The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop, a large but relatively faint supernova remnant. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to approx 6 times the diameter of the full moon. The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.

This is a 2 pane mosaic using the following equipment

Details:

M: Avalon Linear Fast reverse

T: Takahashi FSQ85 with 0.73x reducer

C: QSI 683 with 1.25" 3nm Astrodon Ha and OIII filters.

Pane 1 - 15x1800s Ha, 15x1800s OIII

Pane 2 - 15x1800s Ha, 15x1800s OIII

Total time: 30 hours

Description:

Cygnus Loop is the remnant of a supernova event that occured between 5,000 and 20,000 years ago. This image records the Loop's Hydrogen-alpha and Oxygen-3 emissions. As seen from earth, or 1500 light years away, its apparent diameter is about three degrees (six full moons) while its actual diameter is 170 light years across. The major components that are often photographed separately are Eastern Veil (upper right arc), Western Veil (lower left arc), and Pickering's Triangle (left center). Within the loop there are several embedded New General Catalog Catalog (NGC) objects and at least one Index Catalog (IC) object.

This image is a single, un-mosiaced frame that was captured in a Bortle 6 suburban sky. Transparency as reported by Astrospheric was below average.

Equipment

ZWO ASI6200MM-P/EFW 2" x 7 (HO)

TeleVue NP101is/NPR-2073 (4" f/4.3)

Losmandy G11

Software:

Captured in NINA

Processed in PixInsight

Integration:

Ha: 16 x 600s = 2:40

OIII: 16 x 600s = 2:40

RGB: 20 x 30s each filter

Total: 5:50

The Great Andromeda Galaxy Messier 31 taken from Grandview Campground Ca., in the White Mountains. Equipment: Televue Televue NP127is f4.2 fr; Canon EOS 7D MKII; Orion Starshoot and Mini Guide Scope; Atlas Mount. 35 x 5 minute exposures ISO 1600.

Star forming regions in Taurus including the odd DG 41 (aka Bernes 83, Magakian 77), a reflection nebula in a dust cloud to the lower left of this image. This is near the Barnard 18 complex. Photographed in February 2015 in the Panamint Valley, Calif. - See luminance mosaic.. Details: Televue NP127is f5.2 refractor at f4.2 with TV focal reducer; Atik 383L+ at -18 deg C; Orion EQ-G mount;TS OAG; Orion StarShoot guide. camera. Astrodon E series LRGB filters. Total integration: About 17.25 hours; Luminance 570 min; RGB 155 minutes each. Thanks for stopping by!

The Cygnus Loop is a supernova remnant in the constellation Cygnus spanning roughly 3 degrees (about 6 moon diameters) in the sky. This image is a four-panel mosaic captured over two nights in early August from a dark sky location near Goldendale, WA.

Telescope: Tele Vue 76mm f/6.3 with 0.8x Reducer

Camera: QSI 683wsg

Mount: iOptron iEQ45 Pro

Filter: Astrodon 1.25 inch 5nm Ha

Integration: 130 mins (13 x 10 mins) per panel

Capture Software: Sequence Generator Pro

Post-Processing Software: PixInsight 1.8.8; Adobe Lightroom Classic

This is a shockwave of hydrogen gas expelled in a supernova explosion several thousand years ago. There is probably a remnant stellar black hole or neutron star at the centre of the cloud.

Compression of the gas clouds by the blast wave causes the multiple layers seen. These then fluoresce as energy is pumped into them.

The cloud measures about 3 degrees across the night sky, 6x the diameter of the Moon but our eyes aren’t very sensitive to the deep red light emitted by excited hydrogen gas.

To the left in the image is a region known as the Western Veil, top centre is Pickering’s Triangle and to the mid right is the Eastern Veil or “Witches Broom”.

The dense knot towards bottom left is known as the “Southeastern knot”.

This is a robotic image taken at Grand Mesa Observatory system 1 scope, Colorado. It’s 21 x 10 minute exposures with a hydrogen alpha filter.

I’ve used the program Starnet++ to remove most of the background stars.

The nebula in this image is made from Ha and Oiii narrowband data. The stars are from RGB data. This my first attempt at narrowband imaging, and I am reasonably happy for the first time out. I would like add a lot more Ha and Oiii data. I hope to have an Sii filter soon for shooting other narrowband targets. I still have much to learn about narrowband image processing.

ZWO ASI6200MM-P/EFW (Chroma 3nm Ha and Oiii, and ZWO RGB)

Tele Vue NP101is/0.8x Reducer (4", f/4.3)

Losmandy G11

Ha: 18 x 300s

Oiii: 12 x 600s

RGB: 16 x 30s each

3h and 54m total integration time.

Processing: PixInsight

2e nuit... au total 2h30 d'exposition...

Traitement plus ou moins réussi... car un peu bleuté! Je me reprend sur la 3e :)

AstroM1

r2Cx.2

A two panel widefield Narrowband (HaOIII bi-color) Mosaic of a section of the Veil Nebula Complex (Supernova Remnant).

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint Supernova Remnant. The source Supernova was a star 20 times more massive than the Sun, which exploded around 8,000 years ago. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 36 times the area of the full Moon). Data from FUSE (Far Ultraviolet Spectroscopic Explore) places the nebula at a distance of about 1,470 light-years away. This category of Deep-sky Object is also known as a Filamentary Nebula.

The Western Veil & Pickering's Triangle:

This image shows 2 of the regions in Veil Nebula Complex:

The Western Veil (also known as Caldwell 34), consisting of NGC 6960 (the "Witch's Broom", "Finger of God", or "Filamentary Nebula") near the foreground star 52 Cygni;

Pickering's Triangle (or Pickering's Triangular Wisp), brightest at the north central edge of the loop, but visible in photographs continuing toward the central area of the loop.

Technical Info:

24 x 300 sec. 7nm Hydrogen-Alpha (Ha) per panel.

24 x 300 sec. 6.5nm Doubly Ionized Oxygen (OIII) per panel.

William Optics WO Star 71 Refractor Telescope.

Exposures at -20°C on my QHY163M Camera.

Integration time 8 hours total (4 hours per panel).

Calibration frames: Bias, Darks and Flats.

Image Acquisition:

Sequence Generator Pro with the "Mosaic and Framing Wizard".

Plate Solving:

Astrometry.net ANSVR Blind Solver via SGP.

Processing:

Pre-Processing and Linear workflow in PixInsight,

and finished in Photoshop.

Astrometry Info:

Center RA, Dec: 312.171, 30.742

Center RA, hms: 20h 48m 40.959s

Center Dec, dms: +30° 44' 30.452"

Size: 2.55 x 1.78 deg

Radius: 1.554 deg

Pixel scale: 5.74 arcsec/pixel

Orientation: Up is 124 degrees E of N

View an Annotated Sky Chart for this image.

View this image in the WorldWideTelescope.

Flickr Explore:

2018-10-15

Photo usage and Copyright:

Medium-resolution photograph licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Terms (CC BY-NC-ND 4.0). For High-resolution Royalty Free (RF) licensing, contact me via my site: Contact.

Martin

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Northfield, OH

August 16 & 18, 2023

Equipment--

Telescope: RedCat 51, 250mm focal length

Mount: Sky-Watcher EQ6R-Pro

Camera: ZWO ASI204MC-Pro

Guide scope: Williams Optics 50mm guide scope

Guide camera: ZWO ASI120MM-S

Software: NINA, PHD2

Imaging--

Lights: 35x300s

Darks, Flats, DarkFlats, Bias: assorted

Sensor temp: -10.0

Filter: Optolong L-Pro

Sky: Bortle 6 (nominal)

Post processing--

Software: PixInsight, Photoshop

The Veil Nebula, aka Cygnus Loop, the remnant of a long ago supernova explosion. A composite of 22 frames 90 sec. each, f/7.1, ISO 6400, Nikon D800, modified for sensitivity to hydrogen light, tracked with an iOptron CEM25P mount. Processed in Lightroom and combined in Starry Sky Stacker.

Messier 78 is a fine example of a reflection nebula. The ultraviolet radiation from the stars that illuminate it is not intense enough to ionize the gas to make it glow — its dust particles simply reflect the starlight that falls on them. Despite this, Messier 78 can easily be observed with a small telescope, being one of the brightest reflection nebulae in the sky. It lies about 1350 light-years away in the constellation of Orion (The Hunter) and can be found northeast of the easternmost star of Orion’s belt (Credit eso.org).

This image was taken in the Panamint Valley California in Feb. 2015 over 4 nights. One of the few images that I have taken at the native focal length of the scope (usually f4.1). Conditions good each night for at least part of the night with good to excellent seeing, but thin clouds managed to show up late at night.

Details: Televue NP127is refractor at f5.2; Atik 383L+ at -18 deg C; Orion EQ-G mount;TS OAG; Orion StarShoot guide camera. Astrodon E series LRGB filters. Luminance: 49x600s; RGB: 28/26/24x300s

While appearing as a delicate and light veil draped across the sky, this image from the NASA/ESA Hubble Space Telescope actually depicts a small section of the Cygnus supernova blast wave, located around 2400 light-years away. The name of the supernova remnant comes from its position in the northern constellation of Cygnus (The Swan), where it covers an area 36 times larger than the full moon.

The original supernova explosion blasted apart a dying star about 20 times more massive than our Sun between 10 000 and 20 000 years ago. Since then, the remnant has expanded 60 light-years from its centre. The shockwave marks the outer edge of the supernova remnant and continues to expand at around 350 kilometres per second. The interaction of the ejected material and the low-density interstellar material swept up by the shockwave forms the distinctive veil-like structure seen in this image.

Credits: ESA/Hubble & NASA, W. Blair; CC BY 4.0; Acknowledgement: Leo Shatz

2023 Black Forest Star Party - Friday Night

(35) - 120sec exposures, at ISO 1600, 180mm, f4, no flats, biases or darks, stacked in Siril, final edits in Photoshop

2 years ago, I had a lot of issues to shoot this target. I was fighting against my AZ GTI, and the framing, during a full moon into the snow.

This year attempt was better, a new Moon, more exposure time, no snow but.. The framing, AGAIN! I was supposed to make a mosaic, but I keep it for later (or how to make Galaxies Season less Painful :p )

Comparing to the last Attempt, it's clearly better, the filter did the job (Bortle 8 :/ ) and I was able to bring out some nice details

Next time, I'll get rid of the framing issues, as I get my redcat back.

Meanwhile, Clear Skies :)

Les Dentelles du Cygne (Veil Nebula).

Premier essai en combinant le Celestron RASA 11'', filtres Astronomik LPS et deux à bande étroite (H alpha 12nm et O III 12nm) et un traitement avec Siril, en me concentrant sur une partie seulement du rémanent de supernova. Traitement Siril et PS CS4

RGB: 11 images et 20 Flats. Ha: 19 images et 21 Flats. O III 39 images et 22 Flats 30 Darks, 28 Offsets.

Nikon D5300 modifié astro par Eos for Astro, Celestron RASA 11'', tiroir à filtres UFC Baader télécommande Twin1 ISR2 + Monture Skywatcher EQ6-R pro.

Paramètres: 60s F/2.2 ISO 800, 620mm (équivalent à environ 930mm en 24x36).

Série prise le 6.8.2020.

This object is part of a beautiful supernova remnant located 1500 light years away in the constellation of Cygnus known as the Veil Nebula (or Cygnus Loop). Pickering's Triangle is the least known of the 3 main supernova remnants of the massive and beautiful Veil Nebula. The other 2 remnants are NGC 6960 and NGC 6992/6995.

Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eXtreme filter (2”), 42 x 300 second exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DSS. Image Date: August 3, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).

While appearing as a delicate and light veil draped across the sky, this image from the NASA/ESA Hubble Space Telescope actually depicts a small section of the Cygnus supernova blast wave, located around 2,400 light-years away. The name of the supernova remnant comes from its position in the northern constellation of Cygnus (the Swan), where it covers an area 36 times larger than the full Moon.

The original supernova explosion blasted apart a dying star about 20 times more massive than our Sun between 10,000 and 20,000 years ago. Since then, the remnant has expanded 60 light-years from its center. The shockwave marks the outer edge of the supernova remnant and continues to expand at around 220 miles per second. The interaction of the ejected material and the low-density interstellar material swept up by the shockwave forms the distinctive veil-like structure seen in this image.

Image credit: ESA/Hubble & NASA, W. Blair; acknowledgment: Leo Shatz

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The Cygnus Loop

50+ hours of integration time. 28 different image panels. 3 years in the making!

Found directly overhear in mid to late summer in midnorthern latitudes, the Cygnus Loop spreads its gassy tendrils across the sky. It can be found in the dusty lanes of the Milky Way just by the wing of Cygnus, the swan, glowing in various parts of the electromagnetic spectrum. The nebula complex is located about 2500 LY from Earth and spans 130LY and contains several named "objects" like the Eastern Veil (Witch's Broom). Pickering's Triangle, and the Western Veil. These gassy wisps are all that remain of a star that went supernova about 21000 years ago, spreading its enriched guts across the galaxy.

The bulk of this project was shot in the summer of 2019. I've now revisited with fresh eyes, new tools, and an improves post processing skillset. I've added more data to it than the original, going back and finding other images I'd previously shot of various parts of the nebula, and integrated them into this new image. This image combines nearly 50 hours of integration time with over 20 individual panels to complete the mosaic. The result is a large 56 Megapixel size image of one of the largest deep sky objects in our night sky.

- TECH DATA -

Scope: Explore Scientific ED80 @ f/6

Mount: Celestron CGX

Imaging Camera: ZWO ASI 1600MC-Pro

Filtre: STC Duo-Narrowband

Guide Scope: Orion Mini Guide Scope

Guide Camera: Orion StarShoot Autoguider

Integration time: Unsure - over 50 hours total for the entire pano

Stack: Astro Pixel Processor

Process: PixInsight

Post Processing: Photoshop CC

Shot at Dark Sky Viewing Area near Erinsville, and the Camden Lake Provincial Wildlife Area near Moscow, both in Lennox and Addington County in Eastern Ontario.

The Western Veil (NGC 6960) aka The Witch's Broom, Finger of God, Lacework Nebula or Filamentary Nebula. This is part of the Cygnus Loop which is a supernova remnant. The source supernova was a star 20 times more massive than the Sun, and it exploded between 10,000 and 20,000 years ago. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon). While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements. The Veil Nebula is expanding at a velocity of about 1.5 million kilometers per hour. (Wikipedia)

57 180s lights (2 hours and 50 minutes) with flats and bias. Dithered.

Telescope: - Skywatcher 130PDS Newtonian.

Camera: - Nikon D3100 with a GuDoQi Wireless Wifi SD Card.

ISO: 400. Automated white balance

Filters: - Baader Mark-III MPCC Coma Corrector. IDAS D2 Light Pollution Suppression Filter

Flats taken with a Huion L4S Light Box and a white t-shirt.

Wireless Remote: PIXEL TW-283 DC2 2.4G. (Used for flats and bias)

Mount: - Skywatcher EQ6R.

Guiding: Skywatcher EvoGuide 50ED & ZWO ASI120MM-Mini.

Polar Aligned with SharpCap Pro.

Control Software: - NINA connecting to EQMOD, PHD Guiding 2, Stellarium and Plate Solve 2. EZ Share to automatically push pictures to the laptop.

Processing Software: Stacked in Deep Sky Stacker and edited in Star Tools.

Moon: About 80% waxing gibbous.

Light Pollution and Location: - Bortle 8 in Davyhulme, Manchester.

Seeing: -Starting out terrible but possibly OK by the end of the night.

Notes: Its been a massive learning curve but I have finally got NINA astrophotography to work controlling pretty much everything. I am extremely impressed with this software. Furthermore my trusty old D3100 shutter was controlled by the software through the mount and using the file camera it was able to pick up the pictures just like connecting more expensive Nikons or Cannons to APT(or several other apps that I looked into but came to dead end with the D3100). I was able to bring up the schedule, load the Western Veil which was currently focused on in Stellarium, set the amount of subs I wanted, turn on dithering, then NINA just did its thing by attempting to find the object then correcting itself through plate solving. It even did a meridian flip and recentred the object afterwards. Watching it do its thing was a thing of beauty and is miles away from my original attempts at astrophotography using a AZ goto mount and a star chart.

Being completely up front, like everything in astrophotography you must take several steps backwards before taking a step forward. I have dabbled with NINA for a while but struggled to get to grips with it. I tried taking this same object a few weeks ago but did not have a good session. For some reason, the plate solving was not accurate enough and the object was only half was in frame. This is either because I hadn’t loaded my coordinates in PS2 or the file camera was picking the last picture instead of the current one. Looking back 52 Cygni is very bright star front and centre and it should have been obvious to me that something was not right.

Incidentally that same night, about 4-5 subs in my pictures suffered from dew, pretty much writing them off. I have since bought a cheap camping mat and Velcro to make a home-made dew shield. Handily the camping mat camp with a perfectly sized bit of elastic; I have cut up some cheap cycling shorts and used the elastic to block out any light from the bottom of the telescope. I am hoping this will also help with the dew. I have also made a dew shield for the guider.

I took a gamble on this picture as the weather forecast had me believe that it was going to be cloudy all night. Up until this session it had been predicting a clear night all week and it looked relatively clear when I looked out of the window before setting up. It then cloudy over but only for about an hour and a half which gave me time to make sure everything was set up properly. It then became clear, although seeing was bad, but this did improve over the course of the night. Thankfully, my gamble paid off and is point back in the battle between me and the weather, I have been done so many times with the forecast predicting clear skies but them not materialising.

I add this comment to the end of every one of my pictures but the amount of green being picked up in the Star Tools colour module is insane. I think the D3100 bayer filter is 2 green to every red and blue, it seems like its 10 greens to every red and blue. I hope the colour in this is OK however I had to bump the green bias correction right up and max out the cap green slider. I am slowly but surely saving up for a proper cooled camera which am sure will again take me several steps back before bringing me forward!

HO-HOO (6nm narrow band filters)

Exposure time : Bin1x1 Ha:10h50mn ; OIII:10h20mn

80/600 mm Refractor – Camera ZWO ASI1600MM Pro

Preprocessing with SIRIL

Image processing with Photoshop

Final touch with Lightroom

Les Dentelles du Cygne (Sh2-103) forment un rémanent de supernova dont l'explosion remonterait à une dizaine de milliers d'années. Elles se situent dans la constellation du Cygne. Elle est aussi appelé boucle du Cygne, terme issu de la traduction littérale de son nom anglais (Cygnus Loop). (wikipedia).

Elle contient : la Grande dentelle (NGC 6995 et NGC 6992), la Petite Dentelle (NGC 6960) et le Triangle de Pickering (NGC 6979)

Nikon D5300 + Zenithstar 73

iOptron CEM26 + iPolar

SVBony CLSfilter

ZWO ASI224MC + WO Uniguide 120mm

30 x 3 min (exp=1h30)

AstroM1

(r2.2c)

The arcs and wisps of the Veil Nebula supernova remnant in Cygnus, framed with the open star cluster NGC 6940 in Vulpecula at lower right. The area is marked by a sharp transition between clear starry sky in the Millky Way and brownish-yellow areas obscured by interstellar dust with fewer stars visible. The nebula colours show up well despite this being a "stock" camera, with no filters employed.

The field of view is about 7.5° by 5°, similar to binoculars.

This is a stack of 8 x 5-minute exposures with the Sharpstar 61 EDPH III apo refractor and its 0.75x Reducer for f/4.4, and the old Canon 6D DSLR at ISO 800, all on the ZWO AM5 mount autoguided with the ASIAir, as a test of the combination of gear. Taken June 26/27, 2023 just after local moonset though the sky so near solstice was not astronomically dark. No filter employed and the camera is not modified.

The Veil Nebula - NGC 6960

The Veil Nebula is a supernova remnant located 2,100 lightyears away in the Cygnus constellation that spans 110 lightyears across.

A supernova remnant is the remains of a star that has ended its life in an explosion known as a supernova. In the case of the Veil Nebula, the star in question was 20 times the mass of the Sun and exploded about 8,000 years ago.

A blast wave from the stellar explosion is hitting cooler, more dense interstellar gas and emitting light in the process.

The Veil Nebula is part of the larger Cygnus Loop structure, and the delicate filaments and almost fragile-looking structure are what give the Veil Nebula its nickname.

The Western Veil Nebula (Right), NGC 6960, is also known as the Witch’s Broom, due to its long, thin, raggedy appearance.

The Eastern Veil (Left), also known as NGC 6992 and Caldwell 33, contains NGC 6995, or the Bat Nebula.

Together, NGC 6992 and NGC 6995 are collectively known as the Network Nebula.

Just above the Western Veil you’ll find Pickering’s Triangle, named after the American astronomer Edward Charles Pickering who in the late 19th/early 20th century headed Harvard College Observatory.

To be honest, I was not supposed to post it before Galaxy Season for many reasons. Stars Pinched by the Focuser Lock, Shooting during a full Moon and the fact that the framing/dithering was really annoying with the AZ GTI in Equatorial mode.

But the Cloudy Situation changed the game, as usual. So I decided to resume the processing for this picture. Here is the result of 2 nights in July, during a full moon, in a light polluted sky.

Next time, I'll take my revenge on it :p

Clear skies !!!

Setup :

Camera : ZWO ASI 533 MC

Main Scope : William Optics Redcat 51

Guide Camera : ZWO ASI 120MM Mini

Guide Scope : ZWO Mini Guide Scope

Mount : Skywatcher AZ GTI

Filter : Optolong L-Extreme

Others : ZWO ASIAIR PRO

Lights :

Left : 45 x 300 sec (Total : 3h45)

Right : 42 x 300 sec (Total : 3h30)

Total Mosaic : 7h15

Darks : 60 ~ Offset: 100 ~ Flats: 100

First light with new gear, I think the result speaks for itself. This is the western half of the amazing Cygnus Loop (a.k.a. Veil Nebula), the results of a long ago supernova, a star that blew itself apart in a cataclysmic explosion.

Tech: 3-panel mosaic, each 22 300 sec. exposures, Explore Scientific 102mm FCD100, ZWO ASI294MC, dual narrow-band filter (H-alpha, [OIII]), iOptron CEM25P, ASIAir, processed in Astro Pixel Processor and Adobe Photoshop Lightroom.

#astrophotography #supernovaremnant

The Veil Nebula complex in Cygnus, aka the Cygnus Loop or Cirrus Nebula. This is a remnant of a supernova explosion that occured 5000 to 8000 years ago. It features a mix of red hydrogen-alpha and cyan oxygen III emission for a colourful complex of lacy filaments. The components have the catalogue numbers of NGC 6992-5 (eastern component at left) and NGC 6960 (western component at right, through the star 52 Cygni), and NGC 6974 for the middle area at top called Pickering's Triangle.

The region is on the boundary of a dark dust cloud obscuring stars to the right of the frame and yellowing the sky background there.

This is a blend of 10 x 6-minute exposures at ISO 3200 through an IDAS NBX dual narrowband filter to bring out the nebulosity, with a stack of 14 x 6-minute exposures at ISO 800 with no filter for the natural star colours and sky background, the latter set taken over two nights. All were with the filter-modified Canon R from AstroGear, on the Astronomics Astro-Tech 90CFT apo refractor with its reducer for f/4.8. All stacked, aligned and blended in Photoshop. Luminosity masks, a Nebula filter action with PhotoKemi Tools and a ProContrast filter with Nik Collection 6 ColorEFX helped enhance the nebulosity.

Taken from home in mid-May 2023 on the short nights and limited time between when this area reached high enough altitude to be worth shooting and the onset of dawn twilight.

This is the supernova remnant in Cygnus known as the Veil Nebula, here in its entirety, from the eastern arc at left, catalogued as NGC 6992/5, to the western arc at right, NGC 6960, running past the star 52 Cygni. At top is the wedge-shaped "Pickering's Triangle," but discovered photographically by Wiliamina Fleming, one of the Harvard "computers." The field is filled with lots of little nebula bits and shrapnel-like fragments. All are remains of a star that exploded as a supernova some 10,000 to 20,000 years ago and is about 2,400 light years away.

The red is emission from ionized hydrogen, the cyan emission from ionized oxygen. This nebula shows a lot of oxygen emission at the leading edge of the expanding cloud of debris.

This is a blend of three stacks of exposures:

-- 10 x 8 minutes at ISO 3200 through an Optolong L-eXtreme very narrowband filter which lets through just green-blue oxygen III and red hydrogen alpha wavelengths

-- 8 x 8 minutes at ISO 1600 through an Optolong L-eNhance narrowband filter which lets through a broader bandwidth of light at those two main wavelenths, OIII and Ha

-- 8 x 6 minutes at ISO 800 through no filter which records the full spectrum of light

All were with the Canon EOS Ra through the SharpStar 94mm apo refractor at f/4.4 with its reducer/flattener and using an AstroHutech filter drawer between the flattener and camera to aid filter swapping. The L-eNhance set was taken June 11 until clouds intervened; the other 2 sets were taken the next night June 12. There was only about 2 hours of semi-darkness at this time of year from my latitude of 51° N. Guiding was with the MGEN3 stand-alone auto-guider (which applied a 5-pixel dither or image shift between each exposure) and William Optics 30mm guidescope. So impressive results less than 2 weeks from solstice at my latitude, made possible by the filters. With the dithering, no LENR or darks were applied, despite this being a warm-ish night.

The L-eXtreme set contributes the cyan component; the L-eNhance set contributes the red component best; the clear base layer contributes more normally coloured stars, as the filters tend to discolour the stars and add haloes.

All stacking, aligning, blending and masking were with Photoshop, with luminosity masks created with Lumenzia for selected adjustments to regions of different brightnesses. A high pass sharpen also added to the bright areas with another luminosity mask.

Same data as earlier image, but used Ha as Luminance and green channel, SII as red and OIII as blue.

45x240s, 200-500mm f/5.6 @500mm

Part of the supernova remnant known as the Veil Nebula or Cygnus Loop. The result of a star that blew itself apart in a gigantic explosion several thousand years ago.

60 300 sec. exposures (5 hours total exposure), Celestron C5 with f/6.3 focal reducer/corrector (900mm focal length), ZWO ASI294MC Pro camera, dual narrow-band filter (H-alpha+[O III]), ZWO ASIAir controller, iOptron CEM25P mount, processed in AstroPixelProcessor and Adobe Lightroom.

Hi all,

This is my longest astrophotography project to date.

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

It constitutes the visible portions of the Cygnus Loop, a many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun, which exploded around 8,000 years ago. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full Moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light years.

Integration:

15 hours, 50 minutes of total exposure time

ISO 200

No Darks (Dithered)

200 Bias Frames

25 Flats Per Session

Equipment:

Telescope: William Optics Zenithstar 73

Mount: Sky-Watcher HEQ5 Pro Rowan Belt Mod

Autoguiding Scope: Starwave 50mm Guidescope

Autoguiding Camera: ZWO ASI 120MM Mini

Camera: Canon 80D (unmodified)

Software:

PHD2 Guiding

Astrophotography Tool

Deepskystacker

Adobe Photoshop

Adobe Lightroom

The Cygnus Loop (a.k.a. Veil Nebula) in the constellation Cygnus, the remnants of a supernova explosion in which a star blew itself apart after exhausting its primary nuclear fuels.

A mosaic of 150 exposures, 300 sec. each in two overlapping fields in the light emitted by hydrogen, oxygen, and sulfur gas, rendered in red, blue, and green, respectively. Explore Scientific ED102 0.1m f/7 refractor, Stellarvue 0.8x reducer/flattener, ZWO ASI294MC camera, 7nm H-alpha, 7nm [O III], 6.5nm [S II] filters, iOptron CEM25P mount, ASIAir controller, autoguided. Processed in Astro Pixel Processor and Lightroom.

Once upon a time there were one or two massive stars in the direction of constellation Cygnus. They exploded badly and shined extremely strongly for a short while 10 or 20 thousand years ago. The stars left this gas and dust behind. The irregular and random distribution of gas and dust are expanding at more than 100km/second at 2,400 light-years away from us. The high velocity makes the faint reddish arch surrounding the area like bow shock at the apex of ship. All in all, this is a supernova remnant. Thus they say.

Here is another sample of infrared bow shock in Camelopardalis:

www.flickr.com/photos/hiroc/53361264020

Equipment: Takahashi FSQ-130ED, F3 Reducer 0.6x, IDAS NB12 Dual Narrowband Filter, and EOS R-SP4II, modified by Seo San on ZWO AM5n Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 174MM-mini, and PHD2 Guiding

Exposure: 6 times x 240 secconds, and 6 x 60 seconds at ISO 6,400 and f/3.0, focal length 390mm

There encroached clouds, and exposure session got short. This is a version made only with shorter exposure frames. Total exposure length was as short as half an hour. I felt this rather natural, clearer, and beautiful.

site: 1,118m above sea level at lat. 38 56 39 North and long. 140 48 17 East in Iwakagami-daira on the southern slope of Mt. Kurikoma in Kurihara Miyagi 宮城県栗原市 栗駒山 いわかがみ平

Ambient temperature was around 13 degrees Celsius or 55 degrees Fahrenheit. Wind was mild.

The Cygnus Loop is a vast supernova remnant located in the constellation Cygnus, about 1800 to 2600 light-years from Earth. It’s the aftermath of a massive supernova explosion that occurred roughly 10000 to 20000 years ago. Its remnants now span a bubble-like structure approximately 120 light-years in diameter. Its shock waves are still racing through space, sculpting delicate filaments of glowing, inonized gases that resemble twisted ribbons of light.

This celestial spectacle includes several visually striking components collectively known as the Veil Nebula. It contains segments like the Western Veil (Witch’s Broom), Eastern Veil, and Pickering’s Triangle. The Loop emits across multiple wavelengths like infrared, visible light, and X-rays. This makes it a favorite target for both amateur and professional astronomers and a very popular target for both broadband and narrowband astrophotography.

-= Tech Data =-

-Equipment-

∙ Imaging Scope: Askar FRA300 Pro

∙ Mount: Celestron CGX

∙ Imaging Camera: ZWO ASI 2600MC Air

∙ Focus: ZWO EAF

- Acquisition -

∙ 8 hours 5 minutes of 5 minute exposures

Shot at the Lennox and Addington County Dark Sky Viewing Area near Erinsville, Ontario.

A cropped Bi-Color processing test of Pickering's Triangle (or Pickering's Triangular Wisp) in the Veil Nebula (a Supernova Remnant).

NGC 6974 and NGC 6979 are luminous knots in a fainter patch of nebulosity on the northern rim between NGC 6992 and Pickering's Triangle.

Ha & OIII Bi-Color:

Photographed in the Hydrogen-Alpha and Oxygen III spectral wavelengths of light (Ha mapped to Red, OIII mapped to Blue, SynthGreen).

Narrowband filters:

H-Alpha

OIII

Processing:

Pre-Processing and Linear workflow in PixInsight, and finished in Photoshop (experimenting with Wavelets, Photoshop Actions and new bi-color processing techniques).

Astrometry Info:

nova.astrometry.net/user_images/1381741#annotated

RA, Dec center: 312.019287471, 31.6310735368 degrees

Orientation: 0.443881002562 deg E of N

Pixel scale: 2.4980010893 arcsec/pixel

Martin

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20 x 120 sec with a Pentax K-1 Mark II (unmodded) at 400 ISO, 200/800 Newtonian reflector with coma corrector.

Shot from my heavily polluted backyard.

This image shows a small section of the Veil Nebula, as it was observed by the NASA/ESA Hubble Space Telescope. This section of the outer shell of the famous supernova remnant is in a region known as NGC 6960 or — more colloquially — the Witch’s Broom Nebula.

More information: www.spacetelescope.org/images/heic1520a/

Credit:

NASA, ESA, Hubble Heritage Team

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago.

At the time of the explosion, the supernova would have appeared brighter than Venus in the sky, and visible in the daytime! The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon).

The area of the nebula pictured here, also known as NGC 6960, is the “western” portion. At the top of the image is the filamentary segment often called the “Witch’s Broom”.

The image records narrowband signal from the 3 ionized gases: hydrogen alpha (red), hydrogen beta (blue), doubly ionized oxygen (teal).

Capture info:

Location: SkyPi Remote Observatory, Pie Town NM US

Telescope: Orion Optics UK AG14 (F3.8)

Mount: 10 Micron GM3000

Camera: SBIG STXL 16200

Data: H-alpha, H-beta, OIII: 6.5, 6, 7 hours respectively

Processing: Pixinsight

J'ai ici encore opté pour la technique visant à faire ressortir le signal de l'Hydrogène excité: la session a été divisée en trois sous session, l'une en RGB, la suivante en bleu (à l'aide d'un filtre B+W 52E) et la dernière avec un filtre Kenko R1 sur l'objectif, afin d'obtenir, en combinaison avec le filtre interférentiel LPS-V4-N5, un filtrage en bande moyenne d'environ 19nm (www.sciencecenter.net/hutech/idas/lpsv4.htm)

Les deux sous sessions ont été assemblées indépendamment dans IRIS et les 2 fichiers résultants ensuite combinés, puis passés dans Photoshop CS4.

15 Darks, 20 Offsets (Darks et Offsets ont été utilisés pour les 2 sous sessions); 21 (RGB), 22 (B) et 15 (R) Flats . Assemblage dans IRIS et cosmétique dans Photoshop CS4. Nikon D5300 modifié astro par Eos for Astro, Nikkor 200-400mm F/4, filtre IDAS LPS-V4-N5, filtre Kenko R1 et B+W 52E, télécommande Twin1 ISR2 + Monture Astrotrac 320x.

Paramètres: 90s F/4 ISO 3200, 250mm.

Série prise le samedi 22 avril 2018

This is the Veil Nebula supernova remnant in Cygnus, the Swan, and sometimes called the Cirrus Nebula, or the Cygnus Loop, or the Lacework Nebula. It carries the catalogue designations of NGC 6960 for the righthand side of the arc (on the western side through the star 52 Cygni), and NGC 6992-5 for the lefthand arc (on the eastern side). In between is the central complex sometimes called Pickering's Triangle or more accurately, Fleming's Triangular Wisp, since Williamina Fleming actually discovered it, under the employment of Edward Pickering.

The Veil Nebula is the expanding remains of a star that exploded about 10,000 to 20,000 years ago, and is about 2,400 light years away.

At lower right is the bright star cluster NGC 6940 over the border in Vulpecula, the Fox. Patches of fainter red nebulosity in central Cygnus glow at right. The star Geinah, or Epsilon Cygni, is at top.

The field of view here is 15º by 10º. Use of a special filter brought out the faint nebulosity.

Technical:

This is a stack and blend of:

- 4 x 60 second exposures with no filter and at ISO 800

- 5 x 90 second exposures with an URTH Night broadband filter, and at ISO 800. This darkened the sky somewhat and helped emphasize the nebula.

- 5 x 90 second exposures with an Astronomik UHC-E clip-in filter, at ISO 1600. This is a dual narrowband filter letting through only red hydrogen and green oxygen wavelengths from emission nebulas. In processing, I removed the stars from the UHC stack, so it contributes only the nebulosity. The stars come from the unfiltered or mildly filtered stacks.

- All with the Canon RF135mm lens at f/2 on the astro-modified Canon EOS R camera, and tracked (but not guided) on the MSM Nomad tracker. I shot twice as many frames as was used, but had to discard half the frames due to slight star trailing, not unusual for a small star tracker when used with a telephoto lens.

I shot the frames as part of testing the effectiveness of the filters. Shot from home on a smokeless night, September 13, 2025. But clouds moved in to prevent more exposures.

Once upon a time there were one or two massive stars in the direction of constellation Cygnus. They exploded badly and shined extremely strongly for a short while 10 or 20 thousand years ago. The stars left this gas and dust behind. The irregular and random distribution of gas and dust are expanding at more than 100km/second at 2,400 light-years away from us. The high velocity makes the faint reddish arch surrounding the area like bow shock at the apex of ship. All in all, this is a supernova remnant. Thus they say.

Here is another sample of infrared bow shock in Camelopardalis:

www.flickr.com/photos/hiroc/53361264020

Equipment: Takahashi FSQ-130ED, F3 Reducer 0.6x, IDAS NB12 Dual Narrowband Filter, and EOS R-SP4II, modified by Seo San on ZWO AM5n Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 174MM-mini, and PHD2 Guiding

Exposure: 4 times x 900 seconds, 6 x 240 sec, and 6 x 60 seconds at ISO 6,400 and f/3.0, focal length 390mm

There encroached clouds, and exposure session got short.

site: 1,118m above sea level at lat. 38 56 39 North and long. 140 48 17 East in Iwakagami-daira on the southern slope of Mt. Kurikoma in Kurihara Miyagi 宮城県栗原市 栗駒山 いわかがみ平

Ambient temperature was around 13 degrees Celsius or 55 degrees Fahrenheit. Wind was mild.

NASA's Hubble Space Telescope has unveiled in stunning detail a small section of the expanding remains of a massive star that exploded about 8,000 years ago.

Called the Veil Nebula (or Cygnus Loop), the debris is one of the best-known supernova remnants, deriving its name from its delicate, draped filamentary structures. The entire nebula is 110 light-years across, covering six full moons on the sky as seen from Earth, and resides about 2,100 light-years away in the constellation Cygnus, the Swan.

This view is a mosaic of six Hubble pictures of a small area roughly two light-years across, covering only a tiny fraction of the nebula's vast structure.

This close-up look unveils wisps of gas, which are all that remain of what was once a star 20 times more massive than our sun. The fast-moving blast wave from the ancient explosion is plowing into a wall of cool, denser interstellar gas, emitting light. The nebula lies along the edge of a large bubble of low-density gas that was blown into space by the dying star prior to its self-detonation.

The image shows an incredible array of structures and detail from the collision between the blast wave and the gas and dust that make up the cavity wall. The nebula resembles a crumpled bed sheet viewed from the side. The bright regions are where the shock wave is encountering relatively dense material or where the "bed sheet" ripples are viewed edge on.

In this image, red corresponds to the glow of hydrogen, green from sulfur, and blue from oxygen. The bluish features, outlining the cavity wall, appear smooth and arched in comparison to the fluffy green and red structures. The red glow is from cooler gas that was excited by the shock collision at an earlier time and has subsequently diffused into a more chaotic structure. A few thin, crisp-looking, red filaments arise after gas is swept into the shock wave at speeds of nearly 1 million miles an hour, so fast that it could travel from Earth to the moon in

15 minutes.

Astronomers are comparing these new images to images taken by Hubble in 1997. This comparison allows scientists to study how the nebula has expanded since it was photographed over 18 years ago.

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

For images and more information about the Veil Nebula and the Hubble Space

Telescope, visit:

heritage.stsci.edu/2015/29

hubblesite.org/news/2015/29

Velo del Este, Caldwell 33, NGC 6992 con L-extrem (HOO)

The Cygnus Loop (a.k.a. Veil Nebula) in the constellation Cygnus, the remnants of a supernova explosion in which a star blew itself apart after exhausting its primary nuclear fuels.

A mosaic of 72 exposures, 300 sec. each in six overlapping fields in the light emitted by hydrogen gas. Explore Scientific ED102 0.1m f/7 refractor, Stellarvue 0.8x reducer/flattener, ZWO ASI294MC camera, 7nm H-alpha filter, iOptron CEM25P mount, ASIAir controller, autoguided. Processed in Astro Pixel Processor and Lightroom.

This faint nebula lies in both constellations Cepheus and Draco. This field contains Young Stellar Object Bernes 38 and a variable reflection nebula HH 215 similar to Hubble's Variable Nebula NGC 2261. Young stellar objects (YSOs) are stars in the earliest stages of development. Most of the material that goes into forming a star is accreted through a circumstellar disk and in this process the protostellar system drives an energetic bipolar jet and outflow into its surroundings. Credit: Harvard Smithsonian Center for Astrophysics (CfA). . The jets can be seen in Bernes 38 to the upper and lower left in the close up, with the center of the star to the lower right. Imaging Details: NP127is at f4.1; Atik 383L+ at -18 deg C; Orion EQ-G mount;TS OAG; Astrodon E series LRGB filters: 11.3 hours Luminance; 95/115/145 minutes R/G/B. Total exposure: about 17 hours over three nights in June 2014 at Grandview near the Ancient Bristlecone Forest; Processed with Images Plus; Maxim DL; Registar; Photoshop Elements; .

FR :

Au cœur de la constellation du Cygne

Cette photographie d’une partie de la constellation du Cygne, révèle une région riche en nébuleuses autour de l’étoile supergéante Gamma Cygni, également connue sous le nom de Sadr. Sadr, située quasi au centre de l’image, est une supergéante ayant 12 fois la masse de notre Soleil et environ 150 fois son rayon.

Dans toute l’image, des nuages complexes de gaz et de poussière, ainsi que des étoiles, se déploient. À gauche de Sadr, on trouve IC 1318, surnommée la nébuleuse du Papillon en raison de sa forme évoquant deux ailes lumineuses séparées par une longue bande de poussières sombres.

En bas à droite, on remarque la petite et lumineuse nébuleuse du Croissant (NGC 6888). Située à environ 5 000 années-lumière de la Terre, cette nébuleuse en émission a été créée par les puissants vents stellaires de l'étoile Wolf-Rayet WR 136, visible en son centre.

Encore plus bas, on peut observer la nébuleuse de la Bulle de Savon, une nébuleuse planétaire peu lumineuse et difficile à photographier, parfaitement sphérique. Découverte en 2007, elle résulte de l'expulsion des couches externes d'une étoile mourante.

Cette image est le résultat de dix heures d'exposition, réparties sur trois nuits (les nuits étant courtes en ce moment, surtout dans le nord de la France).

Exifs : Askar Fra400 - NEQ6ProGoto - Canon 6D Astrodon (EosforAstro EOS 4Astro) - Optolong L-Extreme Optolong Astronomy Filter – Autoguidage Asi120mini - 110x300s - Traitement : Siril/Photoshop

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EN :

At the Heart of the Cygnus Constellation

This photograph of a part of the Cygnus constellation reveals a region rich in nebulae around the supergiant star Gamma Cygni, also known as Sadr. Sadr, located almost at the center of the image, is a supergiant with 12 times the mass of our Sun and about 150 times its radius.

Throughout the image, complex clouds of gas and dust, as well as stars, are displayed. To the left of Sadr is IC 1318, nicknamed the Butterfly Nebula due to its shape resembling two bright wings separated by a long band of dark dust.

At the bottom right, the small and bright Crescent Nebula (NGC 6888) can be seen. Located about 5,000 light-years from Earth, this emission nebula was created by the powerful stellar winds of the Wolf-Rayet star WR 136, visible at its center.

Even lower, the Soap Bubble Nebula, a faint and difficult-to-photograph planetary nebula, perfectly spherical, can be observed. Discovered in 2007, it is the result of the expulsion of the outer layers of a dying star.

This image is the result of ten hours of exposure, spread over three nights (the nights being short at the moment, especially in northern France).

Exif: Askar Fra400 - NEQ6ProGoto - Canon 6D Astrodon (EosforAstro EOS 4Astro) - Optolong L-Extreme Optolong Astronomy Filter – Autoguiding Asi120mini - 110x300s - Processing: Siril/Photoshop

Les Dentelles du Cygne (Sh2-103) forment un rémanent de supernova dont l'explosion remonterait à une dizaine de milliers d'années. Elles se situent dans la constellation du Cygne. Elle est aussi appelé boucle du Cygne, terme issu de la traduction littérale de son nom anglais (Cygnus Loop). Elle contient : la Grande dentelle (NGC 6995), la Petite Dentelle (NGC 6960) et le Triangle de Pickering (NGC 6979)

The Cygnus Loop is a large supernova remnant (SNR) in the constellation Cygnus. It is known as the Veil Nebula, also called the Cirrus Nebula or the Filamentary Nebula. Several components have separate names, including the Western Veil or Witch's Broom, the Eastern Veil, and Pickering's Triangle.

(Source: wikipedia)

Nikon D5300 + Zenithstar 73

iOptron CEM26 + iPolar

SVBony CLSfilter

ZWO ASI224MC + WO Uniguide 120mm

2, 9 et 17 juillet 2022

100 x 3 min -- ISO 800

Siril, Gimp & Starnet++ v2.0 (tire un peu trop sur le vert :(

AstroM1

(r2a.3x.2)

A small section of the Veil Nebula observed by the NASA/ESA Hubble Space Telescope. This section of the outer shell of the famous supernova remnant is in a region known as NGC 6960, or the Witch’s Broom Nebula.

More information and image options.

Credit: NASA, ESA, Hubble Heritage Team