View allAll Photos Tagged Optolong
Data - 13/09/2021
Hora - 19:30 local (-3 UTC)
Lat - 7,13S
Log - 34,83W
Local - João Pessoa, PB - Brasil
Bortle - Class 7
Câmera - Canon T3i modificada
Filtro CLS-CCD Clip Optolong
Telescópio - SW 150mm F8
EXP - 1/100s
ISO - 100
Montagem - DOBSONIANA
Light - 120 (44%)
Softwares Processamento - PIPP/AS3/PS/Registax
#astfotbr
Only this Ic63 nebula, without the Gamma Cassiopiae star that always appears on captures.
It’s not on the frame but still it's possible feel the strong presence of this big star (at the up-right side of the picture) as a blue light going to the nebula.
Complex nebula to capture (only mag. 10), also with this dominant variable star close who makes so difficult obtain all details and nuances.
Gamma Cassiopeiae is a star at the center of the distinctive "W" asterism in the northern circumpolar constellation of Cassiopeia. Although it is a fairly bright star with an apparent visual magnitude that varies from 1.6 to 3.0.
Gamma Cassiopeiae is a Be star, a variable star, and a binary star system. Based upon parallax measurements made by the Hipparcos satellite, it is located at a distance of roughly 550 light-years from Earth. (star description credits: Wikipedia)
Technical card
Imaging telescopes or lenses:Altair Astro RC250-TT 10" RC Truss Tube, Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging cameras:ZWO ASI183MM-Cool, ZWO ASI1600MM-Cool
Mounts:Skywatcher EQ6R Pro, Mesu 200 Mk2
Guiding telescopes or lenses:Teleskop Service TSOAG9 Off-Axis Guider, Celestron OAG Deluxe
Guiding cameras:ZWO ASI174 Mini, ZWO ASI290 Mini
Focal reducers:Riccardi Reducer/Flattener 0.75x, Telescope-Service TS 2" Flattener
Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight
Filters:Optolong OIII 6.5nm 36mm, Optolong SII 6.5nm 36mm, Astrodon HA 36mm - 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm, Astrodon S-II 36mm - 5nm, Astrodon O-III 36mm - 5nm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30, MoonLite CSL 2.5" Focuser with High Res Stepper Motor
Resolution: 1932x1680
Dates:Sept. 29, 2019, Sept. 30, 2019, Oct. 1, 2019, Oct. 3, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 80x30" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 80x30" (gain: 75.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 138x600" (gain: 200.00) -20C bin 1x1
Optolong OIII 6.5nm 36mm: 71x600" (gain: 111.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 80x30" (gain: 75.00) -20C bin 1x1
Optolong SII 6.5nm 36mm: 69x600" (gain: 111.00) -20C bin 1x1
Integration: 48.3 hours
Avg. Moon age: 2.80 days
Avg. Moon phase: 10.93%
Astrometry.net job: 3055178
RA center: 14.942 degrees
DEC center: 60.911 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 90.066 degrees
Field radius: 0.358 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
The Crescent Nebula (NGC 6888) and surrounding stuff...
Rio Rancho NM Bortle 5 zone
May 27, 2022
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong h-alpha filter
ZWO ASI Air Pro
Sky-Watcher HEQ5
42 X 300s lights ; with darks bias dithering
Gain 111 at -10C
Processed in DSS and PS
M40 (also known as Winnecke 4) consists of two unrelated stars in the constellation Ursa Major.
There are some galaxies in here as well including NGC 4362
NGC 4335
NGC 4290
NGC 4284
Technical Info:
Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL
Explore Scientific 2" HR Coma Corrector
Camera: ZWO ASI533MC Pro
Filter: 2" Optolong L-Pro
Mount: Losmandy GM8
Guiding: QHY Mini Guide Scope + PHD 2
Acquisition: Sequence Generator Pro
Exposure: Light (Gain 100) - Best 85% of 14 subs @ 2 Minutes
Calibration: 30 Bias, 30 Darks, 30 Flats
Processing: Deep Sky Stacker, Adobe Photoshop
#astrophotography #astroeverywhere #astrobackyard #losmandy #losmandygm8 #zwo #asi533mcpro #irisnebula #sequencegeneratorpro #m40
From Wikipedia: The Pelican Nebula (also known as IC 5070 and IC 5067) is an H II region associated with the North America Nebula in the constellation Cygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name. The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbor, the North America Nebula, by a molecular cloud filled with dark dust.
Observation data: J2000.0 epoch
Right ascension: 20h 50m 48.0s
Declination: +44° 20′ 60.0"
Distance: 1,800 ly
Apparent magnitude (V): 8.0
Apparent dimensions (V): 60' x 50'
Constellation: Cygnus
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eNhance filter (2”), 24 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 2, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
There's just no shortage of cool stuff that can be found lingering around the star Alnitak in Orion's belt: the Flame Nebula (NGC 2024), the Horsehead Nebula (IC 434), the emission and reflection nebula NCG 2023, and the smaller reflection nebulae IC 431 and IC 432. Combine all of that with a generally spectacular background and you've got something.
This image maps Ha to red, SII to green, and OIII to blue.
Rio Rancho NM Bortle 5 zone,
November 30, 2022
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong Ha, OIII, and SII filters
ZWO ASI Air Pro
Sky-Watcher HEQ5
12 X 300s Ha
12 x 300s OIII
12 x 300s SII
Darks bias dithering
Gain 111 at -10C
Processed in DSS and PS
At Axeitos Dolmen, 4000 BC
12x60s ISO 1600 for the sky & 7x30s ISO 3200 for the foreground
Nikon D600 full spectrum Optolong L-Pro clip filter, Nikkor AI 28mm @f/4, Softon filter
Very strong light pollution from nearby urban and industrial areas. Light candles placed inside the monunent
m16-160x15-g37-o200-qhy183c_-15C-lnh-85f5_6-v1
40 minutes with 160x15 sec sub-images. TV-85 at F/5.6, QHY183c at -15C, Optolong L-eNhance filter, Gain 37, Offset 200. SharpCap 3.2 LiveStacking w/Dithering, PHD2 Guiding, Atlas EQ-G w/EQMOD.
Metro area, Bortle 7-8 zone, full moon, but with excellent seeing and very clear and transparent skies. Taken on Oct 2, 2020.
Telescopio: Celestron C11 XLT Fastar
Montatura: iOptron CEM60
CMOS di ripresa: ZWO ASI 174 mono Cooled
Software:SharpCap 3.2 Pro, Zoner Photo Studio X v. 19, Pleiades Astrophoto PixInsight 1.8, Avistack 2.0
Filtro: Optolong Red CCD 50,8 mm
Moonlite CF 2,5" focuser with high resolution stepper DRO
Data: 12 Giugno 2019 Ore: 20:57
Pose: 500 a 73fps
Lunghezza focale: 2800 mm Seeing: 2 Trasparenza: 8
Setup#1
Camera: QHY163M
Telescope: 11" Celestron Edge HD w/V4 Hyperstar
Mount: Orion HDX-110
Optolong LUM filter: 120x30sec
Setup#2
Camera:QHY128C
Telescope: Astrotech AT65EDQ
Mount: Piggybacked on Setup#1
30x120sec
Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 200p + SW Coma Corrector 0.9x + EQ6-R-Pro + Long Perng 2" Dual Speed Low Profile Crayford Focuser + ZWO EAF
Equipo guía: guidescope 60/240 mm, camara guia ZWO ASI 120mm mini
*Gain 139, -20 º C, Ha 7nm 2" Optolong, 120x180"
*Gain 139, -20 º C, Oiii-CCD 6.5 nm 2" Optolong, 180x180"
100 Darks
100 Flats por filtro
Polar Align: SharpCap 3.2
Adquisición: SGP 3.1
Procesado: Pixinsight 1.8.8, PS
Among the astrophotographs I made, this is, at the moment, the one with the longest total exposure time, totaling 19 hours and 35 minutes (captured in four nights).
"The beautiful spiral galaxy Messier 83 is located in the constellation Hydra and is also known as NGC 5236 and as the Southern Pinwheel galaxy. Its distance is about 15 million light-years, being about twice as small as the Milky Way". Source: eso.org
Sky-Watcher 203mm F/5 EQ5 reflector with Onstep and electronic focuser ZWO EAF, Canon T6 (primary focus) modified, Optolong L-eNhance filter (in part of the frames). 50mm guidescope with ASI 290MC. 235 light frames (116x300 "ISO 800 + L-eNhance: 119x300" ISO 1600), 40 dark frames, 64 flat frames. Processing: DeepSkyStacker and PixInsight.
@LopesCosmos
Telescopio: Celestron C8 Edge HD
Montatura:iOptron CEM60
Camera di acquisizione:QHY 178 mono cooled
Filtro: Optolong Red CCD 50,8 mm
Software:SharpCap 3.2 Pro, Emil Kraaikamp Autostakkert 3.0.14, Zoner Photo Studio X v. 19, Pleiades Astrophoto PixInsight 1.8, Astra Image 4 SI
Ora: 21:04
Pose: 250 FPS: 45
Lunghezza focale: 2032 mm
Seeing: 3 Trasparenza: 7
Camera: QHY294C Pro
Scope: SW 200/1000 Newtonian modified
Mount: SW EQ6-R Pro
Filter RGB: Optolong L-Pro 2"
Filter Ha & OIII: Antlia ALP-T 2"
Expo RGB: 36 x 300s, 180 x 180s Light (12h) + Dark, Flat, Bias
Expo Ha & OIII: 27 x 600s Light (4.5h)+ Dark, Flat, Bias
Controlled by StellarMate
Processed in PixInsight and Photoshop LR
2022.05.23 - 2022.07.03 Varpalota, Hungary
B33 Horsehead Nebula in Orion. Scope: TSAPO65Q + TeleVue NPR-1073 0.8X Reducer. Camera: ZWO ASI294MC Pro + Optolong L-Pro Filter. Mount: StellarDrive 6R. Guide: SkyWatcher EvoGuide + Altair 130M. 14 x 5 mins. Processed in Astro Pixel Processor. Finished in Adobe CC.
Lagoon Nebula
HaLRGB
120 - 180 - 60 - 60 - 60
Subs: 3 Minutes
Total: 8 Hours
PixInsight + PS6
TS 115/800
ZWO ASI 1600 Mono Cooled
Optolong Filters
After leaving the city to get out in the dark I was chased back by clouds, 20 shots came from first night in the country and 108 shot from home in the clear all night long. this is 10 min shots, quite a spectacular colour full nebula area. once again this is 99% edited in PixInsight.
ZWO ASI071MC Pro @ -10c
Manual focus ,
Optolong LeNhance filter,
Skywatcher Black DiamondED80 OTA
Skywatcher EQM35Goto
Guided PHD2, SGP
DSS, Pixinsight, Ps.
NGC 6188 in pseudo SHO (Hubble Palette)
R channel used as Ha
G channel used as SII
B channels ased as OIII
R(SII)/G(0.8*Ha+0.2*OIII)/B(OIII)
A few masks and curves manipulations in PixInsight to get the right colour scheme
Redcat51 + ZWO ASI533MC + Optolong L-eXtreme
ZWO ASI120MC-S + William Optics UniGuide 32mm
AZ-EQ5
40x480" lights
Calibrated with dark and bias frames
Nebulosity4
PHD2
PixInsight
Photoshop CC
Cairns (Australia)
Bortle 5
exif: DIY 12" JF-NP telescope, EQ8 pro - ASI2600MM pro - Optolong LRGB filters - 69x3 min L, 22x3 min RGB . Edit: PIX and PS
Telescopio: Celestron C8 Edge HD
Montatura: iOptron CEM60
Lunghezza focale: 2032 mm
Camera di riresa: ZWO ASI 174 mono Cooled
Filtro: Optolong Green CCD 50,8 mm
Folcuser: Moonlite CF 2,5" focuser with high resolution stepper DRO
Data:02 Luglio 2020 Ore: 21:46 Tempo Locale
Pose: 221 sommate su 2015 riprese a 165 fotogrammi al secondo
Seeing: 2 Trasparenza: 5
* Setup:
Telescope: Refractor Orion ED80
Focal Length: 600mm
Camera: QHY163M
Mount: HEQ5 Pro
Filters: LRGB Optolong and H-Alpha 7nm Baader
Location: Silvânia / GO / Brazil
*Exposure:
Ha: 1.5 hour (subs 300s) bin1x1
R: 0.5 hour (subs 120s) bin2x2
G: 0.5 hour (subs 120s) bin2x2
B: 0.5 hour (subs 120s) bin2x2
Total: 3 hours
This is the latest data that I have processed, captured from GrandMesaObservatory.com in Western Colorado and I’m using the Sky-Watcher Esprit 150mm ED F7.0 Triplet APO Refractor that Sky-Watcher USA have sent to us for testing. I acquired the data in Color using LRGB Filters and H-Alpha was added to the red channel.
This time around the camera we are using is the QHY168 Monochrome CMOS camera with an APS-C format sensor that was sent to us for beta testing. The QHY168M matched with the Sky-Watcher 150 Esprit has an image scale of 0.94 arcsec/pixel and a Field of view of 51.6 x 77.7 arcmin.
The QHY168 uses the SONY Exmor IMX071 sensor which has 4.8um pixels and 2.3e- to 3.2e- read noise.
This setup is “System 2” and one of 3 telescopes currently available through Grand Mesa Observatory’s Subscription services which you can read more about here: grandmesaobservatory.com/equipment-rentals/
Total Integration time: HaLRGB 11.6 hours
Image capture details
Terry Hancock downunderobservatory.com
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
Dates: September 9th 10th 2018
LRGB, 500 min, 25 x 300 sec each, bin 1x1
H-Alpha 200 min, 20 x 600 sec, bin 1x1
Camera: QHY168M Monochrome CMOS APS-C Beta
Gain 10, Offset 30, Calibrated with Flat, Dark & Bias
Optics: Sky-Watcher Esprit 150mm ED Triplet APO Refractor
Filters by Optolong
Image Acquisition software Maxim DL5
Pre Processed in Pixinsight
Post Processed in Photoshop
The Triangulum Galaxy is the third largest galaxy within the Local group, behind Andromeda and our own Milky Way. Found in its namesake constellation of Triangulum, this galaxy bears the distinction of the most distant object which can be seen with the naked eye and is a wonderful example of a classic spiral galaxy. It has enjoyed a rather quiescent life, having evolved without any major tidal interactions with other galaxies and its structure is very uniform as a result.
In 2007 astronomers using the Chandra X-ray Observatory, in orbit around Earth, detected the largest stellar-mass black hole ever found within M33. The 16 solar-mass black hole has an obital stellar companion, and from our vantage point, the black hole eclipses its binary companion, blocking its view, every 3.5 days.
M33 is also an important object to astronomers because it is the ultimate gauge for the darkness of a location. It takes just a tiny bit of light pollution to eliminate this object from view.
● Object specifications:
► Designation: OU 4
► Object type: Planetary nebula
► Stellar coordinates:
-Ra: 21h 11m 48,2s.
-DEC: +59° 59′ 12″.
► Distance: ~2300 Ly.
► Constellation: Cepheus.
► Magnitude: /
● Gear:
► Telescope: SW 200/1000 F5
► Mount: IOptron CEM60-ec
► Camera: QHY294C
► Autoguiding: guidescope 50mm + ZWO asi
120mm
► Other optic(s): TS coma corrrector Maxfield 0.95X
► Filter(s): Optolong L-extreme 2"
● Softwares:
► Acquisition: Nina
► Autoguiding: PHD guiding 2
► Preprocessing: PixInsight
► Processing: PixInsight
● Data acquisition:
► total ~28H, 10min/sub
► Gain: 1601
► Offset: 60
► Cooling: -5°C, -15°C
► Date(s): 09/09/2023, 10/09/2023, 11/07/2023, 11/09/2023, 16/07/2023, 18/07/2023, 25/06/2023, 27/07/2023, 28/05/2023 | 9 nights
This huge nebula in the northern constellation of Auriga is IC410 but it is best known for the two "tadpoles" near its centre.
This image is an integration of data shot with H, O and S filters and some RGB too on an ASI294MM camera behind a William Optics Zenithstar 103 telescope. All post-processing was carried out in PixInsight.
A combined image of data of my own (Tom M.) and from the Digitized Sky Survey II. The detail in the DSS-II images is incredible, data I obtained using a modest 71mm scope shows the yellow clouds of the Milky Way as a fuzzy cloudy mass with some stars resolved, combining my image with DSS-II the clouds are resolved into an innumerable field of stars. If you want to see just how many check out the full version of this image here:
www.flickr.com/photos/112501172@N04/29994548415/sizes/o/
In this image the major areas of nebulosity of the constellation Sagittarius can be seen, the Lagoon Nebula (M8) the bright reddish one in the center, the Trifid Nebula (M20) the red and blue one towards the upper left, and last but not least NGC 6559 which is the red/blue somewhat dimmer area of nebulosity below the Lagoon Nebula.
Another prominent feature('s) is the dust-lanes and yellow clouds of the central bulge of the Milky Way towards the right. There are also a couple Globular Clusters, NGC 6544 just below and to the right of the Lagoon Nebula, and NGC 6553 which is further to the bottom right appearing in this image as a fuzzy bright spot in the clouds of the Milky Way. Finally there is the open cluster M21 down and a little to the left of the Trifid Nebula.
Here's some links with info on the objects in this image.
Lagoon Nebula (M8): en.wikipedia.org/wiki/Lagoon_Nebula
Trifid Nebula (M20): en.wikipedia.org/wiki/Trifid_Nebula
NGC 6559: en.wikipedia.org/wiki/NGC_6559
NGC 6544: gclusters.altervista.org/cluster_4.php?ggc=NGC+6544
NGC 6553: gclusters.altervista.org/cluster_4.php?ggc=NGC+6553
M21: en.wikipedia.org/wiki/Messier_21
Technical Info:
DSS-II 24 Red 1 degree panels
Downloaded from: archive.eso.org/dss/dss
My Data:
8/6-7/2016 (wide-field)
No Filter: 12x300" Light @800ISO
Optolong L-Pro Filter: 12x300" @800ISO
20x Dark20x Bias
Camera: Canon 6D Hutech UV/IR Cutoff Mod no cooling
Scope: William Optics Star 71 Astrograph
Location: Los Padres National Forest, CA
Trifid Nebula Detail:
6/7/2014
15x 280" @640ISO Lights
10x Darks 15x Bias 15x Flats
Camera: Canon 6D (unmodified)
Scope: Celestron Edge HD 8
Focal Reducer: .7x Edge HD 8 FR
Location: Charlton Flats, CA
Lagoon Nebula Detail:
8/2/2014
7x Lights 600" @640ISO
10x Darks, Bias, Flats
Camera: Canon 6D (unmodified)
Filter: Hutech IDAS LPS
Scope: Celestron Edge HD 8
Focal Reducer: .7x Edge HD 8 FR
Location: Lockwood Valley, CA
Capture/Processing for all:
Capture/Guiding Software: Backyard EOS PHD/PHD2
Stacking: Deep Sky Stacker
Processing: Photoshop CC, Registar, Straton
The M81 and M82 galaxies are a pair of galaxies located in the constellation Ursa Major.
M81 (also called the Bode's Galaxy) is a spiral galaxy that lies approximately 11.8 million light years away from us, its size is approximately 45000 light years.
Its neighbor, M82 (The Cigar Galaxy) is an irregular galaxy at roughly the same distance away from Earth, this Galaxy measures about 18500 light years.
It took me 5 nights to take this picture. 3 nights with the LPRO Filter & 2 with the L Extreme filter (to get the Hydrogen Alpha / Red)
As it was the last possible target for me before the Galaxy Season, I decided to increase the exposure time and tried to get some Integrated Flux Nebula (IFN) but it was too faint and the light Pollution won the battle.
I'll try to get longer exposures next year (10min or maybe 15 min) as a last try to get this damn IFN.
Clear Skies to you all !
L-PRO :
Lights : 316 x 300 sec (26h20)
Darks : 60 ~ Offset: 100 ~ Flats: 100
L-Extreme :
Lights : 98 x 600 sec (16h20)
Darks : 60 ~ Offset: 100 ~ Flats: 100
Setup :
Camera : ZWO ASI 2600 MC
Main Scope : Skywatcher Esprit 100 ED
Guide Camera : ZWO ASI 120MM Mini
Guide Scope : ZWO Mini Guide Scope
Mount : Skywatcher EQ6-R
Filters : Optolong L-Extreme, Optolong L-Pro
Others : ZWO ASIAIR PRO
Taken with Espirit 150 refractor and 0.75 Riccardi reducer and Optolong L-Pro filter. A stack of 61 x 3 minutes exposures and choice of a fiery palette. Taken from Bortle 7 skies.
Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 200p + SW Coma Corrector 0.9x + EQ6-R-Pro + Long Perng 2" Dual Speed Low Profile Crayford Focuser + ZWO EAF
Equipo guía: guidescope 60/240 mm, camara guia ZWO ASI 120mm mini
*Gain 139, -20 º C, Ha 7nm 2" Optolong, 120x180"
*Gain 139, -20 º C, Oiii-CCD 6.5 nm 2" Optolong, 180x180"
100 Darks
100 Flats por filtro
Polar Align: SharpCap 3.2
Adquisición: SGP 3.1
Procesado: Pixinsight 1.8.8, PS
IC 443 (also known as the Jellyfish Nebula and Sharpless 248) is a galactic supernova remnant in the constellation Gemini. On the plane of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth (ref: Wikipedia).
Tech Specs: Williams Optics REDCAT51, ZWO ASI071mc-Pro running at -5C, Sky-Watcher EQ6R-Pro mount, Optolong L-eNhance filter (2”), 30 x 300 second (2.5 hours) exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, controlled with a ZWO ASIAir Pro running v1.5 Beta software. Image date: October 13, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.
This is 6.2 hours of data taken at Hawker, South Australia about 2 weeks apart, 4.7 hours of Astronomik 12nm Ha filter taken during a near full moon and the remainder taken between cloud breaks on a near new moon with no filter. I have previously posted UHC filter data used as colour with Ha as luminance, I think this is a little better. I haven't yet tried to incorporate the UHC filter data with the RGB as previously that wasn't a great result, but may try later. I took about 4 hours of Optolong L-Pro filter from metro Adelaide to add to this but I'm not impressed with what I got, and it was ruined by sensor dust that moved before I got flats dammit! Anyway, the main nebula name here is NGC6188, The Fighting Dragons in Ara, which isn't well known in the northern hemisphere. This just isn't as colourful or bright as some other targets, I'm not totally happy with this but realistically may not improve on it much. Calibration, registration, gradient removal, combining RGB and Ha as luminance and some work on star colour, saturation in Astro Pixel Processor, which is really good for this deep sky stuff, but not without issues. Final tweaking in Photoshop (which is much easier to edit photos in). Nikon D810A, Astronomik Ha filter, 600mm focal length f/4, Celestron CGEM II EQ mount, ZWO guide camera, APT camera control. RGB shots 10 minutes at ISO200, Ha shots were 10 minutes at ISO800.
www.starkeeper.it/IrisGhost.htm
What flowers in this field of dark star dust? The Iris Nebula. The striking blue color of the Iris Nebula is created by light from the bright star SAO 19158 reflecting off of a dense patch of normally dark dust. Not only is the star itself mostly blue, but blue light from the star is preferentially reflected by the dust -- the same affect that makes Earth's sky blue. The brown tint of the pervasive dust comes partly from photoluminescence -- dust converting ultraviolet radiation to red light. Cataloged as NGC 7023, the Iris Nebula is studied frequently because of the unusual prevalence there of Polycyclic Aromatic Hydrocarbons (PAHs), complex molecules that are also released on Earth during the incomplete combustion of wood fires. The bright blue portion of the Iris Nebula spans about six light years. The Iris Nebula, pictured above, lies about 1300 light years distant and can be found with a small telescope toward the constellation of Cepheus. [Text adapted from APOD]
Optics: Takahashi FSQ-106EDXIII F/5 530mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: Moravian G3-16200
Filters: Optolong LRGB 2"
Guiding Systems: SX Lodestar
Dates/Times: 1-2-3-5-29 July 2016 / 5-6 August 2016 / 7-8-27 September 2016
Location: Pragelato (Turin) - Italy
Exposure Details: L:R:G:B => 610:240:220:240 = > (61x10):(24x10):(22x10):(24x10) All Bin1 [num x minutes]
Cooling Details: -25 °C
Acquisition: Maxim DL/CCD, Voyager
Processing: PixInsight,PS CS5
Mean FWHM: 1.35 / 2.98
SQM-L: 20.12 / 21.89
Shot a batch of hydrogen alpha subs on the crescent nebula. Bright moon and misty conditions deterred me from trying anything else besides the Ha.. Hopefully get a chance to shoot other filters for this nebula to create some colour for the image, especially OIII to try and capture that faint blue 'envelope' that appears in OIII.
Looks okay in black n white h-alpha though so I thought i'd post it by itself.
ED8o - QHY163m - Optolong 7nm Ha filter. 5min subs x ~ 12 with darks.
Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 250pds + SW Coma Corrector 0.9x + EQ6-R-Pro + ZWO EAF + ZWO 7x2" EFW
Equipo guía: starguider 60/240 mm, ZWO ASI 120mm mini
*Gain 139, -25 º C, Ha 7nm 2" Optolong, 71x180"
*Gain 139, -25 º C, Oiii-CCD 6.5 nm 2" Optolong, 70x180"
*Gain 139, -25 º C, Sii-CCD 6.5 nm 2" Optolong, 70x180"
100 Darks
50 Flats por filtro
Polar Align: SharpCap 3.2
Adquisición: SGP 3.1
Procesado: Pixinsight 1.8.8, PS
Dedicated to the Love of my Life in her 41st Birthday!!!!
I worked on this one over several nights collecting data for the final photo from Aberaeron and Salisbury.
The Jellyfish Nebula (IC 443, Sharpless 248) is a supernova remnant located in the constellation Gemini. It lies approximately 5000 light years from Earth and can be found between the stars Mu and Eta Geminorum, at the foot of one of the celestial Twins.
The Jellyfish Nebula is a remnant of a supernova that occurred in the Milky Way between 3000 and 30000 years ago. The supernova event produced the nebula and a neutron star. The presence of the neutron star and the nebula’s location in a star forming region indicate that the remnant was created by a Type II supernova, one triggered by a rapid collapse and violent explosion of a star with a mass at least 8 times that of the Sun. The neutron star is moving away from the site at about 800000 km/h.
William Optics GT81
William Optics Flat 6AIII
ZWO ASI2600MC Pro
ZWO ASI Air Pro
Skywatcher HEQ 5 Pro
Optolong L-eXtreme filter
87 x 300s lights, 40 darks, 50 flats, 50 dark flats at gain 100 and cooled to -10C.
Stacked in DSS and processed in Starnet++, PS and LR
Empleando un procesado menos agresivo, y cuidando que las estrellas no se agranden.
Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 200p + SW Coma Corrector 0.9x +ZWO EAF + EQ6-R-Pro
Equipo guía: guidescope 60/240 mm, camara guia ZWO ASI 120mm mini
30-31/09/18
*Gain 101, -25º C, L 2" Svbony, 90 Lights x 120"
*Gain 101, -25º C, R-CCD 2" Svbony, 60 Lights x 120"
*Gain 101, -25º C, G-CCD 2" Svbony, 60 Lights x 120"
*Gain 101, -25º C, B-CCD 2" Svbony, 60 Lights x 120"
81 Darks
100 Flats
16/09/19
*Gain 139, -25º C, Ha 7nm 2" Optolong, 80 Lights x 180"
100 Darks
100 Flats
SGP 3, Pixinsight 1.8.6, PS
What is that bright star high in the Western sky after sunset? Say hello to Arcturus (a red giant star), also known as Alpha Boötis (the brightest star in the constellation Boötis). It is the brightest star in the northern celestial hemisphere. It has a visual magnitude of −0.04, and is the fourth brightest star in the night sky. The name Artcurus comes from the Greek meaning "keeper or guardian of the bear", which refers to the its position adjacent to the tail of the constellation Ursa Major (the Great Bear).
Distance to Earth: 36.66 light years
Magnitude: -0.04
Radius: 10.98 million mi
Surface temperature: 4,290 K
Constellation: Boötes
Spectral type: K1.5IIIFe-0.5
Coordinates: RA 14h 15m 40s | Dec +19° 10′ 56″
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eNhance filter (2”), 6 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: May 29, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
EQUIPO UTILIZADO
80 tomas de LUM 120 sg a bin 1x1 gain 55 temp -10
25 tomas RGB 150 sg bin 1x1 gain 55 temp -10
25 dark, FLATS, DARKFLATS
Cámara principal así 183 mm pro
Telescopio TS 80/385 triplete apod cf
Reductor de focal apd cf específico X0,80
Guiado con OAG zwo
Cámara de guiado qhy5/II c
Rueda de portafiltros ZWO 1;25
Enfocador RB FOCUS Merlín 3.0
Filtros Optolong LRGB 1,25
Montura eq6-R
Distribución de 12v
Controlado con mini pc minix windows 10pro
iPad 11 pro con RDP
Programa de captura SGP PRO versión 4
Programa de guiado PHD2
Programa de procesado y apilado pixinsght 1,8
*Ficha técnica:
Imaging telescope or lens: Orion ED80 F7.5
Imaging camera:QHY163M
Mount:Sky-Watcher HEQ5PRO
Guiding telescope or lens:Meade 8x50mm Finder/Guider
Guiding camera:Starlight Xpress Superstar
Software: Pleiades Astrophoto, S.L. PixInsight 1.8 , Astro Photography Tool , Stark Labs PHD 2.5 , Photoshop CS4
Filters: Optolong Blue 1.25" , Optolong Red 1.25" , Optolong Green 1.25" , Baader H-Alpha 1.25 7nm
Datas: 9 de Setembro de 2019
*Frames:
Optolong Blue 1.25": 17x120" -10C bin 2x2
Optolong Green 1.25": 16x120" -10C bin 2x2
Baader H-Alpha 1.25 7nm: 50x300" -10C bin 1x1
Optolong Lum 1.25": 40x300" -10C bin 1x1
Optolong Red 1.25": 19x120" -10C bin 2x2
Captura: 9.2 horas
Dark frames: ~15
HII region in Orion near Gemini. From right to left the largest Sh 254, Sh 257 with aside the little Sh 256, Sh 255 and, a little farther, the smallest Sh 258
Camera: Moravian G2 8300
Filters: 31mm unmounted Optolong
Optic: RC GSO 8" - Astro Physics telecompressor 0.67X
Mount: Ioptron CEM60 HP
Autoguider: Magzero QHY 5L II, OAG 9mm TS, Phd guiding
Frames: Ha 7nm 15X600 sec Bin1 - RGB: 6X600 sec each Bin2 -30°
Processing: Pixinsight, PS
The Heart and Soul Nebulae are a pair of bright emission nebulae in the constellation Cassiopeia. Both objects are located at a distance of about 7500 light years These objects glow in the light of ionized hydrogen.
La Jonquera - - Girona / Spain
Equipment used :
ZWO ASI1600MM Pro & ASI ZWO183MC Pro
ASKAR FRA400
24 x 900" Optolong L-eXtreme x3 vertical mosaic
20 x 1500" Optolong H-Alpha x3 vertical mosaic
20 x 1500" Optolong SII x3 vertical mosaic
20 x 1500" Optolong OIII x3 vertical mosaic
Skywatcher AZ-EQ6 PRO mount & SW AZ GTI
- Flats, Darks & Bias
Technical Information:
Telescope: AIRY APO 130T PrimaLuceLab
Mount: Paramount MyT - Software Bisque
Camera: QHYCCD QHY9
Filter: Optolong 36mm unmounted L-Pro, R, G, B and H-a 6nm
Frames: H-a:32x900s -- L-Pro:150x240s -- R:75x240s -- G:75x240s -- B:75x240s
Total Integration: 33 Hours
Software: SGP – TheSkyX – PHD2 – DSS – PixInsight – Adobe Photoshop 2022
Location: AstroAtlas Observatory - Noventa di Piave (Venice) 4 meter above sea level – ITALY
Environment Temperature: About 5°C
Relative Humidity: 89%
Date: 12.03.22 - 13.03.22 - 23.03.22 - 24.03.22 - 25.03.22 - 26.03.22 - 27.03.22
M51 - The Whirlpool Galaxy taken from the AstroAtlas Observatory situated in Noventa di Piave (ITALY).Acquired with Optolong H-aLRGB filters. Small galaxy for my equipment - The photo has been cropped.
I hope you like it!
Clear skies!
AstroBin: astrob.in/6e5jim/0/
NOTE: The image was acquired from a polluted sky with high humidity - Bortle 5.
#astrophotography #astronomy #astroatlas
The rather obscure emission nebula catalogued as Sharpless 2-261, at top, but commonly known as Lower’s Nebula after the father and son team of amateur astronomers, Harold and Charles Lower, who in 1939 built an 8-inch Schmidt camera astrograph, one of the first, and used red sensitive plates and red filters to record these kinds of red nebulas. They noted this object on their plates, in northern Orion. They were certainly pioneers of this type of filtered astrophotography.
At bottom is the small star cluster NGC 2169, also known as the X-Y Cluster or Number 37 Cluster as its two clumps of stars, just resolved here, resemble those letters or numbers with a little imagination at the eyepiece.
At bottom left is the small emission nebula Sh2-269. The larger fainter patch above it is Sh2-267. The small nebula at the left edge might be Sh2-266 but charts are unclear and contradictory.
This is a stack of 5 x 8-minute exposures unfiltered at ISO 800 with a stack of 6 x 10-minute exposures at ISO 1600 shot through an Optolong L-Enhance filter to bring out the nebulas, all with the old Hutech filter-modified Canon 5D MkII DSLR and the SharpStar HNT150 Hyperbolic Newtonian astrograph at f/2.8. What the Lowers would have given to have such technology in their day!
Taken with some haze in the sky toward the end of the shoot for the unfiltered shots, adding the star glows. Taken from home February 22, 2020.
[Version Française en haut / English version below]
--------------------- [Version Française] ---------------------
La Galaxie d'Andromède
Et voilà ! Depuis le temps que je voulais la faire au télescope celle là ! Et tant qu'à faire sur un temps de pose assez conséquent (près de 21h).
"Celle-là", c'est la galaxie d'Andromède, Messier 31, la grande jumelle de la voie lactée, la grande galaxie la plus proche de nous (d'autres sont plus proches, mais aussi plus petites). M31 est distante de "seulement" 2.54 millions d'années lumières (AL) (la lumière qui nous parvient est partie alors que l'espèce humaine en était à ses débuts : elle commençait à conceptualiser les choses et commençait à acquérir du savoir faire dans la taille des pierres. On voit où ça nous mène !
La galaxie d'Andromède a été répertoriée par Charles Messier comme 31ème objet de son catalogue des objets qui ne sont pas des comètes. Elle est connue depuis plus longtemps car visible à l'oeil nu par un bon ciel (sa magnitude est de 3.4), autrement dit part l'homme moderne qui commence à bien manquer de ciel noir et ne pourra bientôt plus réfléchir à sa position dans l'univers (vu qu'il ne le verra plus), les humains ont de tout temps pu observer cette grande tâche laiteuse depuis l'hémisphère nord, en automne, à l'est du W de Cassiopée. Elle est grande cette galaxie : 220000 AL de taille réelle pour une taille apparente de 6 diamètres lunaires. Elle contient environ 400 milliards d'étoiles !
Sur la photo, on voit qu'elle est traversée de large nuages sombres. Ce sont des nuages de poussières. De plus, on voit qu'elle contient de nombreuses nébuleuses comme c'est le cas dans notre galaxie. Elles apparaissent en rouge ou en bleu selon leur composition (bleu = oxygène / rouge = hydrogène bande alpha).
M31 possède de nombreuses galaxies satellites (une vingtaine) dont M33 (voir photo récente sur Flickr). Sur cette photo il y en a deux :
- au dessous de M31, on voit une assez grande tâche ovoïde. C'est M110, une galaxie elliptique située à 2.71 MAL et mesurant 17000 AL de grand diamètre.
- au dessus de M31, on voit une petite tâche très brillante. C'est M32, une galaxie naine elliptique située à 2.5 MAL et de 8000 AL de diamètre seulement.
Remarque : ma photo présente des étoiles avec des aigrettes dédoublées. La raison c'est que durant la session RVB, j'ai décalé la prise de vue après le retournement au méridien. J'aurais pu au traitement ne retenir que les étoiles de première partie de soirée mais j'ai oublié de le faire. Peut-être une petite amélioration en vue...
* Matériel :
Télescope Newton Skywatcher 150/750
Correcteur de coma
Monture Skywatcher AZ-EQ5
Capteur Canon 1200 D modifié (défiltré partiellement)
Filtre Optolong L-Enhance (sur 3 sessions).
Autoguidage Asi 120mm + Kepler 50/162 + Raspberry Pi3 + PhD Guiding
* Réglages :
800 iso ; poses espacées de 5 sec.
DOFs systématiquement refaits (Darks et Flats ; Offsets conservés) et constitués de Darks>35, Offsets=30, Flats>35
* sessions et temps d'exposition :
07/10/23 [RVB] : 121 brutes 60s retenues (sur 165) + 78/30/40 DOF - pas de filtre (spectre visible -> RVB)
07/10/23 [RVB] : 224 brutes 90s retenues (sur 254) + 146/30/40 DOF - pas de filtre (spectre visible -> RVB)
06/10/23 [Ha / OIII+Hb] : 305 brutes 90s retenues (sur 316) +146/30/35 DOF - L-Enhance (H-Alpha + H-Beta + O III -> HOO)
25/09/23 [Ha / OIII+Hb] : 191 brutes 90s retenues (sur 206) +35/30/56 DOF - L-Enhance (H-Alpha + H-Beta + O III -> HOO)
23/07/23 [Ha / OIII+Hb] : 13 brutes 180s retenues (sur 15) +120/30/30 DOF - L-Enhance (H-Alpha + H-Beta + O III -> HOO)
Soit un cumul total de 20h40 (dont 13h03 en Ha+HB+OIII et 7h37 en RVB) ce qui constitue mon nouveau record en temps d'exposition sur une même cible.
* Qualité du ciel : Excellente : la galaxie du triangle (M33, mag 6.27) était bien visible à l'œil nu 2 nuits sur 4. De même pour certains amas globulaires comme M13.
* Lune : pas de lune le 23/07/23 ; 72% première partie de nuit le 25/09/23 ; 48% milieu de nuit le 06/10/23 ; 36% fin de nuit le 07/10/23
* Traitement :
J'ai traité chaque session individuellement produisant une image Ha et une image OIII pour chaque session avec filtre, et une image RVB pour la dernière session (les sessions de 60s et 90s ayant été traitées indépendamment).
Toute la phase du prétraitement jusqu'à post-traitement des sessions Ha, OIII et RVB séparées a été faite sous Siril. Le traitement complet est le suivant : 1) prétraitement des brutes par les DOFs, 2) retrait de la trame horizontale pour chaque image, 3) extraction du gradient linéaire pour chaque image, 4) extraction Ha / OIII pour les sessions avec filtre 5) alignement des images, 6) empilement, 7) retrait de la trame sur l'image empilée (il en reste un peu), 8) retrait du gradient (non linéaire), 9) déconvolution (PSF des étoiles), 10) étalonnage des couleurs (d'après catalogue pour l'image RVB) sinon manuel, 11) étirement hyperbolique généralisé, 12) histogramme, 13) suppression du bruit vert.
Les images Ha de chaque session ont été alignées puis cumulées (moyenne avec rejet) pour n'en former qu'une. De même pour les images OIII. De là, une image couleur composite HOO (RVB=Ha-OIII-OIII) a été générée. Les images RVB empilées des sessions 60s et 90s ont été aussi alignées puis empilées pour ne former qu'une seule image RVB.
L'image HOO et l'image RVB ont été ensuite alignées entre elles sous Siril. Pour chacune de ces images alignées, j'ai généré une starless et un starmask avec Starnet V2.
A partir de là, j'ai fait l'assemblage des quatres images alignées (2 starless et 2 starmasks) sous Gimp (en travaillant avec plusieurs calques duplicant ces images pour faire ressortir tantôt les couleurs, tantôt les contrastes).
--------------------- [English version] ---------------------
The Andromeda Galaxy
Finally! I've wanted to capture this one with a telescope for a long time, and I did it with quite a long exposure time (almost 21 hours).
"This one" is the Andromeda Galaxy, Messier 31, the big sibling of the Milky Way, the closest big galaxy to us (there are closer galaxies, but they are smaller). M31 is "only" 2.54 million light-years away (the light we see from it left when humans were just starting to conceptualize things and acquire stonemasonry skills). You can spot it easily with the naked eye on a clear night (its magnitude is 3.4). In other words, modern humans, who are running out of dark skies and soon won't be able to contemplate their place in the universe (because they won't see it anymore), have been able to observe this large milky patch from the Northern Hemisphere, east of Cassiopeia's "W," during autumn. It's a big galaxy, measuring 220,000 light-years across in reality, with an apparent size equivalent to 6 lunar diameters. It contains around 400 billion stars!
In the photo, you can see that it's crisscrossed by large dark clouds. These are dust clouds. Furthermore, you can see numerous nebulae, just like in our own galaxy. They appear in red or blue depending on their composition (blue = oxygen / red = hydrogen alpha).
M31 has many satellite galaxies (around twenty), including M33 (see a recent photo on Flickr). In this photo, there are two of them:
- Below M31, you can see a fairly large oval-shaped patch. That's M110, an elliptical galaxy located 2.71 million light-years away and measuring 17,000 light-years in diameter.
- Above M31, you can see a small, very bright spot. That's M32, a dwarf elliptical galaxy situated 2.5 million light-years away, with a diameter of only 8,000 light-years.
Note: My photo shows stars with double diffraction spikes. The reason is that during the RVB session, I shifted the imaging after crossing the meridian. During processing, I could have chosen to only keep the stars from the first part of the evening, but I forgot to do so. Perhaps a small improvement for the future...
* Equipment:
Skywatcher 150/750 Newtonian Telescope
Coma Corrector
Skywatcher AZ-EQ5 Mount
Modified Canon 1200 D Camera (partially defiltered)
Optolong L-Enhance Filter (across 3 sessions)
Autoguiding with Asi 120mm + Kepler 50/162 + Raspberry Pi3 + PhD Guiding
* Settings:
ISO 800; 5-second spaced exposures.
Dark, Offset, and Flat Frames systematically recalibrated; Dark Frames > 35; Offset = 30; Flat Frames > 35
Sessions and Exposure Times:
- 07/10/23 [RGB]: 121 usable 60s light frames (out of 165) + 78/30/40 Calibration Frames (no filter - visible spectrum)
- 07/10/23 [RGB]: 224 usable 90s light frames (out of 254) + 146/30/40 Calibration Frames (no filter - visible spectrum)
- 06/10/23 [Ha / OIII+Hb]: 305 usable 90s light frames (out of 316) + 146/30/35 Calibration Frames (L-Enhance - H-Alpha + H-Beta + O III -> HOO)
- 25/09/23 [Ha / OIII+Hb]: 191 usable 90s light frames (out of 206) + 35/30/56 Calibration Frames (L-Enhance - H-Alpha + H-Beta + O III -> HOO)
- 23/07/23 [Ha / OIII+Hb]: 13 usable 180s light frames (out of 15) + 120/30/30 Calibration Frames (L-Enhance - H-Alpha + H-Beta + O III -> HOO)
This totals to approximately 20 hours and 40 minutes of exposure time (13 hours and 3 minutes in Ha+HB+OIII and 7 hours and 37 minutes in RGB), setting a new record for me in terms of exposure time on a single target.
* Sky Quality: Excellent - The Triangulum Galaxy (M33, mag 6.27) was clearly visible to the naked eye on 2 out of 4 nights. The same applies to some globular clusters like M13.
* Moon: No moon on 23/07/23; 72% illumination in the first part of the night on 25/09/23; 48% in the middle of the night on 06/10/23; 36% in the late night on 07/10/23
* Processing:
I processed each session individually, creating an Ha and an OIII image for each session with a filter, and an RGB image for the final session (the 60s and 90s sessions were processed separately).
The entire pre-processing to post-processing phase for Ha, OIII, and RGB sessions was done using Siril. The complete processing workflow is as follows: 1) Preprocessing of raw frames with Dark, Offset, and Flat Frames (calibration frames). 2) Removal of horizontal banding for each image. 3) Linear gradient extraction for each image. 4) Ha and OIII extraction for sessions with filters. 5) Alignment of images. 6) Stacking of aligned images. 7) Removal of residual horizontal banding from the stacked image. 8) Non-linear gradient removal. 9) Deconvolution (Point Spread Function of stars). 10) Color calibration, using a catalog for the RGB image or manual calibration. 11) Generalized hyperbolic stretching. 12) Histogram adjustment.
Green noise reduction.
The Ha images from each session were aligned and averaged with rejection to create a single Ha image. The same process was followed for the OIII images. From there, a Ha-OIII-OIII composite color image (RGB=Ha-OIII-OIII) was generated. The RGB images from the 60s and 90s sessions were also aligned and stacked to create a single RGB image.
The Ha-OIII-OIII composite and RGB images were then aligned with each other in Siril. For each of these aligned images, I generated a starless version and a starmask using Starnet V2.
From there, I assembled the four aligned images (2 starless and 2 starmasks) in Gimp, working with multiple layers to enhance both colors and contrasts at different points in the image.
Nebulosa de la Laguna y Nebulosa Trífida (Messier 8, izq. y Messier 20, dcha.)
La otra noche disparé unas tomas a estas dos nebulosas.
Se encuentran a 5000 y 5200 años luz de distancia de nosotros, ahí es nada. Estas nebulosas que ha captado mi cámara emitieron su luz hace 5000 años, da que pensar...
Espero que os gusten.
EXIF: 5 tomas de 4 minutos a ISO 12800, y 20 y pico tomas de 5 minutos a ISO 800, con la A7r fullspectrum. Tubo Skywatcher Ed80, 600mm F7.5, y filtro Optolong L-Enhace, de 2 pulgadas, telescopio Bresser Exos2 PMC8 wifi, con GOTO, de ExploreScientific, usando N.I.N.A. Procesado con SIRIl y Photoshop.
Espero que os guste.
This item is available for ordering as a poster, in its highest resolution at Etsy shop New Rendering Of Veil Nebula, Cygnus Loop
Veil Nebula 2-pane mosaic from Negev desert. During the last month two clear nights allowed me to collect data of this object using narrow 2-band Optolong filter and color CMOS camera.
The Veil nebula is the expanding remains of a star that exploded between 5,000 and 10,000 years ago in our Milky Way galaxy.
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.
Colorful smoke-like wisps of gas are all that remain visible of what was once a star some 20 times more massive than our sun. Prior to the explosion, a strong stellar wind (a stream of charged particles) from this star blew a large cavity or bubble in the surrounding area. The intertwined wisps of gas in the Veil Nebula result from the energy released as the fast-moving shock wave, or blast wave, from the ancient explosion plows into the edges or walls of this cavity. The blast wave initially heated the material to millions of degrees, but as the gas cools down again, it produces the brilliant glowing colors.
The nebula’s colors correspond to variations in the temperature and density of the glowing interstellar material. Blue, for example, arises in hotter gas that has more recently encountered the shock wave. Most of the red material denote cooler gas that collided with the blast wave even longer ago.
Although the supernova explosion occurred thousands of years ago, the speedy shock wave is still moving at 1.4 million miles per hour (2.3 million kilometers per hour). The shock wave is moving so fast that it could travel from Earth to the Moon in 15 minutes. It takes years, however, before this motion is even slightly visible to telescopes because the nebula is so far away.
The Pickering's Triangle area of the Veil Nebula was discovered photographically in 1904 by Williamina Fleming, but credit went to Edward Charles Pickering, the director of her observatory, as was the custom of the day.
QHY367c/FSQ130-ED/Mach1 CP4
Optolong L-eXtreme
2022: 24 June, 28 June
pane 1: 21x900s, pane 2: 21x900s
Credits and copyright: Leo Shatz
Text credits: NASA
Here is a view of the Crescent Nebula (NGC 6888, Sharpless 105) located in the constellation Cygnus. The Crescent Nebula is about 5,000 light years away from Earth and was formed by the central star shedding its outer layers. According to NASA, “Burning fuel at a prodigious rate and near the end of its stellar life this star should ultimately go out with a bang in a spectacular supernova explosion”.
Observation data: J2000.0 epoch
Right ascension: 20h 12m 7s
Declination: +38° 21.3′
Distance: 5,000 ly
Apparent magnitude (V): +7.4
Apparent dimensions (V): 18′ × 12′
Constellation: Cygnus
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eNhance filter (2”), 54 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: May 29, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
* Setup:
Telescope: Refractor Orion ED80
Focal Length: 600mm
Camera: QHY163M
Mount: SkyWatcher HEQ5 Pro
Filters: LRGB Optolong
*Exposure:
L: 2 hours (subs 300s) bin1x1
R: 0.5 hours (subs 120s) bin2x2
G: 0.5 hours (subs 120s) bin2x2
B: 0.5 hours (subs 120s) bin2x2
Total: 3.5 hours
The Heart Nebula (IC 1805) lies about 7,500 light years away from Earth in the Perseus Arm of the Galaxy in the constellation Cassiopeia. The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense red output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Melotte 15, contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass. The Heart Nebula is located adjacent to the Soul Nebula forming a view referred to as the Heart and Soul Nebula.
Tech Specs: Williams Optics REDCAT51, ZWO ASI071mc-Pro running at -5C, Sky-Watcher EQ6R-Pro mount, Optolong L-eNhance filter (2”), 24 x 300 second (2 hours) exposures combined with 12 x 300 (1 hour) second exposures from 2019, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, controlled with a ZWO ASIAir Pro running v1.5 Beta software. Image date: October 13, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.
Hi guys, here is Orion.
Telescope: SharpStar 150 f2,8
Guide Scope:Evoguide
Mount : Skywatcher HEQ5
Imaging camera: ZWO 2600MC
Guiding camera: ZWO 290 MC
Filters: NBZ Idas,Optolong Lpro
Plate solving: SGpro
Imaging software: Sgpro
Guiding software: PHD2
Processing software: Pixinsight
NBZ: 30X120s exposure@100 Gain
Lpro:60X120s exposure@100 Gain
Integration: 3 hrs