b33-262x30-g37-o200-qhy183c_-20C-lnh-85f5_6-v3

A full moon and Bortle 7-8 metro area conditions can't stop the Optolong L-eNhance filter. 131 minutes of 30 sec sub-images LiveStacked in SharpCap 3.2, QHY183c at -20C, Televue TV-85 at F/5.6.

It's been very cloudy lately, but the other night I managed to get almost 6 hours of imaging!! I took 4 hours on SH2-284 (Emission Nebula in Monoceros), until it disappeared behind a large tree and then I swapped to Leo's triplet for the remaining time.

This is SH2-284 imaged over 4 hours with the Optolong L-Ultimate 3nm dual-band filter (Ha, Oiii), FLT 132 at 910mm focal length (f/6.9) and ASI2600MC Pro. Pre and post-processed in PixInsight and Affinity Photo 2

More acquisition details in astrobin: astrob.in/z1yzuz/0/

Thanks for looking and clear skies!

An emission nebula in the constellation of Cygnus, lying about 5,600 light years away.

Boring techie bit:

Skywatcher Quattro 8" Newtonian Reflector steel tube with the f4 aplanatic coma corrector, Skywatcher EQ6 R pro mount, Altair Starwave 50mm guide scope, ZWO asi120mm guide camera mini, ZWO asi533mc pro cooled to -20c gain 110, Optolong L'enhance 2" filter, ZWO filter drawer, ZWO asiair plus.

180s exposures.

Best 90% of 50 light frames.

Darks, Flats, Dark Flats & Bias.

Stacked with DeepSkyStacker and processed in PixInsight & Affinity Photo.

This Is a Narrow band shot of Thors helmet using two filter's Ha Red colour and O3 Blue colour to get the colour photo with the B/W camera. A lot of detail has come out of using the filters as well. Slowly coming to terms with the world of filters one of the drawbacks I am not able to rotate the filter wheel without upsetting the balance of the mount. the shot needed to be rotated a few degrees to the right to square up the wings on the helmet.

As it was just two filters I took 110 shot with each filter to make up this shot Combined in the Pallet of Ha O3 O3 to get the colours you see here much like the pure colour shot from before.

a

QHY 183M -10c

QHYCFW 3 Filter wheel Seven ZWO 36mm unmounted astro filters.

Ha O3 110 shots each filter 5 min over 4 night.

MeLE Mini PC

Pegasus Astro Pocket Mini power box

Prima Luce Essato Focus

Optolong LeNhance filter,

Skywatcher 200 F4 PREMIUM PHOTO QUATTRO REFLECTOR OTA

Skywatcher F4 Aplanatic Coma Corrector

Skywatcher NEQ 6 Pro Hypertuned

SVbony 50MM Guide scope

QHY5L-II-M Guide camera

Guided PHD2, Nina

Pixinsight, Ps

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: Televue 102 f/7

Mount: Takahashi EM200 Temma 2M

Autoguider: camera Magzero 5m on SW 70/500, Phd guiding

Frames Ha 7nm: 24X600sec RGB: 5X600sec each Bin 1

Processing: Pixinsight, Photoshop

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: RC GSO 8" f/8

Mount: Takahashi EM200 Temma 2M

Autoguider: Magzero QHY 5L II, OAG 9mm TS, Phd guiding

Frames: L: 13x600 sec - RGB: 6x600 sec each, bin 2 -35°

Processing: Pixinsight, Photoshop

Pubblicazioni: Coelum gennaio '19, Nuovo Orione marzo '19

Containing around 500,000 stars M3 (Messier 3) can be found in the constellation of Canes Venatici. Given it's distance of 34,000 light years away, surprisingly you should be able to pick out M3 with a pair of 10x50 binoculars from say a bortle 6 or 7 sky.

Data gathered at Kielder Forest, UK.

Boring Techie bit:

Telescope: Askar FRA400

Mount: EQ6r pro

Camera: ZWO 533mc pro

Filter: Optolong UV/IR.

Guiding Altair Starwave 50mm, ZWO 120mm mini & asiair+.

60 light frames of 120 seconds each.

Stacked with darks, flats, dark flats using WBPP in PixInsight.

Processed using Graxpert, StarNet2 & PixInsight & Affinity Photo.

Foto lograda sumando los datos de 2 equipos distintos (14 h de exposición Total):

1) ASI1600MM-pro + SW Esprit 100 + NEQ6pro rowan mod + optolong LRGB filters. Guide: guidescope 60mm and QHY5L II M – 68 x 3 min L, 20 x 3 min R, 20 x 3 min G, 19 x 3 min B. 100 flats per filter, 100 darks, gain 100: Capturado por Juan Filas

2) Equipo Principal: NIKON D7500 + SW Explorer 200p + SW Coma Corrector 0.9x + EQ6-R-Pro + ZWO EAF

Equipo guía: guidescope 60/240 mm, camara guia ZWO ASI 120mm mini

ISO 800, 154 x 180" Lights

100 Darks

100 Flats

85 Bias

Polar Align: SharpCap 3.2

Adquisición: SGP 3.1

Capturado por Ariel Cappelletti

Procesado de Imagen: Juan Filas / Ariel Cappelletti

Capturado en Cielo clase Bortle 2, desde Observatorio la Banderita, La Pampa, Argentina.

Gracias Especiales a Leonardo Julio (www.astronomiapampeana.com.ar) por la invitación tanto a Juan como a mì para ir al Observatorio.

-------------------------------------

Image achieved by the addittion of data from to different equipments (14 h of total exposure):

1) ASI1600MM-pro + SW Esprit 100 + NEQ6pro rowan mod + optolong LRGB filters. Guide: guidescope 60mm and QHY5L II M – 68 x 3 min L, 20 x 3 min R, 20 x 3 min G, 19 x 3 min B. 100 flats per filter, 100 darks, gain 100: Captured by Juan Filas

2) Main Equipment: NIKON D7500 + SW Explorer 200p + SW Coma Corrector 0.9x + EQ6-R-Pro + ZWO EAF

Guiding Equipment: guidescope 60/240 mm, ZWO ASI 120mm mini

ISO 800, 154 x 180" Lights

100 Darks

100 Flats

85 Bias

Polar Align: SharpCap 3.2

Acquisition: SGP 3.1

Captured by Ariel Cappelletti

Image Processing By Juan Filas / Ariel Cappelletti

Taken under skies Bortle 2, from Observatorio La Banderita, La Pampa, Argentina, special thanks to Leonardo Julio for the invitation to Juan and me to travel to La Banderita (www.astronomiapampeana.com.ar).

Redcat51

AZ-EQ5

ZWO ASI533MC + Optolong L-eXtreme

34x480" lights

Calibrated with dark and bias frames

Nebulosity4

Guiding with ZWO ASI120MC-S + William Optics UniGuide 32mm + PHD2

PixInsight

Photoshop CC

Bortle 5

Driveway, Cairns, Australia

camera: ZWO ASI6200MM Pro with EFW 7x2"

filters: Optolong LRGB and Chroma 3-nm Ha/O3

telescope: TEC 140 f/7

mount: 10Micron GM2000 QCI

guider: ZWO ASI120 mini on 50-mm f/4 guidescope

exposure: L 31x3min (1x1) + RGB 20x2min + Ha 26x20min + O3 20x20min (all 2x2)

location: Les Granges, 900 m (Hautes Alpes, France)

software: TheSkyX Pro, CCD Commander, Pixinsight, PS CC

date: 11 Jun - 22 Sep 2022

Je vous présente la nébuleuse de l'étoile flamboyante (IC405) ceci est une première version. Le traitement ne me satisfait pas pleinement. Nébuleuse située dans la constellation du cocher.

Matériel :

Lunette Skywatcher Equinox 80ED

Monture Orion Atlas EQG

Caméra Omégon Vetec533 C

Filtre optolong L-PRO

Réducteur de focale 0.8

Guidage:

Chercheur 9X50

Caméra QHY5Lii

Logiciel de prise de vue:

NINA + PHD2

Image:

120X300 secondes soit 10H de poses.

35 DOF

Traitement:

SIRIL + Photoshop

#Omegon #Optolong #astroshop #astrophoto #astronomie #astrophotography #astronomy

This is with my home setup -- Celestron Edge HD 925 with ZWO ASI120MM camera, 3x Barlow, and Optolong RGB filters. I wanted to see if I could keep Europa and its shadow looking decent while shooting with a mono camera. To do this, I limited the RGB SER files to 12 seconds and took each set in under a minute. After stacking in AutoStakkert and doing some sharpening in PixInsight, I used WinJUPOS to derotate the frames so I could check the resulting RGB images for color distortions around the moon or its shadow. Seeing that they weren't discernible, I stacked and derotated four RGB images from 0527 to 0531 UT in WinJUPOS and tweaked the result a little in PixInsight and Photoshop.

Europa is visible just below and a bit to the right of its shadow. Even though the seeing was better at this time compared to my previous image (see flic.kr/p/2pfGTKC ), I still couldn't get any detail on it. This is from my backyard in Long Beach, CA.

lights-110*300s- 9.1 hrs.

Camera used, zwo asi2600MC pro with Optolong L extreme filter. It was taken with a SharpStar 61 telescope @ 270mm. Processed in Pixinsight and Lightroom.

——— STRUMENTAZIONE ———

Telescopio: Skywatcher 200/800 Wide Photo

Camera: Zwo Asi 294 mm pro monocromatica

Montatura: Skywatcher AZ-EQ6

Autoguida: 60mm UltraGuide Artesky con zwo asi 224mc

Correttore di coma: aplanatico Skywatcher f4

Focheggiatore motorizzato Zwo Eaf

Ruota portafiltri Zwo Efw

Filtri: Optolong 3nm Ha O3 S2

Software d'acquisizione Sgpro

————— FOTO ————

temp 0 con dark, flat e darkflat

HA 60 x 300s

O3 84 x 300s

S2 48 x 300s

————— ELABORAZIONE ———

Pixinsight

Photoshop

Canon 600D Baader szűrővel

Tamron SP 150-600mm f/5-6.3 Di VC USD G2

OPTOLONG L-eNhance CCD-szűrő (EOS clip APS-C)

SkyWatcher Star Adventurer mechanika

Manfrotto MT055XPRO3 alumínium állvány

32 mm-es 1,25" keresőtávcső

Lacerta MGEN-II Stand Alone AutoGuider

Fotó:

Dátum / idő: 2022-01-24 18:27:08

Expoziciós idő:

23x120 sec

10x20sec

10x10x10 korrekciós képek

F-szám: f/6.3

Fókusztávolság: 500 mm

Szoftver:

Deep Sky Stacker

Adobe Photoshop

* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: QHY163M

Mount: Veronica CEM

Filters: LRGB Optolong and H-Alpha Baader

*Exposure:

L: 2.8 hours (subs 180s) bin1x1

Ha: 4.2 hours (subs 300s) bin1x1

R: 0.5 min. (subs 60s) bin2x2

G: 0.5 min. (subs 60s) bin2x2

B: 0.5 min. (subs 60s) bin2x2

Total: 8.5 hours

Processing an old dataset that I didn't post (2022/08/01)

---Photo details----

Stacks RGB: 57x2min

Darks : 100

Flats: 100

Exposure Time : 1h54min

Stack program : PixInsight

---Photo scope---

Camera : ZWO ASI2600MC PRO

CCD Temperature : -10C

Filter(s) used: Optolong L-Pro

Tube : Takahashi FSQ-106 EDX4

Field flattener / Reducer : -

Effective focal length : 530 mm

Effective aperture : F/5

---Guide scope---

Camera : ASI Mini guider

Guide exposure : 2 sec

---Mount and other stuff---

Mount : Skywatcher AZ-EQ-6 GT

---Processing details----

NINA for acquisition, controlling the following:

- ASTAP (plate solving)

- PHD2 (guiding)

- Stellarium

PixInsight : stacking, alignment, background extraction, histogram manipulation

Lightroom for final touchups

Topaz Denoise for a last processing step

* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: QHY163M

Mount: Veronica CEM

Filters: LRGB Optolong and H-Alpha Baader

*Exposure:

L: 1.15 hours (subs 180s) bin1x1

Ha: 3.7 hours (subs 300s) bin1x1

R: 10 min. (subs 60s) bin1x1

G: 10 min. (subs 60s) bin1x1

B: 10 min. (subs 60s) bin1x1

Total: 5.35 hours

Messier 25, is an open cluster of stars in the southern constellation of Sagittarius. The first recorded observation of this cluster was made by Philippe Loys de Chéseaux in 1745 and it was included in Charles Messier's list of nebulous objects in 1764. M25 is at a distance of about 2,000 light-years away from Earth.

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: Televue 102 f/7

Mount: Ioptron CEM60 HP

Autoguider: camera Magzero 5m on SW 70/500, Phd guiding

Frames: RGB: 3X420sec each - Bin1 -20°

Processing: Pixinsight, Maxim DL, Photoshop

Still pretty cloudy at night, but consoling myself with the discovery of data I had forgotten about, four hours on the Heart and Soul Nebulae, IC1805 and IC1848 respectively. They are emission nebulae, star forming regions in the Perseus Arm of the Milky Way Galaxy, located roughly 7000 light years away, the Heart is about 13% further away than the Soul.

This image is a 4 hour calibrated integration of 180s sub-exposures taken over three nights at the beginning of October. I imaged these around the same time last year with the same setup but I think this result is a marked improvement.

Samyang 135mm Lens working at f/2.8

ZWO ASI533MC Pro

Optolong L-Extreme F2 Filter

Dark nebulae are large clouds of gas and dust and among the densest in the universe. They're so dense that they completely absorb all visible light — including nearby stars. Dark nebulae are sometimes referred to as 'holes in the sky' but in reality, there are stars forming inside their dense clouds.

Telescope: Orion EON 130mm Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-Extreme

Site: Elk Grove, California, USA

Calibration Files: None

Guiding: ZWO ASI 174mm mini/Orion 60mm Guidescope/PHD2

No of Frames: 69

Sub Exposure Time: 240 sec

Integration Time: 4h 36m

Bortle Zone: Class 6

Software: Adobe Photoshop, Siril, DxO Image Science NIK Collection, Nikita Misiura StarNet

Date Taken: July 24 & 28, 2022

My first attempt at a mosaic (where you create several images and stitch them together to get a larger field of view in one larger image). This is a mosaic of four 40 minute calibrated integrations of 2 minute exposures. Each image is about 12 degrees on a side creating a final image that reveals most of the constellation Cygnus, The Swan. Many well known deep sky objects are visible including the North American Nebula , The Pelican Nebula, the Veil Supernova Remnant, all the Nebulosity around Sadr including the Crescent Nebula and the Tulip Nebula, and several more objects...

The exposures were taken with a Nikkor 50mm Lens working at f/2.8, attached to a ZWO ASI533MC Pro Camera. An Optolong L-Ultimate narrowband filter was also used, which goes a long way to combat the Bortle 8 light pollution of Toronto. Everything was mounted on a ZWO AM5 and controlled by the ASI Air Plus. The exposures were guided. Images were processed in SIRIL and PixInsight

I'm really pleased with this as a first attempt, it certainly can be tweaked and processes further - when I have time...

Canon 600D Baader szűrővel

Tamron SP 150-600mm f/5-6.3 Di VC USD G2

OPTOLONG L-eNhance CCD-szűrő (EOS clip APS-C)

SkyWatcher Star Adventurer mechanika

Manfrotto MT055XPRO3 alumínium állvány

32 mm-es 1,25" keresőtávcső

Lacerta MGEN-II Stand Alone AutoGuider

Fotó:

Dátum / idő: 2022-01-24 02-09

Expoziciós idő:

41x120 sec

10x20sec

10x10x10 korrekciós képek

F-szám: f/6.3

Fókusztávolság: 500 mm

Szoftver:

Deep Sky Stacker

StarNet++ v2.0.2

Adobe Photoshop

Description: I developed this image of the North American Nebula NGC 700 from 60x300s subs or 5.0 hours of total exposure time. I used the Optolong L-eXtreme Dual Bandpass Light Pollution Filter. It has two 7nm pass bands centered on the H-alpha and OIII wavelengths. With a one-shot color (OSC) camera and an L-eXtreme filter combination the red signal from the H-alpha tends to dominate. In the nonlinear postprocessing phase I applied Histogram Transformation, Local Histogram Equalization and Curves Transformation in small doses in multiple passes.

Date / Location: 20, 25, 26 June 2022 / Washington D.C.

Equipment:

Scope: WO Zenith Star 81mm f/6.9 with WO 6AIII Flattener/Focal Reducer x0.8

OSC Camera: ZWO ASI 2600 MC Pro at 100 Gain and 50 Offset

Mount: iOptron GEM28-EC

Guide Scope: ZWO ASI 30mm f/4

Guide Camera: ZWO ASI 120mm mini

Light Pollution Filter: Optolong L-eXtreme Dual Bandpass

Processing Software: Pixinsight

Processing Steps:

Preprocessing: I preprocessed 60x300s subs (= 5.0 hours) in Pixinsight to get an integrated image using the following process steps: Image Calibration > Cosmetic Correction > Subframe Selector > Debayer > Select Reference Star and Star Align > Image Integration.

Linear Postprocessing: Dynamic Crop > Dynamic Background Extractor (both subtraction to remove light pollution gradients and division for flat field corrections) > Background Neutralization > Color Calibration.

Nonlinear Postprocessing and additional steps: Histogram Transformation > Noise Xterminator > Histogram Transformation (small doses in multiple passes) > Local Histogram Equalization > Curves Transformation (small doses in multiple passes).

ngc6960 - Part of veil Nebula

Scope: Orion Astrograph 8" f3.9

Camera: ZWO ASI 533mcpro

Filter: Optolong L-eNhance

Exposure: 49 x 120s

Gain/Offset: 100/10

Bortle Sky: 4/5

Process SW: PixInsight

La Nebulosa Nord America (anche nota con le sigle NGC 7000 e C 20) è una nebulosa a emissione visibile nella costellazione del Cigno, vicino a Deneb (la coda del cigno e la sua stella più brillante). La forma della nebulosa disegna il continente nordamericano, soprattutto la costa est, tra il Golfo del Messico e la Florida.

La scoperta della Nebulosa Nord America è attribuita all'astronomo William Herschel. Essa costituisce assieme alla vicina Nebulosa Pellicano un unico complesso nebuloso, situato a circa 1960 anni luce, in cui è attiva la formazione stellare, come è testimoniato dalla presenza di diversi oggetti stellari giovani e oggetti HH; questi fenomeni riguardano principalmente stelle di piccola e media massa. ( Wikipedia)

Riprese del 28 giugno 2022 da Mogoro - Sardegna - Italia

24 light x 120" 29 Flat 39 Dark

Telescopi Di Acquisizione

Celestron C11

Camere Di Acquisizione

ZWO ASI2600MC Pro

Montature

Sky-Watcher EQ6-R Pro

Filtri

Optolong L-Pro 2"

Accessori

Starizona HyperStar 11 v3 (HS3-C11)

Software

PixInsight

Telescopi Di Guida

Takahashi FC-60 CB

Camere Di Guida

ZWO ASI224MC

www.starkeeper.it/Sh2-155Wide.htm

This colorful skyscape spans about four full moons (2 degrees) across nebula rich starfields along the plane of our Milky Way Galaxy in the royal northern constellation Cepheus. Near the edge of the region's massive molecular cloud some 2,400 light-years away, bright reddish emission region Sharpless (Sh) 155 lies at the center, also known as the Cave Nebula. About 10 light-years across the cosmic cave's bright rims of gas are ionized by ultraviolet light from hot young stars. Dusty blue reflection nebulae also abound on the interstellar canvas cut by dense obscuring clouds of dust. The long core of the Lynds Dark Nebula (LDN) 1210 anchors the scene at right. Astronomical explorations have revealed other dramatic signs of star formation, including the bright red fleck of Herbig-Haro (HH) 168. Directly below the bright Cave Nebula, the Herbig-Haro object emission is generated by energetic jets from a newborn star. [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: 24-27 September 2016 / 03 October 2016

Location: Pragelato (Turin) - Italy

Exposure Details: L:R:G:B => 360:110:180:155 = > (72x5):(22x5):(36x5):(31x5) All Bin1 [num x minutes]

Cooling Details: -25 °C

Acquisition: Maxim DL/CCD, Voyager

Processing: CCDStack2+, PixInsight, PS CS5

Mean FWHM: 2.34 / 3.18

SQM-L: 19.71 / 20.04

Captured from my backyard Observatory in Fremont Michigan over 3 nights July 2016 using the new QHY16200 Mono CCD, an exciting new feature of the QHY16200 is the development of the 7 Position Filter Wheel which will be fitted to my sample, time and weather permitting I hope to be able to capture this beautiful object with other Narrowband filters.

Lying at a distance of approximately 1470 Light Years from us The Eastern Veil Nebula or otherwise known as NGC 6992 is part of the much larger Cygnus Loop which is a supernova remnant.

The expanding cloud of diverse elements created in the most powerful of explosions; a supernova.

As a Massive star nears the end of its life, it runs out of hydrogen fuel and begins fusing helium. After exhausting its supply of helium it begins to fuse heavier elements until finally, the star's core can no longer exert enough outward pressure and it collapses. A shock wave rebounds through the star so fierce that the star is shredded and leaves behind a small but extremely dense body; either a neutron star or a black hole.

Technical Information

Location: DownUnderObservatory, Fremont, MI

Captured July 5, 8, 11th 2016

Size: 4540x3630 pixels

Total integration Time 5.1 Hours

QHY16200A monochrome CCD cooled to -20C

QHYOAG-M Off Axis Guider

LRGB 160 min, 4 x 10 min each 1x1

H-Alpha 150 min, 10 x 15 min 1x1

Filters by Optolong

Astro-Tech AT12RC with AP 2.7" Reducer @F6.2

Paramount GT-1100S German Equatorial Mount

Image Acquisition Maxim DL

Pre Processing Pixinsight

Post Processing Photoshop CS6

Equipment:

AT60ED

ZWO ASI294MM Pro

Optolong 3nm filters

Ha: 81x300s

Sii: 71x300s

Oiii: 60x300s

Bortle 7 location

Astrobin: www.astrobin.com/hhe9l3/E/

NGC 4565 the Needle Galaxy

NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices. It lies close to the North Galactic Pole and has a visual magnitude of approximately 10. It is known as the Needle Galaxy for its narrow profile. First recorded in 1785 by William Herschel, it is a prominent example of an edge-on spiral galaxy.

NGC 4565 is a giant spiral galaxy more luminous than the Andromeda Galaxy. Much speculation exists in literature as to the nature of the central bulge. In the absence of clear-cut dynamical data on the motions of stars in the bulge, the photometric data alone cannot adjudge among various options put forth. However, its exponential shape suggested that it is a barred spiral galaxy. Studies with the help of the Spitzer Space Telescope not only confirmed the presence of a central bar but also showed a pseudobulge within it as well as an inner ring.

NGC 4565 has at least two satellite galaxies, one of which is interacting with it. It has a population of roughly 240 globular clusters, more than the Milky Way.

This edge-on galaxy exhibits a slightly warped and extended disk under deep optical surveys- likely due to ongoing interactions with neighboring satellite galaxies or other galaxies in the Coma I group. (Wikipedia.org)

Technical Information for Image

Telescope: William Optics Zenithstar 81 Refractor

Mount: iOptron CEM25P

Imaging Camera: ZWO ASI294MC Pro Gain 120 -5C

Filter: Optolong L-Pro

Guiding: William Optics 50mm, 200mm FL, ASI290MC camera

Exposures: 42 x 180s each Bin 1x1

Capture: ASIAIR Pro

Guiding: ASIAIR Pro through ASI290MC camera

Polar Alignment: ASIAIR Pro

Site: Pinyon Pines, CA USA, Bortle 4

Processing: Pixinsight with Touch up in Corel PaintShop Pro.

NGC 2237 Rosette Nebula

Unlike my recent version, this time I developed the shot in a natural color scheme.

Scope: Lacerta APO 72/432

Mount: Vixen Sphinx

Camera: Nikon D5500a

Filter: Optolong L-Enhance

18x 2 min., ISO 1600

Veil Nebula (NGC 6992)

La Jonquera - Girona - Spain - July 2020

4x1500" ZWO ASI183MC PRO & Askar FRA400mm

Optolong 2" L-eXtreme

Sky Watcher EQ6 Mount

Guide camera ZWO ASI 120MM

Calibrated, stacked and processed with Pixinsight, and final tweaks with Lightroom

www.instagram.com/astrometbcn/

Markarian's Chain is name for a string of galaxies in the Virgo area. They are about 50-55 million light-years away. The 2 interacting galaxies in the middle (NGC 4438, NGC 4435) are known as the "The Eyes", and they are about 100,000 light-years apart.

They are believed to have come within about 16,000 light years of each other some 100 million years ago, which resulted in gravitational tides from the encounter ripping away material – stars, gas and dust – from NGC 4438 and removing most of the dust and gas from NGC 4435 and reducing its mass in the process. The bigger NGC 4438 was able to hold on to a good portion of the material torn out in the encounter, while much of the material from NGC 4435 was lost.

19th century observer L. S. Copeland named the pair the Eyes Galaxies. In medium-sized telescopes, the galaxies’ bright oval cores look like a pair of eyes glowing in the dark.

Esprit 120mm, FL 840mm

QHY268M camera, Optolong RGBL filters

Sky-Watcher EQ6Rpro mount

7 hr 10 min integration.

Looks like Xenomorph? ;)

Imaged in Hailuoto, Finland.

Bortle 4-5 sky

Gear used:

Sky-Watcher HEQ5 PRO

ZWO ASI 533 MC Pro

Canon 400mm f5.6

ZWO mini guider

Optolong L-eNhance 2"

ZWO ASIAIR Plus

ASI 533 MC PRO- Nikon 180 f2.8--optolong Extreme filter

The famous and fabulous Heart Nebula in Cassiopeia dominates this frame but my target was actually the very faint supernova remnant (SNR) HB3 visible as wisply blue and red tendrils in the lower right quadrant of the frame. This widefield shot was taken with a William Optics Redcat51 telescope and an ASI2600MC Pro camera. It is an integration of over 20 hours data shot with an Optolong L-eXtreme filter and a further 6 hours with a UV-IR block. The SNR is much fainter than I had hoped and the low altitude above the Northern horizon reached by these nebulae from my low latitude location in Thailand may be a factor. All post-processing was carried out in PixInsight.

Taken from my Bortle 7 skies in Sydney Australia. Taken with Espirit 150 refractor, ASI2600MC camera and Optolong filter. Image consists of 72 X 3 minutes livestacked and calibrated on the fly in SharpCap Pro.

——— STRUMENTAZIONE ———

Telescopio: Askar fma 135mm

Camera: Zwo Asi 294 mc pro

Montatura: Skywatcher AZ-EQ5

Autoguida: Zwo mini guide con zwo asi 224mc

Filtro Optolong L-Ultimate

Software d'acquisizione Sgpro

————— FOTO ————

temp -10 con dark, flat e darkflat

RGB 31 x 300s

————— ELABORAZIONE ———

Pixinsight

Photoshop

One of my first target with a One Shot Color Camera. I wasted one night before that because of a bad focus, but the second night was the good one.

It's also the first time I try 3 min Exposures, and i'm very pleased with the Result.

My Canon Eos 60D do the job, but my 533MC is on another level!!

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 Star Adventurer

Filter : Optolong L-Extreme

Others : ZWO ASIAIR PRO

Lights : 60 x 180 sec

Darks : 60 ~ Flats: 100 ~ Bias: 100

I have photographed the Heart Nebula before, and was always curious and interested in the little appendix in the corner. It can easily be overlooked when looking at the much larger and impressive details of the Heart Nebula (see flic.kr/p/2qgwVE8). This time, I decided to spend some quality time imaging NGC896; I love the intricate patterns of dark dust clouds interspersed with brighter regions full of young stars.

In total, I've managed to acquire 27 hours of narrowband data, with both the Optolong L-Ultimate (3nm Ha & Oiii) and with the Antlia ALP-T 5nm Ha & Oiii filters. I used the ZWO ASI2600MC Pro camera, on an AM5 mount with ASIAir Plus. Processed with PixInsight + Affinity Photo 2.

This is the Starless SHO palette colours. Please see the HOO with stars here: flic.kr/p/2qg6dbf

More acquisition details in Astrobin: astrob.in/cf11hv/D/

I hope you like it and perhaps be inspired to spend some time imaging and/or admiring this somewhat overlooked but beautiful nebula.

Thanks for looking.

Clear Skies

Eduardo

===== From Wikipedia ====

The Fish Head Nebula, or the Northern Bear Nebula, is part of a large star forming system of gas and dust located along the Perseus spiral arm of the Milky Way. The nebula is located in the Constellation Cassiopeia, approximately 6,000 light-years from Earth and is adjacent to the much larger Heart Nebula. The brighter region of the nebula is designated NGC 896 and is the home to many young and large stars. These stars radiate high amounts of ultraviolet light. This UV radiation excites the surrounding gas and causes it to shine at a high brightness.

This is 2 hrs of 3 minute sub-images taken on Sep 26, 2021. Taken from a metro area with a QHY183c at -15C, an Optolong L-eNhance filter, an Astro-Tech AT60ED at F/4.8 and acquired and stacked in SharpCap 3.2 LiveStacking with dark substraction.

Die nächste Nebelformation im Sternbild Schwan; der Nordamerika- & der Pelikannebel. Heute aber etwas zur Fototechnik.

Die Aufnahme zeigt ein Halpha-Rot, Grün, OIII-Blau Komposit. Hierzu wurden RGB-Aufnahmen und Duo-Schmalband gemischt. Effekt ist die Verstärkung feiner Nebelstrukturen sowie kleine feine Sterne. Hoffe es gefällt euch?

The next huge area of nebulosity in the constellation Cygnus; the Northamerica & Pelicane nebula. Today a few words to the photography method.

This capture shows an Halpha-Red, Green, OIII-Blue composite. For this RGB captures were mixed with duonarrowband captures. This enhances areas of dim nebulosity and caused small pinpoint stars.

Scope: WilliamOptics Spacecat 51 f4,9

Cam: Nikon D810 astrocool CentralDS

Filter: Hutech IDAS LPS D1 & Optolong L-eEnhace

Mount: Skywatcher EQM35 Pro

Exif: 20x300 sec. RGB ISO 1600, 10x420 sec ISO 1250; Temp. -10°C

Process: APP, Photoshop, Lightroom, Topaz DeNoise AI

The M81 and M82 Galaxies in Ursa Major at 400mm.

This galaxy-rich region of the constellation Ursa Major repeatedly calls my name each spring, and this year was no different.

In this annotated image, you'll notice Bode's Galaxy (a spiral galaxy) and the Cigar Galaxy (an Irregular, starburst galaxy) along with some other smaller galaxies in the area.

This photo uses 193 x 2-minute exposures using the Celestron RASA 8 F/2 Astrograph, with a One-Shot-Color camera.

Much more info: astrobackyard.com/m81-and-m82-galaxies/

[English version : just ask me for an english version ; I'll try to do it ASAP]

La nébuleuse du cœur (IC 1805) et la nébuleuse de l'âme (IC 1848)

Astrométrie : nova.astrometry.net/annotated_full/8326464

Ces deux nébuleuses se trouvent dans la constellation de Cassiopée, le W fait d'étoiles au nord.

La nébuleuse du coeur, à droite sur la photo est une nébuleuse en émission (ses gaz échauffés par les étoiles voisines, en l'occurrence celles de l'amas Melotte 15 qui se situe au cœur de cette nébuleuse (et que l'on voit sur la photo). Elle se situe à 6500 années lumières (AL) de nous (sa lumière est partie à l'époque du prédynastique ancien en Egypte) et mesure 200 AL de diamètre. Sa couleur rouge vient de l'hydrogène, mais elle a aussi à l'intérieur de sa couronne une coloration bleue (peu distinguable sur la photo ; je ferai un traitement adapté permettant de faire ressortir ces couleurs) venant de l'oxygène. Sa forme en couronne (en coeur) évidée en son centre est due aux vents stellaires repoussant les gaz vers l'extérieur. L'amas ouvert en son centre, Melotte 15, contient quelques très grosses étoiles faisant plus de 50 fois la masse du soleil.

La nébuleuse de l'âme se trouve à la même distance et a une dimension d'environ 200x100 AL. C'est aussi une nébuleuse en émission qui contient également un amas ouvert en son centre.

Ces deux objets peuvent être observés aux jumelles.

Côté technique, elle résulte de 90 poses seulement car la constellation a fini par rejoindre le toit de mon garage, me faisant perdre 36 poses (avec un bout de toit de garage). Chaque pose est de 60 sec (donc un cumul d'1h30) faite à 1600 iso avec un Canon 1200 D dp + filtre Optolong L-Enhance + objectif Samyang 135 f/1.4 @f/2.8. J'ai également fait 156/50/42 DOF (oui ... 156, parce que je suis allé me coucher laissant l'appareil faire ses darks ... au moins ils sont propres !). Le suivi était assuré par une monture Skywatcher Star Adventurer.

Pour le traitement, j'ai utilise Siril (prétraitement et traitements manuels) + Gimp.

La photo a un peu de bruit car elle manque de poses. Mais c'est seulement le début de la saison pour ces deux nébuleuses qui vont être de plus en plus faciles à capter dans le ciel, donc je referai des poses dessus.

While imaging and processing the The Tulip nebula, I was surprised to see I also captured the shock wave being produced from Cygnus X-1. It is the site of one of the first suspected black holes. Over the years the location of this X-ray source became more accurately determined. The X-ray source was found to lie very close to the position of a 9th magnitude star called HDE 226868. This star is a large blue supergiant, and its companion – the more compact of the two objects in the system – is thought to be between 20 and 35 solar masses. Since the largest possible mass of a neutron star can not exceed three solar masses, the compact object which is unseen, is almost certainly a black hole. These two objects share an orbital periodicity of 5.6 days.

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: September 1, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).

Messier 15 is a globular cluster in the constellation Pegasus. At an estimated 12.0 billion years old, it is one of the oldest known globular clusters. M15 is about 33,600 light-years from Earth, and it has a total luminosity of 360,000 times that of the Sun. Messier 15 is one of the most densely packed globulars known in the Milky Way galaxy. Its core has undergone a contraction known as "core collapse" and it has a central density cusp with an enormous number of stars surrounding what may be a central black hole.

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: Televue 102 f/7

Mount: Ioptron CEM60 HP

Autoguider: camera Magzero 5m on SW 70/500, Phd guiding

Frames: RGB: 4X420sec each - Bin1 -20°

Processing: Pixinsight, Photoshop

Back in May I have published a photo of M101, the Pinwheel Galaxy (see here flic.kr/p/2nknGGe), but lately the new developments on processing, as well as the lack of new data, made me decide to reprocess the same data. I am really happy as it turned out much better than before, IMHO. I hope you enjoy.

Photo taken during March and April 2022, with the following distribution:

LUM: 129 x 180s (6h45), Bortle 4, March 26th

RGB: 160 x 180s (8h00), Bortle 8, April 1st

Ha: 82 x 300 (6h50), Bortle 8, April 28th

TS Optics Triplet APO 800/115 |

QHYCCD 268M | Skywatcher AZ EQ5-GT | Optolong RGB | Reducer: TSOptics TSFLAT 3’ 0.79x

Acquisition: N.I.N.A.

Processing: Pixinsight

Jupiter and Ganymede, photographed from my backyard in Long Beach, CA

Autostakkert did a better job of tracking Ganymede when it was closer to the disk of Jupiter. I was able to get some surface detail on the Galilean moon in this image.

30 s SER files were taken with a ZWO ASI120MM camera through Optolong CCD RGB filters on a Celestron Edge HD 925 telescope using FireCapture. The top 75% of frames went into 7 stacks of each color filter. These stacks were made in AutoStakkert, then sharpened in PixInsight. Stacks were combined and derotated in WinJUPOS, and the resulting R, G, and B images were combined in WinJUPOS to make a de-rotated single color image. Color balancing in Registax, then final touches in Photoshop.

Autostakkert didn't seem to pick up Ganymede in these images, thus rendering it featureless.

CM longitudes:

System I: 103.1°

System II: 256.9°

System III: 181.2°

This is only seen in the Southern hemisphere as this is right next to the Large Magellanic Cloud which you can see top most of the photo the white area. Which I will have to wait to get higher in the sky away from the City lights. First night I tried to get this the weather did not help the photos so I had to delete them all and start again. A very busy place in the sky.

Taken with ZWO CMOS camera 55 Files 5 min files Shot With

ZWO ASI071MC Pro @ -10c

ZWO AEF,

Optolong LeNhance filter,

Skywatcher Black DiamondED80 OTA

Skywatcher EQM35Goto

NGC 281 - NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.

** An H II region is a large, low-density cloud of partially ionized gas in which star formation has recently taken place.

Tech Specs: Williams Optics REDCAT51, ZWO ASI071mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eNhance filter (2”), 30 x 300 second exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, controlled with a ZWO ASIAir Pro running v1.5 software, stacked in DSS and processed using PixInsight and Adobe Lightroom. Image date: September 19, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.