Here is a view of the planet Venus captured during mid-day. Venus is currently only 6% illuminated and getting a bit harder to image with the heat causing a lot of shaking.

Tech Specs: Meade 12” LX-90, ZWO ASI290MC, best 10% of 5,000 frames, UV/IR filter, unguided. Captured using SharpCap Pro, stacked in Autostakkert, processed in Registax. Image date: May 21, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

This picture was captured using a telescope with a Hydrogen-alpha (Hα) filter. This lets us see the Sun's chromosphere. There are some nice prominences in view today. Although only one sunspot is visible, there are many filaments on the solar disc.

Telescope: Lunt 60mm Hα with double stack

Camera: ZWO I178MM monochrome

Capture Software: SharpCap

Processing Software:

AutoStakkert, RegiStax6, Light Room Classic, Photo Shop

First attempt at this object, a nice result!

The North America Nebula is an emission nebula in the constellation Cygnus, close to Deneb. It is named because its shape resembles North America (so they say!). About 2,200 light years away and 50 light years wide!

Image Details:

- Imaging Scope: William Optics 61mm Zenithstar II Doublet

- Imaging Camera: ZWO ASI183MC Color with ZWO Duo Band filter

- Guiding Scope: William Optics 66mm Petzval

- Guiding Camera: Orion Starshoot Auutoguider

- Acquisition Software: Sharpcap

- Guiding Software: PHD2

- Capture Software: SharpCap Pro (LiveStack mode with dithering)

- Light Frames: 18*6 mins @ 100 Gain, Temp -20C

- Dark Frames: 18*6 mins

- Stacked in Deep Sky Stacker

- Processed in PixInsight, Adobe Lightroom, Photmatix Pro HDR and Topaz Denoise AI

This is a supernova remnant. The Chinese recorded the supernova event in 1060AD, and even saw it during daylight hours for several days. It lies around 6,500 light years away.

Image Details:

- Imaging Scope: Celestron C8 SCT

- Imaging Camera: ZWO ASI183MC Color with ZWO IR cut filter

- Guider: Celestron Starsense Autoguider

- Acquisition Software: Sharpcap

- Guiding Software: Celestron

- Mount: Celestron CGEM

- Capture Software: SharpCap Pro (LiveStack mode with dithering)

- Light Frames: 30*5 mins @ 100 Gain, Temp -20C

- Dark Frames: 30*5 mins

- Stacked in Deep Sky Stacker

- Processed in PixInsight, Adobe Lightroom, and Topaz Denoise AI

Telescopio: APM APO-SD 140/980 mm f 7

Camera CMOS QHY5III178C

Montatura: iOptron CEM60

Software: SharpCap 3.0, Emil Kraaikamp Autostakkert 2.6.8, Pleiades Astrophoto PixInsight 1.8, Astra Image 4 SI

Risoluzione: 3000x2001

Data: 31 ottobre 2017 Ora: 20:40

Pose: 200 FPS: 28,00000 Lunghezza focale: 1470 mm Barlow 1.5X

Aberkenfig, South Wales

Lat +51.542 Long -3.593

Here is one from my archive with some additional post processing adjustments using Adobe Lightroom. Levels originally adjusted using G.I.M.P.

For a comparison, it is also filed in my Lunar Mosaics album next to my original posting.

Image session commenced 19:53 UT using Sharpcap.

11 Pane Mosaic.

Each pane captured with a Skywatcher 254mm Newtonian & ZWO ASI 120MC Astronomical Imaging Camera.

Each pane processed with Registax 6 then stitched with Microsoft Image Composite Editor.

This was one of my earlier attempts of putting together a lunar mosaic with a ZWO ASI 120MC. It turned out reasonably well as the overlap of each pane was less generous than my later captures.

A favourable libration on the eastern limb with the Mare Marginis & Mare Smythii clearly visible.

Best viewed using the expansion arrows.

Took these pictures Monday night, M2 and M33

Orion 80mm ED refractor, Zwo 294MC Pro cooled color camera

Zwo IR/cut filter

#SharpCap Pro PoleMaster

Ioptron i45 Pro EQ mount PHD2 guiding

Orion 60mm guidescope SSAG

120 Gain offset 10 0c cooling, 1 minute exposure, 60 minutes for M2, M33 was 120 minutes,1 minute exposure each

50 darks 50 flats and 50 bias frames

Astro Pixel Processor and PS

NGC 2169 is a small open cluster found in the constellation Orion. It is about 3,600 light years away from Earth and is nicknamed "The 37 Cluster", can you see the 37 in the image?

Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro running at -25C, 20 x 60 second exposures, GAIN 200, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using SharpCap v3.2. Image date: January 1, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

The Whirlpool Galaxy, also known as Messier 51a, M51a, and NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. Its distance is estimated to be 23 million light-years away from Earth.

The galaxy and its companion, NGC 5195, are easily observed by amateur astronomers, and the two galaxies may be seen with binoculars. The Whirlpool Galaxy has been extensively observed by professional astronomers, who study it to understand galaxy structure (particularly structure associated with the spiral arms) and galaxy interactions. (Source: Wikipedia.org)

Technical Information on Image

Messier 51, the Whirlpool Galaxy, taken from a Bortle 4 site in Landers, CA, USA on a New Moon night. Telescope: TPO Ritchey-Chretien 6 inch F9 with a FL 1370mm. Guiding was with Orion 50mm Guide Scope FL 242mm with a ZWO ASI183MC for the guide camera. Mount: SkyWatcher EQ6-R Pro. Main imaging camera: ASI294MC PRO cooled to -5C. Exposures: 24 x 240s with Gain at 120. No darks, flats or bias frames. Processed in PixInsight. Slight crop. Polar alignment was with SharpCap Pro.

The Full Wolf Moon passing in front of Mars (occultation) on Monday evening. This coincided with Mars closest approach to earth on Jan 12.

Occultation takes place when a celestial body with a greater apparent diameter passes in front of a body with a smaller apparent diameter. For example, when the moon passes in front of a star or planet. The occultation of the Sun by the Moon is called a solar eclipse.

Credit: www.starwalk.space.com

This is a composite image of Mars' path taken at 30 second intervals. (19:05:05 through 20:13:17MST)

10ms exposures, 3.2 frames per second for 10 seconds every 30 seconds. 50% stacked. Acquired with Sharpcap 4.1, processed in Autostakkert 4, IMPPG and Photoshop.

Imaging equipment:

PlaneWave CDK14 at 2,563mm focal length

Mesu 200 MKII mount,

QHY268M camera

A crop of previous image, part of the North America Nebula [NGC 7000 or Caldwell 20] Seen in the constellation of Cygnus.

The 'Gulf of Mexico' is the large dark area just above the centre

. 'America' is tilted on it's side, North to the left.

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: IDAS filter (Light Polllution)

G: PHD2

GC: ZWO ASI120mini

RAW16; FITs

Temp: -15 DegC

Gain 260;

19 x Exp 200s

33 x Exp 300s

Frames: 49/52 Lights; 20 Darks; 100 Flats

100% Crop

Capture: SharpCap

Processed: DSS; APP, PS, Gradient Exterminator Pro.

Sky: 80% Moon, no wind, 0% to 5% cloud, mild, good seeing.

Bortle 5 Sky.

Distance from Earth: 2,202 light years.

This image uses the same data as my previous post. The difference is the image was processed as 3 x Channels: Ha [Red]; O3 [Green] and O3 [Blue], in APP. Then imported into PS as 3 mono images then channel blended.

Taken one day after the Winter Solstice 2018.

M: iOptron EQ45-Pro

T: WO GTF81 Refractor

C: ZWO ASI1600MC-Cooled

F: Primalucelabs Sesto Senso

Guiding: No Guiding

Gain: 200; RAW16; SER

Temp: 8 DegC

Frames: 1000 Lights; No Darks; No flats

Exp: 1000 x 0.001s

50% Crop

Capture: Sharpcap

Processed: AS!2; R6; PS.

Taken from Oxfordshire, UK with an Orion 10" Dobsonian telescope, Celestron 3x Barlow and ASI120MC camera. This video was taken at 23:04 GMT / 00:04 BST overnight on 17th/18th July 2021.

2,000 frame video captured using SharpCap. The telescope was powered but wasn't tracking so I was manually nudging the gears to keep Jupiter in the frame as I captured the video.

The best 25% of the frames was stacked using Autostakkert! 3 then processed in Registax 6 and Fast Stone Image Viewer.

It's hard to lay off of this spring target given the visual drama of the two intersecting galaxies. Here I've used a sensitive monochrome astro-cam to squeeze a lot of detail from a small scope in my suburban yard.

Tech Stuff: Questar 3.5"/ ZWO ASI 533MM/ RST-135E mount/ 85 minutes of 4 second exposures, captured with SharpCap Pro and processed with PixInsight. From my Bortle 7 yard 10 miles north of New York City.

NGC 2281 is another small open cluster found in the constellation Auriga. It has a magnitude of 5.4 and is about 1,800 light years away from Earth.

Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro running at -25C, 20 x 60 second exposures, GAIN 200, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using SharpCap v3.2. Image date: January 1, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

The Crescent Nebula also known as NGC 6888, Caldwell 27, Sharpless 105 is an emission nebula in the constellation Cygnus, about 5000 light years away from Earth. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000 years ago.

Shot over the past few months over 8 nights. Framed it a little different than I usually see.

Total Integration: 28 hours 5 mins

#askarv 80mm at 600mm

#zwo ASI2600MM

ZWO Am5

ZWO ASI220MM, EAF & Filter Wheel

#stellarvue 50mm Guide Scope F050G

#deepskydad Flat Panel

Pegasus Rotator V1

#antlia 3nm Ha, OIII, SII

#optolong R, G, B filters

Acquisition: NINA, Sharpcap for PA

Stacked in APP, bias, flats, flatdarks, darks

Processed/edited in PI, PS

High Resolution Image: app.astrobin.com/u/jratino?i=l9ewzl#gallery

FB JL Ratino

IG jlratino

Halloween moon

Best 50% of 1000 frames IR PASS filter

Scope: Orion 8" f4 Astrograph with Baader Coma Corrector

Mount: iOptron iEQ45 pro

Camera: ZWO ASI183M non cooled

ZWO IR PASS filter

ZWO 8 position 1.25 filter wheel filter wheel

Moonlite focuser CR2

Moonlight Hi Res stepper motor

MyFocuser Pro v2 (Robert Brown) controller

Home Observatory

Software: Sharpcap, CdC, Photoshop, autostakert!3, Registax, Google remote desktop

Nel pomeriggio del 26 luglio, con difficoltà e un po’ di fortuna, sono riuscito a riprendere con la camera planetaria e il piccolo telescopio newtoniano il brevissimo transito della Stazione Spaziale Internazionale davanti al Sole. La durata totale del transito è stata di poco più di un secondo a causa dell’elevata velocità con cui la stazione orbita intorno alla Terra. La ISS è grande circa come un campo da calcio, orbita a circa 400 km di quota e viaggia alla velocità di quasi 28000 km/h compiendo un’orbita in circa 92 minuti. Al momento l’equipaggio è composto da 7 astronauti tra cui anche Samantha Cristoforetti.La ripresa contiene 1059 fotogrammi e in soltanto 8 è presente la sagoma della ISS, che ho sovrapposto per ottenere questa immagine.

Sono abbastanza visibili gli enormi pannelli solari della struttura e sono presenti alcune macchie solari, tra cui una più grande ed evidente.

Dati:

Telescopio Celestron 114/910 Newton

Montatura Eq2 con motore AR con pulsantiera

Camera QHY5L-II-C

Filtro UV-IR cut

Filtro Astrosolar

Sharpcap per acquisire un video da 1059 fotogrammi a 17 fps con tempo di esposizione di 1/2000 sec

Pipp per scomporre il video in immagini TIFF

GIMP per sovrapporre i fotogrammi e modificare leggermente la nitidezza e il contrasto nel risultato finale.

Luogo: Cabras (OR)

Data: 26-07-2022

Ora esatta del transito:17:41:06.75 ora locale

Uncropped image from a 480mm scope. The chief targets were M52 and the Bubble Nebula but you can see several dark nebulae and the red glow of a molecular cloud towards the right.

www.flickr.com/photos/16271433@N02/15093428895/in/album-7...

An interesting circular feature inside an emission nebula.

The bright star at 2 O'clock inside the bubble is a O6.5 class giant that has shrugged off clouds of hydrogen gas as it matures.

The diffuse red cloud represents earlier ejections whilst the "bubble" represents a more tightly defined and more recent ejection of matter. The O class star is rich in ultraviolet light (surface temp = 37500k compared with 5700k for our Sun) that makes the hydrogen gas fluoresce with its characteristic red colour (656 nm).

The host star (BD +60 2322) is not at the centre of the bubble but it is thought that it probably was when the bubble was ejected.

Equipment-

480/60mm f/6 Altair Astro Triplet Refractor.

Altair Astro planostar x 1.0 FF with 2 inch IDAS LPS D1 filter

ZWO ASI2600MC; 30 x 5 minute subs + (150 minute total integration). Gain: 100 Offset:50 Temp: -10c.

NEQ6 Pro Mount with Rowan modified belt drives.

Laptop with SharpCap 4.0 for plate solving GOTO. focusing and acquisition.

Calibration-

50 dark frames

50 flat frames (Electroluminescent panel @ 1 second, Gain 0)

QHY Polemaster alignment -

Error measured by PHD2 =1.2’

Guiding-

PHD2 guiding with ZWO ASI290mm/Altair lightwave 209/50mm secondary scope. Alternate subs dithered.

RA 0.53” RMS

Dec 0.35” RMS

Astrometry-

Resolution ............... 1.613 arcsec/px

Focal distance ........... 479.46 mm

Pixel size ............... 3.75 um

Field of view ............ 31' 59.8" x 25' 6.8"

Center (RA, hms): 12 36 08.136

Center (Dec, dms): +25 55 58.99

Light Pollution-

SQM (L): 20.33 mag/arcsec2.

Typical of outer suburbs - Bortle scale = 5/9 Yellow

Environmental-

Clear throughout

Post processed in PixInsight 1.8.9

Messier 33.

Located in the constellation of Triangulum.

A re-process of previous light frames, using the 'Astro Pixel Processor' application. A slight crop applied ~ 85%.

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: L-eNhance filter (Dual Ha,Hb & Oiii Narrowbands)

G: PHD2

GC: ZWO ASI120mini

RAW16; FITs

Temp: -20 DegC

Gain 139; Exp 400s

Frames: 25 Lights; 4 Darks; 20 flats

100% Crop

Capture: SharpCap

Processed: APP; PS, Astrotools

Sky: New moon, calm, no cloud, cold, fair seeing.

2.73 million light years distant.

The past few weeks we finally had some clear nights. Gemini and Monoceros constellations are visible for only a couple of hours before being blocked by trees in our backyard. So I put both rigs to work gathering data on IC443, the Jellyfish Nebula, and the Cone Nebula (hopefully I can gather a bit more). Its distance is roughly 5,000 light years from Earth.

IC 443 is a galactic supernova remnant in the constellation Gemini.

I processed this image in HOO, incorporating SII data using Adam Block Gilding Method. I think I ended up with a nice Red/Orange color.

Total Integration: 16hours 43mins

Equipment:

Rig1

Stellarvue SVX102T and Flattener

ZWO ASI533MM, ZWO AM5, EAF, EFW, ASI120 guide cam

Wandererastro Rotator Lite

Stellarvue 50mm Guide Scope F050G

Chroma 3nm Ha, OII, SII, R, G, B

Rig2

AskarV 80mm at 600mm

ZWO ASI2600MM

ZWO Am5

ZWO ASI120MC/30MM Guide Scope, EAF & Filter Wheel

Pegasus Rotator V1

Antlia 3nm Ha, OIII, SII

Acquisition: NINA, Sharpcap for PA

Stacked in APP, bias, flats, flatdarks, darks

Processed/edited in PI, very minor editing in PS/LR, Topaz Denois

Two Deep Space Objects in the same field of view! Howzat? The Owl Nebula is to the left (see his eyes?) and the Surfboard galaxy to the right. In reality, the Owl Nebula lies about 2,000 light years away, whereas the Surfboard Galaxy lies a much more distant 45.9 million light years away!

Image Details:

- Imaging Scope: Astrotelescopes ED 80mm Refractor

- Imaging Camera: ZWO ASI183MC Color with UV/IR Blocking filter

- Guiding Scope: William Optics 66mm Petzval

- Guiding Camera: Orion Starshoot Auto Guider

- Acquisition Software: Sharpcap

- Guiding Software: PHD2

- Light Frames: 33*3 mins @ 180 Gain, Temp -30C

- Stacked in Deep Sky Stacker

- Processed in PixInsight and Adobe Lightroom

M: iOptron EQ45

T: WO GTF81

C: ZWOASI1600MC

G: OAG ASI120MM

Lights: 60% best of 250 x 60s

Gain: 139

Temp: -15 DegC

Darks and Flats to suit.

In all about 2.5 hrs of Data.

Capture: SharpCap

Processed in Astro Pixel Processor & PS to tweek.

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

Filter: L-eNhance

G: None

GC: None

RAW16; SER Output Format

Temp: -20 DegC

Gain 139; Exp 0.025s [25ms]

Frames: 1010 Lights; 50 flats

80% Crop

Capture: SharpCap

Processed: PIPP; DSS; PS.

Sky: At sunrise, 3rdQ moon, calm, no cloud, good seeing.

The less photographed eastern limb, due to it being seen in the early morning, when most of us are tucked up nice and warm.

22-25 million light years away with not just any black hole but a "supermassive" black hole at the center. Dwarf galaxy NGC 4248 stands by on the upper right.

Tech Stuff: Questar 3.5"/ ZWO ASI 533 MM/ RST-135-E mount. 100 minutes total of livestacked 8-second exposures, captured in SharpCap Pro and processed in PixInsight. From my yard in Westchester County, 10 miles north of NYC.

Bullialdus Crater – diameter is just under 61 km, named for Ismael Boulliau, French astronomer (1605-1694).

Tech Specs: ZWO ASI290MC camera and Meade 12” LX90 telescope mounted on a Celestron CGEM-DX mount. Software used included Sharpcap v2.9, AutoStakkert! Alpha Version 2.3.0.21, ImagesPlus v5.75a, and Registax v6.1.0.8. Photographed on January 7, 2017 from Weatherly, Pennsylvania.

Same comet, same images [lights] processed differently using Astro Pixel Processor. I prefer this one.

This version of the recent Comet C/2022 E3 (ZTF), whilst zipping through the constellation Auriga a few days ago. Processed from a stack 100 light frames, each with an exposure of 60s. Astro Pixel Processor image processing application used to track the comet across the stack of images, while letting the background stars blur. The ion tail is visible here shooting off to the top left. Star trails are the 'smudges' going from bottom left to top right.

Emission nebula located 4300 lightyears away, spanning 300 lightyears across.

Captured from my backyard in Korumburra, VIC, Australia.

Skywatcher Evostar ED80

Saxon AZ/EQ6-GT

QHY 268M

QHY3FW-3M + 6nm 36mm filters

Light frames: Sii x 20 | Ha x 27 | Oiii x 15

Subexposures 360s | Gain 120 | Offset 50

Calibration frames: Darks x 20 | Bias x 50

Captured using Sharpcap Pro, ASCOM EQmod & PHD2.

Processed in Pixinsight, Photoshop & Lightroom

Data collected 8 Aug. 2019

77 frames at 60 seconds, gain 0.

Capture ZWO ASI224MC

Tracking ZWO ASI120MC-S

Scope 8" f/3.9 Orion Astrograph

Guide scope 60x215 (I think)

Mount Atlas Pro AZ/EQ-G

Captured with Sharpcap 3

Processed with PixInsight

Comments welcome.

Taken with Espirit150, 0.75x focal reducer and ASI2600MC camera. 40 x 2 minutes exposures Live Stacked in SharpCap Pro.

M106 In the constellation of Canes Venatici.

A second run at this target on a moonless night, with more light exposures. Definitely more detail!

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: No Filters

G: PHD2

GC: ZWO ASI120mini

RAW16; FITs

Temp: -15 DegC

Gain 139;

42 x Exp 360s

Frames: 42 Lights; 2 Darks; 200 flats

100% Crop

Capture: SharpCap

Processed: DSS; PS; Grad Exterminator.

Sky: No Moon, calm, no cloud, cold, excellent seeing.

22-25 million light years distant.

This is my first ever attempt at imaging Mars through a telescope; all of my previous photos of it have been widefield / conjunction photos.

Taken with an Orion 10" Dobsonian telescope, Celestron 3 x Barlow and an ASI120MC camera.

3,000 frame video captured with SharpCap Pro, the best 5% of the frames were stacked using Autostakkert! 3, sharpened and RGB realigned in Registax 6. Processing was done with Lightroom, Photoshop CS2 and Fast Stone Image Viewer.

I've included the labelled Mars map from Mars Mapper (secure18.prositehosting.co.uk/secure_ssl/BAA/mars.html#) to compare the surface features seen on my image.

I tried stacking lots of different percentages of the frames but the seeing was pretty grim so a stack of 5% definitely produced the best results. For a first ever attempt and given the conditions, I'm pretty pleased with this!

The Eagle Nebula includes the famous "Pillars of Creation" which have been imaged in great detail by the Hubble and James Webb space telescopes. The pillars are noted as "stellar nurseries," and multiple bright stars activate the gaseous emission nebula. It's a nice backyard target but it's very low in my sky which means I have to plan for when I can image it. Here I've used my 3.5" Questar, a fine telescope for viewing planets but it's very slow (f/16) for targets like this. I acquired a new mount this year that makes most steps of the capture process much more efficient than "hacked" approaches I used when I started imaging 8 or 9 years ago.

Tech Stuff: Questar 3.5" telescope/RST-135E mount/ZWO ASI 533MC Pro camera/IDAS LPS V-4 filter. 80 minutes of unguided 4 to 15-second exposures collected in SharpCap livestacks and processed in PixInsight. From my Bortle 7 yard 10 miles north of NYC.

M101 In the constellation of Ursa Major.

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: IDAS D2

G: PHD2

GC: OAG & ZWO ASI120mini

RAW16; FITs

Temp: +4 DegC

Gain 250;

40 x Exp 400s

Frames: 40 Lights; 20 Darks; 20 flats

100% Crop

Capture: SharpCap

Processed: APP; PS; Gradient Exterminator

Sky: Waning 60%, Calm, No cloud, Mild; fair seeing.

20.87 million light years distant.

I’m so proud to present to you Eta Carina with it’s full beauty or the Great Carina Nebula NGC 3372. Always, I want to image this fascinating area of the sky but due to its very low height over horizon because it’s located in southern constellation and difficult to image. I’m so lucky to get clear horizon to make a sneak capture for 30 minutes and chase the chance to shot this beauty and its latitude is only 2-4 degrees over horizon. This nebula is 4 times larger than well known Orion nebula and even brighter that can be seen by naked eye from a dark sky. It’s located in southern Carina constellation that can only seen from southern hemisphere. Its very large diffuse emission nebula that energised by the central star called Eta Carinae which is responsible for this mess. This star is 5 million times more luminous than our Sun. Imaged from Bortle 4 sky. Gear setup: Celestron RASA 8 f/2, iOptron GEM45, ZWO 2600MC @-10, ALP-T Dual band Highspeed filter 2”. Captured by APT, PHD2, Sharpcap Pro, Lights 10 x 180, Flats 20, Darks 20, Bias 50. Stacked in APP, Processed by PI & PS.

Taken with ASI2600MC camera using an Espirit 150mm scope. Exposure consists of 58 x 5 minute sub exposures Live Stacked and calibrated on the fly in SharpCap Pro

Hercules and nearby Atlas are both craters with multiple terraced edges. Strongmen of ancient mythology, the Titan Atlas was condemned to hold up the sky for eternity whilst Hercules was the Roman equivalent of the Greek hero Heracles.

Endymion is a walled plain close to the Moon’s northeast limb which appears oval due to foreshortening. In Greek mythology Endymion was a lover of Seline. Pliny the Elder suggested that he was the first human to observe the movements of the moon.

Lacus Temporis, or Lake of Time, is an area of basaltic lava.

Franklin, named after Benjamin Franklin, is a lunar impact crater with a central peak.

Cepheus is a relatively young crater named after a king of Aetheopia and father of Andromeda.

Bürg crater has a large central mountain and is named after Johann Tobias Bürg, a Viennese astronomer who published tables on the orbit of the moon in 1799.

Imaged with Sharpcap on 13-09-2022 from the UK using a SW200P Newtonian scope and Altair H183Mpro camera with a red filter. The best 25% of 2000x 3ms subs were stacked in AutoStakert, sharpened in Registax and post processed in Affinity Photo with Topaz DeNoiseAI plug-in.

NGC 2192 is a nice little open cluster found in the constellation Auriga. It has a magnitude of 10.9 and is about 11,300 light years away from Earth. The Sky Watcher Esprit frames this cluster nicely mixed in with some brighter 6th and 7th magnitude stars. This size of the cluster is roughly 5-6 arc-minutes wide.

Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro running at -25C, 20 x 60 second exposures, GAIN 200, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using SharpCap v3.2. Image date: January 1, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

NGC 772 is an unbarred spiral galaxy approximately 130 MILLION (!) light-years away in the constellation Aries.

First attempt at this object. The new Celestron Starsense Autoguider is stunningly good and easy to use. I'd never thought I could get images like thise through my 8" Schmidt-Cassegrain. My processing still needs work but this is some crazy deep space stuff now...

Image Details:

- Imaging Scope: Celestron C8 SCT

- Imaging Camera: ZWO ASI183MC Color with ZWO IR cut filter

- Guider: Celestron Starsense Autoguider

- Acquisition Software: Sharpcap

- Mount: Celestron CGEM

- Guiding Software: Celestron

- Capture Software: SharpCap Pro (LiveStack mode with dithering)

- Light Frames: 30*5 mins @ 100 Gain, Temp -20C

- Dark Frames: 30*5 mins

- Stacked in Deep Sky Stacker

- Processed in PixInsight, Adobe Lightroom, and Topaz Denoise AI

Edit 9/10/2021: This image was featured by APOD GrAG: apod.grag.org/2021/09/10/a-sagittarius-triplet-m8-m20-and...

This so far is my favorite image! Nearly 21 hours of data (taken across 4! nights) and 3 hours of processing went into this huge project. I love the color range so much - golden milky way stars, pink lagoon nebula, and light blue trifid reflection.

Equipment:

- Nikon D90

- Sigma 300mm prime lens

- Sky-Watcher Star Adventurer

- Star Adventurer Tripod

- Bahintov Mask

- Intervalometer

- DIY diffraction spikes using a violin strings

- Stellarium

- All Sky Plate Solver

- Sharpcap

- Laptop

Acquisition:

- Taken from Sharon, CT

- Bortle 2-4

- ISO 800

- F/4.0

8/7/2021

- 112 x 3′ lights

- 200 bias

- 50 flats

- 32 darks

8/8/2021

- 92 x 3′ lights

- 50 flats

- 12 darks

8/11/2021

- 102 x 3′ lights

- 50 flats

- 16 darks

8/14/2021

- 108 x 3′ lights

- 100 bias

- 50 flats

- 27 darks

Total:

- 414 x 3′ lights (20.7 hours)

- 300 bias

- 200 flats

- 87 darks

Processing:

- Calibrate using WBPP

- Assign weights with subframe selector

- Star align

- Integrate 10 best images for a local norm reference

- ABE degree 1 on the image

- Local norm scale 256

- Image integration

- CFA drizzle

- DBE

- Background neutralization

- PCC

- Extract L

- Histogram transformation and ArcsinH stretch on RGB

- Masked stretch and Histogram stretch on Luminance data

- LRGB combine

- create starless image

- Exponential transformation on starless image

- Blend back to LRGB with pixel math to avoid blowing out stars

- Slight curves

- Adam block style star reduction

- blend back using straight average with normal image

- Annotate image with watermark

Instagram: www.instagram.com/

Website: theastroenthusiast.com/

24 @ 300 seconds in HA

Scope: AT65EDQ

Mount: iOptron iEQ45

Camera: ZWO ASI183M non cooled

Guide camera: QHY5Lii

Guide Scope: Stellarvue 60mm

Orion 5 position manual filter wheel

Schuler HA 9nm,

MyFocuer Pro v2 (Robert Brown)

Bahtinov mask

Software: APT, PHD2, Sharpcap, CdC, Pixinsight, Photoshop, Google Chrome Remote

274 frames at 8 seconds each live stacking in SharpCap. Gain 50 ASI183MM non cooled. No guiding, no darks (that was a mistake).

65 mm APO 420mm FL.

The California Nebula is a prominent target in the autumn sky. Invisible to backyard observers with small telescopes, the Hydrogen-alpha light emission makes it easy to reveal with filtered astro-photography. Here I am experimenting with the popular trend of using "Hubble Palette" coloration which was necessitated by the need to assign visible colors to energy -- like UV and infrared -- outside the visible light spectrum. With my backyard data from the NY suburbs, the transformation from the familiar "lobster claw" appearance displays more complexity in this great cloud of galactic dust. Older image here tinyurl.com/calinebHA.

Starting March 7th, I'll be teaching a fresh round of Urban Astrophotography: Deep Sky with NYC's Amateur Astronomers Association

aaa.org/event/urban-astrophotography-deep-space-imaging-2...

The six Zoom sessions are available to members and non-members for a slightly higher registration fee.

Tech Stuff: Borg 55FL/ZWOASI533MC/IDAS LPS-V4/RST-135E. 6 Hours of unguided 8-second exposures captured in SharpCap Livestacks, processed in PixInsight. Imaged over 2 nights in November 2023 from my Bortle 7 yard in Westchester County.

First in Messier's catalogue of things that weren't comets. This exploded star continues to evolve and makes for a fun winter imaging target.

Tech Stuff: Questar 3.5"/ ZWOASI 533Pro/ Idas LPS V4 filter/ RST-135E mount. 5.5 hours of unguided 15-second exposures, captured in 6-minute livestacks in SharpCap 4.1 From my Bortle 7 yard in Westchester County; 3 nights around New Years Day 2024.

Here is a view of last evening’s 60% illuminated moon shot through some heavy fog.

Tech Specs: Sky Watcher Esprit 120ED, Celestron CGEM-DX pier mounted, ZWO ASI290MC, ZWO EAF, Televue 1.5x Barlow. Captured in SharpCap Pro, processed in Autostakkert and Registax, four panel mosaic. Image date: October 13, 2021. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).

Its 8 years since I've imaged this target! Used the same scope but nearly everything else has changed.

www.flickr.com/photos/16271433@N02/15093428895/in/album-7...

An interesting circular feature inside an emission nebula.

The bright star at 2 O'clock inside the bubble is a O6.5 class giant that has shrugged off clouds of hydrogen gas as it matures.

The diffuse red cloud represents earlier ejections whilst the "bubble" represents a more tightly defined and more recent ejection of matter. The O class star is rich in ultraviolet light (surface temp = 37500k compared with 5700k for our Sun) that makes the hydrogen gas fluoresce with its characteristic red colour (656 nm).

The host star (BD +60 2322) is not at the centre of the bubble but it is thought that it probably was when the bubble was ejected.

Equipment-

480/60mm f/6 Altair Astro Triplet Refractor.

Altair Astro planostar x 1.0 FF with 2 inch IDAS LPS D1 filter

ZWO ASI2600MC; 30 x 5 minute subs + (150 minute total integration). Gain: 100 Offset:50 Temp: -10c.

NEQ6 Pro Mount with Rowan modified belt drives.

Laptop with SharpCap 4.0 for plate solving GOTO. focusing and acquisition.

Calibration-

50 dark frames

50 flat frames (Electroluminescent panel @ 1 second, Gain 0)

QHY Polemaster alignment -

Error measured by PHD2 =1.2’

Guiding-

PHD2 guiding with ZWO ASI290mm/Altair lightwave 209/50mm secondary scope. Alternate subs dithered.

RA 0.53” RMS

Dec 0.35” RMS

Astrometry-

Resolution ............... 1.613 arcsec/px

Focal distance ........... 479.46 mm

Pixel size ............... 3.75 um

Field of view ............ 31' 59.8" x 25' 6.8"

Center (RA, hms): 12 36 08.136

Center (Dec, dms): +25 55 58.99

Light Pollution-

SQM (L): 20.33 mag/arcsec2.

Typical of outer suburbs - Bortle scale = 5/9 Yellow

Environmental-

Clear throughout

Post processed in PixInsight 1.8.9

No guiding Narrowband, short exposures

HA 240 @ 30seconds Gain200

30 darks

Scope: Orion 8" f4 Astrograph with Baader Coma Corrector

Mount: iOptron iEQ45 pro

Camera: ZWO ASI183M non cooled

Schuler HA 9nm,

Moonlite focuser CR2

Moonlight Hi Res stepper motor

MyFocuer Pro v2 (Robert Brown) controller

Bahtinov mask

Home Observatory

Software: APT, PHD2, Sharpcap, CdC, Pixinsight, Photoshop, Team Viewer

I got M28 with some more color this time compared to M16, and clouds wanted to be photographed as well...

ES 80mm ED Triplet APO refractor 480mm F/6, Orion FF, Zwo 294MC Pro cooled color camera 107 frames 1 minute 120 gain, plus flats and bias frames....Shapcap Pro, DSS and PS, Ioptron i45 Pro EQ mount, just tracking

M82-NGC 3034 La galaxie du Cigare (à gauche).

M81-NGC 3031 Galaxie spirale (à droite).

ZWO ASI294MC-Pro Cooled + filtre IR-CUT ZWO M48 + adaptateur CCD TS Optics EOS/T2 + Sigma 150/600 à 600mm f6.3 sur Sky Watcher Star Adventurer.

83 poses de 30s soit 41.5 min de pose. Acquisition avec SharpCap 3.2 - Traitement hasardeux sur Darktable .

Latitude 48°29' N - Passage de nuages légers.

Merci aux forums et tutos qui traitent de l'astrophotographie.