Under a frigid but very clear sky last night I tried out a new filter and was able to combine the resulting data with some previous images to produce this composite of the star-forming region known as IC 410, the larger cloud at upper left, along with the smaller IC 417 to the lower right. (For the astronomy purists, this is rotated relative to the usual north-up orientation, but I thought it looked more interesting this way (and there's no "up" in space anyway).

This rendering is a lot like many of the images from the Hubble Telescope that combine the light of the three elements sulfur, hydrogen, and oxygen into the colors red, green and blue respectively.

Mosaic of 13 separate frames, multiple exposures each; Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, dual narrow-band filter (H-alpha+[O III]), [S II] filter, ASIAir controller, iOptron CEM25P mount, processed in Astro Pixel Processor and Lightroom.

Star Adventurer - Canon 6D - Lente Canon EF 50mm f/1,4 USM

25 lights - f/4 - 300s - ISO 1600 - 4000K - 16 darks - 24 flats

Procesado: AstroPixelProcessor - Adobe Lightroom

M33, a beautiful spiral galaxy in the constellation Triangulum. It's "only" about 2.8 million light-years away, making it the next nearest large spiral galaxy to us (just beyond M31, the Andromeda Galaxy), and part of the association of galaxies called the Local Group. Had a couple of nice clear, calm nights recently, though the moon is waxing past last quarter, and local lights add to the sky brightness.

Tech: 75 5-minute exposures, ASI294MC camera, Nikon 200-500mm f/5.6 lens, UV/IR cut filter, iOptron CEM25P mount, ASIAir controller, auto-guided, processed in Astro Pixel Processor and Lightroom.

Je vous présente la nébuleuse de la trompe de l’éléphant, plus connu sous le nom de IC1396. Elle se situe dans la constellation de Céphée. Il y a 1h30 de signal, dans le futur, je prévois de faire une mosaïque de cette région absolument magnifique et riche en détail.

Pas de Dark, 50 offsets, 50 flats & 90 lights à 60sec, f/2.8, 1600iso (soit 1h30)

-Prétraitement APP (AstroPixelProcessor)

-Traitement APP, GraXpert, Starnet++, PS

November 5-6, 2021. 2 panel mosaic.

These glowing filaments and wispy tendrils of the Vela Supernova Remnant are all that remains of a star much like our sun. It once glowed bright and provided warmth to worlds like our earth. And then at the end of its life, the star went supernova and destroyed worlds - leaving a tapestry of colors and shapes behind.

Calibrated images of the Vela Supernova Remnant were provided by iTelescope.net. In addition to providing access to their telescopes, iTelescope.net provides subscribing members with a combination of premium image sets (with the rights to use & post them) and webinars that show how to process them. Itelescope.net captured the images using their T10 telescope based in the Siding Spring Observatory in New South Wales, Australia. I handled the post-processing side with Astro Pixel Processor, Photoshop, Star Xterminator, Star Spikes Pro, Topaz Sharpen and DeNoise AI.

A galaxy group in Ursa Major and Camelopardalis, one of the nearest galaxy groups to the Local Group at approximately 3.6Mpc away.

The big obvious spiral is M81, Bode's Galaxy at about 12 Mly away, with a supermassive black hole about 70 million solar masses. The bright blue the spiral arms are star formation regions; the pink/red spots are nebulae.

The second-largest is M82, aka the Cigar Galaxy, also 12Mly away, home to the brightest pulsar yet known, M82-X-2. Tidal forces from interaction with M81 have caused massive star formation.

The wispy lines and areas are Integrated Flux Nebulae (IFN), bodies of gas and dust outwith the main body of the galaxy illuminated by the light of the galaxies themselves. You could say it's a bit faint - there are stars down to magnitude 16.1 in here, easily.

This is 8 hours' exposure on the Altair 26C using 3-min subs, gain 100, Neodymium filter.

Dati: 40 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 25 ° C - Umidità 35%

Part of the much larger Cygnus Loop, it's the ionised gas remnants of a supernova and is around 1470 LYs from Earth. The area is VAST ( it would take me a month of solid imaging to capture it all on this camera and scope set up).

This image is a mono capture using two filters to capture light from different gases in the nebula: Hydrogen alpha and Oxygen 3. These have then been combined into Red = Ha, Blue and Green = O3.

I love shooting this area of the sky as the detail that comes out is fantastic - shame it's only visible in the summer when dark hours are down to a couple per night.

QHY163m, Skywatcher 130pds (with 0.9x coma corrector)

Baader 7nm Ha and 8nm O3 filters

Stacked in AstroPixelProcessor and processed in PixInsight

50x240s exposures per filter, 20 darks, 20 flats, 20 dark flats

IC 1396 Elephant Trunk Nebula, star-forming HII region in Cepheus.

2x3 mosaic, Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, dual narrow-band fillter (H-alpha and [O III]), iOptron CEM25P mount, ASIAir Pro controller, processed in Astro Pixel Processor and Lightroom.

Dati: 12 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 25 flat e darkflat

Filtro Astronomik UV/IR Block L2

Montatura: eq6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Comet C/2019 L3 (ATLAS) passes the small open cluster NGC 2266. Processed once to register the stars, again to register the comet and composited in Photoshop.

Explore Scientific ED102 0.1m f/7 refractor, ZWO ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P mount, ASIAir controller, Processed in Astro Pixel Processor, Lightroom, and Photoshop.

The Pleiades star cluster in the constellation Taurus. Stars and dust gravitationally bound to each other.

1x3 mosaic, each tile 30 300 second exposures frames (7.5 hours total exposure). Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut fillter, iOptron CEM25P mount, ASIAir Pro controller.

Comet 19P/Borrelly, currently the brightest comet in the sky, though rather faint.

A composite of 61 exposures, 2 minutes each, processed to register on the comet and separately to register on the stars, combined in Photoshop.

Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor, and Lightroom.

The California Nebula, NGC 1499, a cloud of gas and dust in the constellation Perseus, named for its resemblance to the shape of California. I was surprised at the amount of detail and color separation, which results from the combination of exposures in the light of hydrogen (green), sulfur (red), and oxygen (blue). This is a mosaic of three frames with a total exposure of 9 hours with the dual hydrogen+oxygen filter and 6 hours with the sulfur filter.

Explore Scientific ED102 102mm f/7 refractor, ZWO ASI294MC Pro camera, dual narrow-band filter (Hα,[O III]), [S II] filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor and Lightroom

#astrophotography #deepskyphotography #nebula

With my experience capturing and processing deep space objects continuing to grow, I wanted to revisit a few of my favorite celestial locations including the North America and Pelican Nebulae. I think this version shows improvement and I hope you like it too.

I captured this image (from my home in Colorado) using iTelescope.net's T20 telescope located in an observatory in Beryl Junction, Utah. I captured 69 images over 2 nights using both wideband and narrowband filters and processed them with Astro Pixel Processor, Photoshop, Star Xterminator, Star Spikes Pro, and Topaz Denoise/Sharpen. I found that Star Xterminator allowed me to separate the nebulae clouds from the stars - a step that helped a quite a bit.

Exposure Settings

• 69 - 5 minute exposures

○ Luminance: 18

○ Red: 8

○ Green: 8

○ Blue: 8

○ Hydrogen-Alpha: 9

○ Sulfur-II: 9

○ Oxygen III: 9

• Total Exposure Time: 345 minutes

Telescope Optics & Camera

• Optics: Takahashi FSQ-ED (T20)

• Focal Length: 530 mm

• Mount: Paramount ME

• CCD: SBIG STL-11000 - 10.7 mb

• Observatory Location: Beryl Junction, Utah

47 Tucanae (NGC 104) is a globular star cluster located about 13,000 light years away from Earth. The actual number of stars in this globular cluster is believed to be ~500,000 stars and the core is said to contain nearly 35,000! If planets could exist around the stars in the core of this cluster, one could only imagine what you would see in the day or night sky.

Some details about the image:

Unlike the last object; this image was created by capturing light in the red, green, blue wavelengths. A clear (luminance) filter was used to capture detail.

Filters and Exposures:

Lum bin 1x1; RGB bin 2x2

Lum = 23x120 sec; 30x60 sec

R = 26x120 sec

G = 26x120 sec

B = 25x120 sec

Total integration: ~3.9hrs

Telescope and Camera:

T31 (Planewave 20" (0.51m) CDK)

Camera = FLI-PL09000

Software: AstroPixel Processor, Photoshop

The Veil Nebula NGC6979 and NGC6974.

This is my first attempt at processing Pickering's Triangle, a segment of the Veil Nebula, using data from iTelescope's new Delta Rho 500 f/3 (T26) in Utah. The data was provided as part of my subscription plan; as such, it was limited to 2 x 600s HA, SII, and OIII files already calibrated, giving a one-hour integration time.

The files were first integrated using AstroPixelProcessor, then processed using PixInsight, with a final tweak using Photoshop to bring out a little more contrast.

A large but relatively faint, emission nebula in Vulpecula. it contains the small reflection nebula NGC 6820 and the open cluster NGC 6823. It is most well known for the prominent pillar in the brighter core, though many other fascinating substructures can be seen in the dimmer parts of the nebulosity. The main body of the nebula is crossed by a dark cloud.

The image was taken with Ha (mapped to red), S-II (mapped to yellow/green), O-III (mapped to cyan) ultra-narrowband filters as well as with the g’ photometric filter (mapped to blue) to pick up the faint reflection nebulosity. The O-III signal is weakest but present in the bright core. Stars are from the sulfur-II plates and are thus without colour. Processing in AstroPixelProcessor, StarTools, PixInsight and Photoshop.

SIGMA fp L (Monochrome)

Celestron RASA 11

10 Micron GM1000 HPS

4,5 hrs, ISO 400, 620mm, F2.2

Flame Nebula (NGC 2024) and Horsehead Nebula in the constellation Orion.

This is an integration of 35x180s exposures at ISO 800 with a Nikon Z7ii and a Skywatcher Esprit 100 on a HEQ5 mount. Stacked in AstroPixelProcessor.

My goal with framing this shot was to include the Dumbbell Nebula (tiny, but bright, on the left), the asterism Brocchi's Cluster (lower right, AKA Coathanger) and some of the well-defined dark nebulae in the region (upper right). Emission nebulae are also fairly prominent near the center.

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken July 23, 2020 from Bortle 3/4 skies.

Dati: 156 x 300 sec ( 13 ore) gain 5 @ -10° c + 70 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: asi120mm su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 18 ° C - Umidità 70%

NGC 7023: The Iris Nebula in the constellation of Cepheus.

First run at this target on a 99% full moon night.

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: No Filters

G: PHD2

GC: ZWO ASI120mini

RAW16; FITs

Temp: -20 DegC

Gain 139

104 x Exp 100s

Frames: 104 Lights; 2 Darks; 200 flats

95% Crop

Capture: SharpCap

Processed: APP; PS; Grad Exterminator.

Sky: Full Moon, calm, no cloud, mild, good seeing.

NGC7023: 1.3 thousand light years distant.

This is a SHO version of my capture of this beautiful area in Cepheus, located between „Wizard Nebula“ and „Elephant's Trunk Nebula“. Very faint, but comprising spectacular objects like the emission nebulae Sh2-134 and Sh2-135, the open star cluster NGC 7261 and a bunch of LDNs and LBNs, it turned out as a very nice photo project.

Celestron RASA 8 f/2

Celestron Motorfocuser

EQ6-R Pro

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)

Ha & OIII (IDAS NBZ Filter): 80 × 120″ (2h 40′)

TS 2600 MP Mono (Gain 100, Offset 50, -10°)

Ha: (Baader H-alpha Highspeed Ultra-Narrowband 3.5nm Filter): 70 x 120 (2h 20')

OIII: (Baader OIII Highspeed Ultra-Narrowband 4nm Filter): 140 x 120 (4h 40')

Total: 9 h 40‘

Flats, Darkflats, Dithering

N.I.N.A., Guiding with ZWO ASI 120MM and PHD2

Astropixelprocessor, Photoshop, Pixinsight

North America & Pelican Nebula (2-panel mosaic)

Celestron RASA 8

Celestron Motorfocus

IDAS NBZ Dualband Filter

EQ6-R Pro

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)

25 x 240 secs for each panel

N.I.N.A., Guiding with ZWO ASI 462MC and PHD2

Astropixelprocessor, Photoshop, Pixinsight

Bortle 5

18x300sec.

Dati: 58 x 300 sec a gain 5 e offset 25 @ -15° c + 117 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 11 ° C - Umidità 50%

Sh2-263 is a red HII emission nebula in the constellation of Orion, located in the center of this image. The central star is HD 34989, a blue-white 5.8 magnitude star, located 1700 light-years away. The blue reflection nebula near the center is called vdB-38

Camera: QHY268M

Telescope: 11" Celestron Edge HD with Hyperstar V4

Mount: Orion HDX-110

Filter: Optolong UV/IR cut (Luminance)

60x120sec

Camera: QHY128C

Telescope: AstroTech AT65EDQ

Mount: Orion HDX-110

Filter: Optolong UV/IR cut (RedGreenBlue)

15x480sec

The L+RGB shot from the 2 telescopes were acquired with SGPro and APT, processed in AstroPixelProcessor, Pixinsight & combined in Photoshop 2024

Resolution ............... 1.430 arcsec/px

Rotation ................. -3.498 deg

Reference system ......... ICRS

Observation start time ... 2024-02-01 12:00:00 UTC

Focal distance ........... 532.19 mm

Pixel size ............... 3.69 um

Field of view ............ 2d 20' 48.0" x 1d 31' 50.4"

Image center ............. RA: 5 21 41.606 Dec: +8 24 07.36

Annotated Version: flic.kr/p/2pxbT6x

Date: 0:20JST- May.10, 2021

Location: Amagi Highland, Shizuoka Pref., Japan

Optics: SIGMA 70mm F2.8 DG MACRO | Art (f/3.2)

Mount: RainbowAstro RST-135

Camera: Canon EOS 6D (mod/SEO-SP4)

ISO speed: 1600

Exposure: 15x120sec.x3panel

Processing: PixInsight, AstroPixelProcessor

NGC 7822, a region of active star formation toward the constellation Cepheus with some amazing details of pillars and dust lanes.

70 total exposures in three mosaic tiles, 6 min. each (total 7.5 hours). Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI2600MM monochrome CMOS camera, 7nm H-alpha filter, iOptron CEM25P mount, ASIAir controller, auto-guided. Processed in Astro Pixel Processor and Lightroom

#deepsky #astrophotography

10x300sec.

10 hours RGB plus 3 hours dual band data over 3 nights 4-6th April 2021

Skywatcher 200pds

Altair Astro 294c

Optolong L-eXtreme dual band filter

Stacked in Astropixelprocessor

Processed in PixInsight and Photoshop

h + chi, the famous double cluster in the constellation Perseus. The object was already know to the greek astronomer Hipparchus 130 B.C.

Object: h + chi Persei (NGC 869 + NGC 884, Perseus Double Cluster)

Optics: GSO Newton 8" F4 + GPU

Mount: Celestron CGEM

Camera: ZWO ASI 1600MMC @-20°C, Gain=75, Offset=15

Filter: ZWO EFW 7x36mm, ZWO 36mm Filters

Exposure: total ~1h, R 40x30sec, G 40x30sec, B 40x30sec, L (mixed from RGB), 200 Bias, 40 Darks, 40 Flats per channel

Date: 2017-10-16

Location: Schwaig

Capture: Sequence Generator Pro

Guiding: Off-Axis, ASI120MM, PHD2

Image Acquisition: Stephan Schurig

Image Processing: Stephan Schurig

AstroPixelProcessor 1.070: Calibration, Registration, Normalization, Integration, Channel Combination, Background Flattening & Calibration, Star Colors Correction, Auto Digital Development

Photoshop 20.0.1: Levels, Curves, Exposure (Gamma, Offset, Exposure), Masked Nik Dfine 2 Denoise, Masked Dynamic (Dynamic, Saturation), Star Shrink, Masked HighPass Sharpening, Levels

RA: 03h47m00.00s

Dec: 24°07'01.20"

Constellation: Taurus

Designation: M45

Image Details: 180x90S at Gain 0

Darks: 101 Frames

Flats: 101 Frames

Bias: 201 Frames

Acquisition Dates: Dec. 12, 2020 , Jan. 9, 2021 , Feb. 9, 2021 , Feb. 10, 2021

Total Capture time: 4.5 Hours

Equipment Details:

Imaging Camera: ZWO ASI Cameras ASI6200MC Pro 62mpx Full Frame OSC

Imaging Scope: Sharpstar Optics 15028HNT Hyperboloid Astrograph

Guide Camera: Starlight Xpress Ltd Lodestar X2

Guide Scope: 365Astronomy.com 280mm Guide Scope

Mount: Sky-Watcher EQ8 Pro

Focuser: Primalucelab Sesto Senso V2

Filter: Optolong Astronomy Filter L-Pro 2"

Power and USB Control: Pegasus Astro USB Ultimate Hub Pro

Acquisition Software: Main Sequence Software. Sequence Generator Pro 3.2

Calibration and Stacking: Astro Pixel Processor

Processing Software: PixInsight 1.8.8 and EZ Processing Suite for Star Reduction

Full Size Image

Astrobin: www.astrobin.com/1m3rgl

Even when it's not cloudy in Scotland, the sky never gets dark enough at this time of year to allow the observing of Deep Sky Objects. Therefore, on 22 May 2023, in order to capture this image of the recent supernova (SN 2023ixf) in the Pinwheel Galaxy (Messier 101), I logged on to iTelescope T11 in the Utah Desert Remote Observatory.

Equipment: Planewave 20" (0.51m) CDK OTA, FLI ProLine PL11002M CCD camera, Planewave Ascension 200HR mount.

Data: Luminance = 3 x 180 seconds; RGB = 3 x 120 seconds per filter.

Processed using AstroPixelProcessor and Adobe Photoshop.

Sky-Watcher Quattro 150P f/3.5

QHYCCD Minicam8

HSO

30 x 60sec. each filter.

Processed with Astro Pixel Processor, NoiseXTerminator and Affinity Photo.

Altair Astro 294c

Skywatcher 200pds

160x120s total integration

Stacked in AstroPixelProcessor

Processed in PixInsight and Photoshop

I captured this image of Albireo, one of the main, visible stars in the constellation of Cygnus. Actually, make that two as it is a double star. They stand out brightly against the glittering backdrop of the Cygnus Star Cloud.

Albireo A is the larger, amber star and Albireo B is the smaller sapphire blue star. If they are orbiting each other the orbital period is at least 75,000 years.

It turns out that Albireo A is itself a binary star with the components orbiting every 100 years. This whole system is a mere 380 light years away. You could almost touch it - if you had long arms.

The amber star is about 50 times the size of our sun and shines 950 times as bright. The little blue star is only 3 times the mass of our sun and only shines 190 times as bright.

This is a combination of 62 ten-second exposures using my C11. Any longer and the bright stars would have been way over exposed, any less and the background stars would not have shown up.

~~~~~

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Plus 256G

Main Camera: ZWO ASI533MC Pro at -10C

Filter: ZWO UV/IR Cut filter

Focuser: ZWO EAF

Guide Camera: ZWO ASI174MM Mini guidecam

Guide via: ZWO OAG

Stacked from:

Lights 62 at 10 seconds, gain 101, temp -10C

Darks 30 at 10 seconds, gain 101, temp -10C

Flat 30 at 570 ms, gain 101, temp -10C

Dark Flat 30 at 570 ms gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Added captions in Photoshop CS4

25x300s, 200-500mm f/5.6 @500mm

Comet C/2023 A3 (Tsuchinshan-ATLAS) October 16, 2024.

30 frames, 60 sec. each (30 min. total)

Explore Scientific ED102 102mm f/7 apochromat refractor, Stellarvue 0.8x reducer/flattener

ZWO ASI294MC Pro cooled color CMOS camera, gain 120, -18ºC, ZWO UV/IR cutoff filter

ZWO EAF autofocuser

iOptron CEM25P mount

ZWO ASIAir Pro controller

auto-guided, SVBONY SV2165 30mm f/4 guide scope, ZWO ASI120MM Mini guide camera

Processed in Astro Pixel Processor, Lightroom, Photoshop

22x100sec.

Comet C/2020 F3 NEOWISE cruising thought the constellation Auriga and about to enter the Lynx constellation. It has an orbital period of roughly 6.800 years, which means it was last seen around 4.800 B.C. At its closest point to the Sun, it's only 44 million kilometers away from it. At its furthest point from the sun, which it will reach in about 3.400 years, it'll be 107 billion kilometers away from it. Currently the comet is a naked-eye comet, meaning you can spot it in the night sky without the aid of binoculars or telescopes.

Object Information

* First frame date : 12-07-2020

* First frame time (local): 03:11

* First frame time (UTC): 01:11

* Distance from Earth : 129.540.000km

* Distance from Sun : 58.558.000km

* Last frame date : 12-07-2020

* Last frame time (local): 03:19

* Last frame time (UTC): 01:19

* Distance from Earth : 129.515.000km

* Distance from Sun : 58.574.000km

Shooting Location :

* 51° N 3° E

* Noordstrand, Oostende

* bortle class 6 beach

Hardware

* Imaging Lens : Canon EF 70-200mm f/2.8 L II IS USM @ 200mm

* Imaging Camera : Canon EOS 6D Mark II

Exposures

* ISO speed : 1600

* Aperture setting : f/2.8

* Shutter speed : 2 seconds

* Light Frames : 77x

* Total Integration Time : 154 sec

Capture Software

* built-in intervalometer

Processing Software

* AstroPixelProcessor (Registration & stacking)

* PixInsight (Stretching)

* Topaz DeNoise AI (Noise reduction)

* Adobe Photoshop (Fine-tuning)

M44 IC4665 Summer Beehive Cluster

This is a first light from a revamped setup where the camera and mount have been upgraded. The conditions were not ideal, the wind was moderate with gusts up to 16mph and the ambient temperature was in the teens deg C.

Processing didn't go as smoothly as I had originally hoped, with Pixinsight failing to register red and green filter lights. AstroPixelProcessor struggled with the light pollution mainly contained within the luminescence frames, however I was pleased with the the inital performance of the ZWO ASI533MM Pro.

Frames taken on June 6, 2023

Mount: iOptron CEM40G

OTA Imaging: Skywatcher 120ED with x0.85 flattener, f6.35, 768mm

Camera:ZWO ASI533MM Pro, Cooled to -10 deg C

Filter Wheel: ZWO EFW Mini

Focuser: Primaluce Lab ESATTO

Rotator: Primaluce Lab ARCO

Guiding: iOptron iGuide, 120mm : 2.9um

Computer: Primaluce Lab Eagle Pro 2 + ECCO2 (Enviroment)

Light Exposures:

Luminescence .. 40 x 60 seconds

Red ........... 40 x 60 seconds (2 rejected)

Green ......... 40 x 60 seconds

Blue .......... 40 x 60 seconds (5 rejected)

Calibration files:

BIAS .......... 100

Dark .......... 25

Flat .......... 25 per filter

Dark flat ..... 25 per filter

Total integration time: 2.55 hours

Processing

AstroPixelProcessor -> Photosphop -> Topaz DeNoise AI -> Photoshop

Center (RA, Dec): (266.608, 5.724)

Center (RA, hms): 17h 46m 25.849s

Center (Dec, dms): +05° 43' 25.817"

Size: 50.5 x 50.5 arcmin

Radius: 0.595 deg

Pixel scale: 1.01 arcsec/pixel

Orientation: Up is -179.1 degrees E of N

Tried a new technique to capture Andromeda, 79 shots of 30 seconds exposure at ISO 10,000, stacked in Astro Pixel Processor. I would have taken more but the fog rolled in and crashed the party ;)

Nikon D500 - Nikkor 500mm f4 AI-P - Celestron CGEM

Flickr Explore & Astrobin Image of the day 27 aug 2017:

www.astrobin.com/307683/D/?nc=iotd

Image of the week feb 5, 2018 on PhotographingSpace:

photographingspace.com/iotw-feb-5-2018/

Building further on the 48 (50) panel mosaic i added a row of 16 panels to include the Veil nebula Complex.The registration RMS error is only 0.1 pixel.......

As a basis for this Mosaic I used 70 separate stacks (also made with APP) with integration times between 45 and 345 minutes each depending on the object in the frame. An all new mosaic registration algorithm was used that is capable of truly sub pixel perfect registration of these large Mosaics. And the whole process is fully Automatic. The full size version is 29320x35386 pixels giving 1038 Megapixels).

That is not practicle for web use, but this upload is a 50% reduction and still a 120 Megabyte JPG.

You can download the 50% version by selecting the downloadlink here on Flickr.

Processing: only histogam stretch and curves adjustments, nothing else.

The Fits file size of the full version is 3.7 Gb.

Data collected between may 8 and july 31, 2017.

Esprit 100 Triplet APO f5.5 telescope and QHY16200 CCD Camera cooled to -20 C with Baader 6nm H-alpha filter.

Mosaic settings APP with version 1.0521 (Experimental version to test new Algorithm):

3) Analyse stars

min size: 4

Clip Prof: 0.1

Filter profile: off

Kappa: 3 (set to detect 3000-5000 stars)

4) Register

Pattern recognition: pentagons

scale start: 5

scale stop: 10

use dynamic distortion corr: on

same camera and optics: off

Distortion margin: 0.02

# of overlapping frames: 9

registration mode: mosaic

registration model: projective

6) Integrate

composition mode: full

LNC degree: 4)

LNC it: 3

enable MBB: on

MBB%: 5

No under/overshoot on

Integrate set scale 1.0

The Astro Pixel Processor website: www.astropixelprocessor.com/

More versions and information on : www.astrobin.com/307683/C/

Knight Observatory, Tomar.

(Explore)

24x300sec.

Altair 294c

60x60s, 45x120s

Stacked in AstroPixelProcessor

Processed in PixInsight

Finished in Photoshop

Taken from my driveway in Durham, NC over two nights. Stellarvue 102T scope, Atik 460ex camera, .8 focal reducer, Atlas Pro mount, Lodestar X2 guide camera, Orion 50mm guide scope, Astrodon 5nm Ha, OIII, and SII filters. Ha: 48 x 5 minutes exposures = 4 hours, OIII: 24 x 5 minutes exposures = 2 hours, S2: 24 x 5 minutes exposures = 2 hours. Sequence Generator Pro, PHD 2, Pixinsight, Photoshop CC. Trees limit the number of hours I can get this target. HOS palette in Astropixelprocessor.

Pleiades (M45) - Celestron Origin

© Julian Köpke