M: Pegasus NYX-101

T: WO GTF81 Refractor

C: ZWO ASI533MM-Cooled

G: OAG and PHD2

GC: ZWO ASI120MC

RAW16; FITs

Temp: -10 DegC

Ha: Gain 100; Exp: 10 x 600s

Oiii: Gain 100; Exp: 9 x 600s

Sii: Gain 100; Exp: 8 x 600s

Frames: 27 Lights; Darks/DarkFlats/Flats

Total Exposure: ~4.5 hours

100% Crop

Capture: NINA

Processed: APP; PS.

Sky: No moon, breezy, no cloud.

The Andromeda Galaxy with satellite galaxies M32 (centre right below) and M110 (centre above)

The Andromeda Galaxy (IPA: /ænˈdrɒmɪdə/), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy with diameter of about 46.56 kiloparsecs (152,000 light-years)[8] approximately 2.5 million light-years (765 kiloparsecs) from Earth and the nearest large galaxy to the Milky Way. The galaxy's name stems from the area of Earth's sky in which it appears, the constellation of Andromeda, which itself is named after the princess who was the wife of Perseus in Greek mythology. (Wikipedia)

Mount: Sky Watcher “Star Adventure 2i”

Guiding: N/A

Filter: N/A

Camera: Canon EOS R7 (None modified)

Canon EF 70-200mm L USM f2.8 IS

Focal length: 200mm

125 frames - ISO 640 - f3.2 - 60 second

Darks: 15

Flats: 15

DarkFlats: N/A

Bios: 15

Bortle 5.5

Processing: AstroPixelProcessor > Photoshop >Topaz > Photoshop

The Iris Nebula

At 1300 light years away and 6 light years across, The Iris Nebula, NGC7203, is a bright reflection nebula located in the constellation Cepheus. The light emitted by the star cluster in the centre of this nebula, reflects from the interstellar dust and gives the blue colour, and due to the resemblance with the iris flower, the name of this object. The brownish area around the reflection nebula consist of “space dust” blocking the light from the stars behind it creating blank, dark areas.

Taken 10 to 13 August 2022 from my Back garden, 98% to 96% Moon, so a challenging capture, but with frequent poor weather you just have to go for it! First time trying to expose the dust in post processing so many attempts, versions and exploring techniques before settling on this result.

Total exposure 15 hours

L = 180 x 90s

R = 60 x 60s + 30 x 300s

B = 60 x 60s + 30 x 300s

G = 60 x 60s + 30 x 300s

Astromiks 36mm SHO 6nm Filters

30 x Darks for each exposure time, Flats and Dark Flats for each filter

ZWO ASI294MM Pro 120 gain, -10C

ZWO 7x36mm EFW

ZWO EAF

Stellalyra 8” Ritchey-Chrétien Carbon

EQ6-Pro

ASIAIR Plus

Astro Pixel Processor

Pixinsight

Photoshop 2022

Comet C/2023 A3 (Tsuchinshan-ATLAS) October 20, 2024.

24 frames, 60 sec. each

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

ZWO ASI294MC Pro cooled color CMOS camera, gain 120, -17ºC, 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, Adobe Photoshop Lightroom

#comet #TsuchinshanATLAS #astrophotography

Yesterday night we had clear sky again so I took my new toy out again to try some longer frames (180 each frame). I know it looks quite colourful but I think I like it. Need to learn more and better processing :-)

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away in the constellation Ursa Major. It has a D25 isophotal diameter of 29.44 kiloparsecs (96,000 light-years).[2][5] Because of its relative proximity to the Milky Way galaxy, large size, and active galactic nucleus (which harbors a 70 million M☉[6] supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also makes it a popular target for amateur astronomers.[7] In late February 2022, astronomers reported that M81 may be the source of FRB 20200120E, a repeating fast radio burst.[8][9]

(Wikipedia)

Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. It is the second-largest member of the M81 Group, with the D25 isophotal diameter of 12.52 kiloparsecs (40,800 light-years).[1][5] It is about five times more luminous than the Milky Way and its central region is about one hundred times more luminous.[7] The starburst activity is thought to have been triggered by interaction with neighboring galaxy M81. As one of the closest starburst galaxies to Earth, M82 is the prototypical example of this galaxy type.[7][a] SN 2014J, a type Ia supernova, was discovered in the galaxy on 21 January 2014.[8][9][10] In 2014, in studying M82, scientists discovered the brightest pulsar yet known, designated M82 X-2.[11][12][13]

(Wikipedia)

Mount: SkyWatcher HEQ5 Pro

Guiding: ZWO ASI 120MM Mini USB 2.0 Mono Camera - Orion 50mm Guide Scope

Filter: Astronomik CLS CCD EOS APS-C Clip-Filter

Camera: Canon EOS 70D (full spectrum modified)

Sigma 150-600mm f/5-6.3 DG OS HSM (Contemporary)

Focal length: 600mm

105 x 180 seconds frames - ISO 500 - f6.3

5hr 25" total Integration

Darks: 15 frames

Flats: 20 frames

Bios: 15 frames

DarkFlats: N/A

Bortle 5.5

Apps: N.I.N.A. > PHD2 > ASCOM

Processing: AstroPixelProcessor > Photoshop >Topaz > Photoshop

I have added Sii and more Oiii narrowband to an earlier image of this shot in HOO + L and RGB for stars. The longest capture time for me so far totalling 35.5 hours,.

The Bubble Nebula is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbour, Alpha Centauri – and resides 7,100 light-years from Earth in the constellation Cassiopeia. For perspective, I worked out that it would take a Voyager Spacecraft about 140,000 years to travel across the Bubble Nebula.

Ha, Oiii, LRGB 6 to 10 August 2022 -Moon 50% to 96% but nice and low and setting during the sessions. Sii and more Oiii 21,22,26,31 August 2022 - Moon 29% to 18%.

RGB Stars 60s x 30 for each filter

L 60s x 180 + 120s x 51

Sii 300s x 77

Ha 300s x 118

Oiii 300s x 153

35.5 hours total

Astromiks 36mm SHO 6nm Filters

30 x Darks, Flats (for each filter) and Dark Flats

ZWO ASI294MM Pro 120 gain, -10C

ZWO 7x36mm EFW

ZWO EAF

Stellalyra 8” Ritchey-Chrétien Carbon

EQ6-Pro

ASIAIR Plus

Astro Pixel Processor

Pixinsight

Photoshop 2022

Dati: 64 x 3 min. 800 Iso + 15 Dark software: AstroPixelProcessor e Photoshop Strumenti: ottica Nikkor 35 mm f/1.8 @ f/2.8 (circa) su Skywatcher EQ6 pro - Canon 40D CentralDS. 01/07/2022 - Temp. esterna: 20° Umidità 30%

Dati: 85 x 300 sec ( 7 ore) gain 5 @ -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: asi120mm su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 12 ° C - Umidità 95%

A first attempt at the well-known triangle of galaxies known as the Leo Triplet.

On the top, NGC3628 aka the Hamburger galaxy; below, M66 and M65.

I'm particularly pleased to have got 3 extra bonus galaxies in the frame: right up in the top-left the tiny fuzzy IC2782, with IC2776 just below and IC2763 in the middle of the left edge of the frame.

Nearly two hours' data, Altair 26C at gain 100 with Neodymium filter, 3-minute subs, and plenty darks+flats+bias calibrations as well.

After another clear night I had a chance to put together a little gallery of the flyby of Comet C/2022 E3 (ZTF). While there are variations in color and brightness due to differences in exposures and processing, it does show dramatic changes as the comet moved through the Solar System. Some of the variation is due to changes in the comet's structure, while others are because of our seeing it from different perspectives. The top two are before closest approach to Earth and the bottom two just after.

The region of the Cone Nebula (NGC 2264) in the constellation Monoceros, a large complex of dust and gas forming new stars. At bottom right is another feature, a much smaller cloud of mostly dust (NGC 2261) reflecting light from a star. The star's brightness varies so the reflected light does too. For this reason it's known as Hubble's Variable Nebula, named after Edwin Hubble, the astronomer who discovered it, not the orbiting telescope.

Dati: 24 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: 22 ° C - Umidità 45%

Well, that's a surprise! Sure looks like a bright meteor photobombed my latest image of Comet C/2023 A3 taken through my smaller telescope. At least I'm pretty sure it's a meteor. I thought it could have been a bright satellite glint or aircraft, many of which inhabit a large fraction of my images. But I couldn't find a bright satellite at this location and time in SkySafari, which maintains an accurate list, and It doesn't really look like an aircraft trail, which usually have multiple solid streaks with shorter dashes from the flashing lights.

It appeared in one of 90 60 second frames taken on the evening of November 1st from suburban Bloomington, Indiana. This is a composite of the frames, combined to register on the comet moving against the stars, and again to register on the stars. The single frame with the meteor was added as a separate layer.

#astrophotography #comet

Explore Scientific ED102 102mm f/7 apochromat refractor

ZWO ASI294MC Pro cooled color CMOS camera, gain 120, -20ºC, 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, and Photoshop

Tomada el 26/03/2018 00:00

Canon 6D - Filtro Optolong L-Pro - Star Adventurer

16 tomas de 120s - No hay archivos de calibración

ISO 800 - Lente Sigma 70/300 APO en 200mm @f/8 - Crop 2945 x 2166

Procesado: AstroPixelProcessor y Lightroom

Date: 01:10-03:20JST Oct. 2, 2022

Location: Shirahama Beach, Chiba Pref., Japan

Cloud Coverage: < 5%

Temperature: 18.7C ~ 19.5C

Humidity: 87% ~ 92%

Wind: 2 ~ 6kt

Lens: SIGMA 135mm F1.8 DG HSM | Art (f/2.2)

Mount: UNITEC SWAT-350 V-spec Premium

Autoguider: Unguided

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

ISO speed: 1600

Exposure: 30x120sec.x2panels

Processing: PixInsight, AstroPixelProcessor

A region of the sky particularly rich in galaxies, known as the Virgo Cluster and including several prominent members catalogued long ago: M884, M86, M87, M88, M89, M90, and M91, in addition to numerous others smaller and fainter galaxies. The arc of galaxies on the right is sometimes called Markarian's Chain.

2x3 mosaic each tile consisting of up to 30 exposures of five minutes each. 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.

✨ Exploring the Cosmic Continent ✨

Captured the breathtaking North America Nebula (NGC 7000) in all its glory! 🌌 This vast emission nebula, located in the constellation Cygnus, gets its name from its striking resemblance to the North American continent. The deep red hues come from ionized hydrogen gas, glowing under the intense radiation of nearby stars.

🔭 Gear & Processing:

Camera: QHY268m

Telescope: Askar 185 APO

Mount: EQ8-R

Filters: RGB & SHO (Sulfur, Hydrogen, Oxygen)

Processing: Astropixelprocessor, PixInsight & Photoshop

NGC 7000 spans about 120 x 100 arcminutes in the sky and is estimated to be 1,800–3,000 light-years away. Its intricate structure is shaped by dark interstellar dust clouds, creating the iconic "Gulf of Mexico" region visible in the nebula2.

Astrophotography allows us to unveil the hidden beauty of the cosmos—each image is a glimpse into the vastness of space. 🚀✨

What do you think of this celestial masterpiece? Let me know in the comments!

Messier 27 (M27), also known as the Dumbbell Nebula, Diabolo Nebula or Apple Core Nebula, is a planetary nebula in Vulpecula. The Dumbbell Nebula is extensive and bright, making it popular among amateur astronomers. It can be seen in binoculars and small telescopes.

The nebula covers an area of 8 by 5.6 arc minutes of the apparent sky and has a linear radius of 1.44 light years. Its faint halo stretches out to more than 15 arc minutes. M27 lies approximately 1,360 light years, or 417 parsecs, from Earth and has an apparent magnitude of 7.5. It has the designation NGC 6853 in the New General Catalogue.

Source: www.messier-objects.com/messier-27-dumbbell-nebula/

Imaging session: September 15, 2023

Sky quality:l Bortle 5 (approx.)

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 (Environment)

Light Exposures:

Luminescence .. 25 x 180s

Red ........... 25 x 180s

Green ......... 25 x 180s

Blue .......... 23 x 180s (The weather curtailed the last two blue exposures.)

Calibration files:

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

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

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

Dark flat ..... 25 per filter

Total integration time: 4.9 hours

Processing

Method eg AstroPixelProcessor -> Topaz DeNoise AI -> -> Topaz SharpenAI -> Photoshop

Andromeda Galaxy is the nearest major galaxy to our own Milky Way. Due to gravitational forces, we are currently hurtling towards each other through space at a speed of around 402,000kph and are expected to collide with each other in around ~4.5 billion years. We will then become what astronomers have nicknamed "Milkdromeda".

🌀🌠🌌🌟

Image Information

Telescope: Astro-Physics RH-305 | f3.8

Camera: FLI Microline ML8300 CCD

Mount: Paramount ME

Exposure Details: L50x300 / 30x30 sec, R33x300, G44x300, B21x300

Imaged at Deep Sky West Observatory, Rowe, New Mexico

Post-Processing: AstroPixelProcessor, PS

Mosaic Antares IC 4606 and IC 4592. Panorama of 31 tiles, 630 million pixels. Farm Kiripotib, Namibia.

© Julian Köpke

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

Dati: 32 x 300 sec a gain 5 e offset 25 a -10° c + 26 dark + 25 flat e darkflat

Filtro Astronomik UV/IR Block L2

M45

William Optics Redcat 51

Atik Horizon

20x180s RGB

Same framing and process as a week ago, but this time I shot 20 x 30 second subs from some better Bortle 3 skies, and NEOWISE was about 15 degrees above the horizon, which made a big difference - the background sky gradient was less severe, the green color of the nucleus is showing and there are more stars (and spiral galaxy NGC 3198, 6.5 arc min long with a visual mag. of 10.3 is just visible in the upper lefthand corner).

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 20 x 30 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken July 20, 2020 from Bortle 3 skies at 11:00 pm Pacific (the beginning of astronomic dark).

This is a very interesting field to shoot. There's a lot going on! On the right side, you have the Deer Lick Group. The main member is NGC 7331, called the Deer Lick Galaxy. Surrounding it are 4 smaller companion galaxies referred to as the "fleas".

On the lower left hand side you can see Stephan's Quintet, which is a group of 5 distant galaxies. 1 of them isn't part of the actual group and is merely in the line of sight, but the other 4 galaxies are all close together in the same compact group and are in the process of colliding and merging. Close examination shows they're already well entrenched into their gravitational spiral, throwing off dust, gas and stars as the orbit each other ever more closely, as well as triggering massive star formation.

If you search around closely, you can see a few more faint, distant galaxies in the background.

This image has been a pain to acquire. Every time I was on this target, I was plagued with haze, thin cloud, or just mysterious technical issues affecting my tracking. Despite shooting over 4 hours of this field over the last couple of weeks, only a measly 114 minutes of integration made it into this final image. Less than I would have wanted, but I've put enough time into this target for now and it's time to move on.

Acquisition data:

Optics: Sky-Watcher Quattro 250P f/4

Mount: Celestron CGX

Guiding: Orion Starshoot SSAG and Mini Guide Scope

Camera: ZWO ASI 1600MC Pro

Processing: AstroPixelProcessor, PixInsight and Photoshop CC

57 x 2 minute exposures

Shot at Camden Lake Provincial Wildlife Area and the Dark Sky Viewing Area, both in Lennox and Addington county in eastern Ontario.

This image of NGC1499 was generated from the monthly image data given to iTelescope subscribers. The data was captured on their T80 telescope at E-Eye Fregenal de la Sierra on 27/10/2023.Because so few files had already been calibrated, the master files were created in AstroPixelProcessor before being processed in Pixinsight. The image is made up from 6 x LRGB 180s subframes giving a total integration time of 1.2 hours.

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 25 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken just before astronomic dawn on Mar. 22, 2020 from Bortle 2 skies.

At my latitude, this region of the sky only gets about 17 degrees above the horizon - every time I've shot it I've had thin clouds and haze to deal with. This time was no different - I wasn't able to use most subs because of thin cloud cover.

This H-Alpha image shows the Hydrogen Nebulosity near the Monster Star Gamma Cas in Cassiopeia. (40,000 times more luminous than the Sun)

This image is a stack of 100 exposures 15 minutes each through a Ha filter. Esprit 100 refractor+ QHY16200 CCD @ -20C.

(8,11,12 june+ 5,6,9,10,11,12,13,14 november 2017.)

Knight Observatory, Tomar

Lately I have been working a lot with Astropixelprocessor. With this software I have been starting to redo some of my data to see if I could catch more details. I'm astonished about the performance of this program to be honest. The stacked results showed smaller stars, more details and less noise.

This image shows SH2-155 aka the Cave nebula which consists of 215 images! With APP I was able to integrate my Luminance, H-alpha and UHC data to get really the most out of the data.

I'm very happy with the result that came out. The colours of the stars were as I liked them to be and somehow it resulted (in my opinion) in a very colourfull representation of this beautiful region in the sky.

Exposure info:

Telescope: TMB92

Camera: QSI583ws

Lum: 96x300s + 15x600s

Ha: 42x1200s

UHC: 35x600s

R,G,B: 9,9,9x600s

Total: 34,8 hours

Imaged over 2 nights in January 2019, near Cambridge UK.

Image Details:

8 hours 45 mins total exposure.

15 x 300s Red 1x1 (1 hours 15mins)

15 x 300s Green 1x1 (1 hours 15mins)

15 x 300s Blue 1x1 (1 hours 15mins)

3 x 600 and 12 x 1200s Ha (5 hours)

Scope - Altair Astro Wave Series 115mm Refractor, Planostar 0.79x reduced to 642mm/F5.54.

Sensor - Atik 383l+ Mono CCD + Baader Ha and RGB filters. -20degC.

Scale - 1.73 arcsec/pixel.

Mount - Altair Astro Pier mounted iOptron CEM60.

Guiding - Lodestar X2 and SX OAG with PHD2.

Sequence Generator Pro

PixInsight and AstroPixelProcessor (mosaic construction).

Thanks for looking.

This is IC 1805, the Heart Nebula in the constellation Cassiopeia. Its nebulosity is extremely faint and not something you'd expect to be able to shoot in full moonlight from a light polluted suburban back yard. But I did thanks to a dual-band filter (L-Enhance) I used for the first time that blocks out all that unwanted light and transmits only the wavelengths specific to certain types of nebulas such as this one.

I used a 90mm f/6 triplet refractor equipped with a field flattener and mounted on an Orion Sirius EQ-G mount. The camera was a modified Canon 6D. Polar alignment, telescope focus, object acquisition, autoguiding, and exposure capture were all done from my iPhone using the ZWO ASIAir Wi-Fi device - an incredible piece of technology.

I combined 45 300s exposures at f/6, ISO 3200, for a total of 3.75 hrs exposure time. Images and calibration frames were stacked in Astro Pixel Processor and finished in Lightroom and Photoshop.

And just in time for Valentine's Day.

M101 is about 25 million lightyears away from us. Its spiral arms show several "knots" that are regions of star forming.

101 x 180s @ ISO 800

Pentax K3ii and TS 130/910 APO

This is the version stacked with AstroPixelProcessor.

Here's my interpretation of the well-known Rosette Nebula. It's a composite of images over two nights from my back yard in suburban Bloomington, Indiana. It includes images made using two filters that primarily isolate the light emitted by the elements sulfur (red), hydrogen (emitted as red but shown here in green), and oxygen (blue), similar to many of the images of such objects made by the Hubble Space Telescope.

This is another vast region of dust and gas, mostly hydrogen, excited to glow by the bright, hot, young stars in the center. Another generation of stars is undoubtedly forming in the denser areas of remnant material. This includes several catalogued objects including NGC 2238, NGC 2239, NGC 2244, and NGC 2252.

120 exposures, 6 minutes each, Explore Scientific 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI294MC 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

NGC 2903 is a field barred spiral galaxy about 30 million light-years away in the constellation Leo. NGC 2905 is a bright star cloud within this galaxy. The small diffuse galaxy to the left is UGC 5086 at 18mag.

Object: NGC 2903

Optics: Celestron 9.25 F6.3

Mount: Sky-Watcher EQ6-R

Camera: ZWO ASI 071MC Pro @-20°C, Gain=0

Exposure: total ~2h, RGGB 30x240sec, 300 Bias, 60 Darks, 40 Flats

Date: 2019-02-24

Location: Schwaig

Capture: Sequence Generator Pro

Guiding: Off-Axis, ASI120MM, PHD2

Image Acquisition: Stephan Schurig

Image Processing: Stephan Schurig

AstroPixelProcessor 1.071: Calibration, Registration, Normalization, Integration, Remove Light Pollution, Background Calibration, Star Colors Correction, Auto Digital Development

Photoshop 20.0.4: Curves, Exposure (Offset), Nik Dfine 2 Denoise (Color Noise), Masked Nik Dfine 2 Denoise (Contrast Noise), Star Shrink, Starless Masked Smart Sharpen, Masked Color Balance, Masked Dynamic (Dynamic, Saturation)

Remarks: ASI 071MC Pro made available by Teleskop-Service, Ransburg

Comet C/2022 E3 (ZTF) passes by Capella, the brightest star in the constellation Auriga. In reality the star is much brighter than the comet, but the relative position in the sky is correct at around 9:30pm EST on Feb. 5, 2023. Separate sets of exposures were used to image the comet and stars.

Bonjour, voici ma petite dernière après avoir passé deux nuits consécutive sur l'Aubrac. Il s'agit de l'oculus qui se trouve aux roc des loups

Cette photo résultat d’un suivi avec empilement sur deux nuits afin de totaliser 1h30 d’intégration pour le ciel. Le soucis venant de Rho Ophiuchi qui à cette période de l’année plonge très rapidement dans l’horizon.

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J’ai optimisé mon flux de travail de la même manière qu’un traitement en ciel profond. Il y a 90 lights (60s - f/2.8 - 1600iso), 50 offsets & 50 flats. Le premier plan quand à lui est une pose de 120s - f/5.6 - 200 iso. L’ensemble au 40mm.

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Prétraitement : AstroPixelProcessor,

Traitement : AstroPixelProcessor, GraXpert, Starnet++, Photoshop

Export : Lightroom

NGC 7635, known as the Bubble Nebula in the constellation Cassiopeia. A dynamic region of gas and dust in the Milky Way. The circular feature is a bubble blown in the material between the stars by the radiation and wind of energetic particles by one of the bright stars inside the bubble. Composite of 84 exposures 6 min. each. totaling 8hr 24min. in the light of hydrogen and oxygen. GSO RC 8" f/10 OTA, ZWO ASI2600MM monochrome cooled CMOS camera, SVBONY H-alpha 7nm filter, SVBONY [OIII] 7nm filter, Losmandy GM811G mount, ZWO ASIAir Pro controller, auto-guided. Processed in Astro Pixel Processor, and Lightroom.

Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 90 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken Sept. 26, 2019 under Bortle 3/4 skies.

This extent contains three frequently imaged nebulae: the Dark Shark Nebula (LDN 1235, center), the dark nebula LDN 1251 (lower left), and the Wolf's Cave nebula, which includes VdB 152, a reflection nebula and LDN 1217, a dark nebula. Other visible objects include the dark nebula LDN 1221 (lower right of VdB 152) and Dengel-Hartl 5, a blue and red planetary nebula (below VdB 152).

I've always loved this extent, which was high on my list of targets for the Samyang 135. I wasn't too happy with my first attempt, but am very happy with this result. Shooting raw, imaging when it was as high as possible, using the "remove light pollution' tool of Astro Pixel Processor, and some more experience processing made the difference.

12 300sec. exposures, Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut filter, iOptron CEM25P mount, ASIAir controller, processed in Astro Pixel Processor and Lightroom.

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

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

#astrophotography #supernovaremnant

I love the juxtaposition of the dark nebulosity in Taurus with the bright Pleiades. Once I figured out mosaics, I knew this would be my second after Orion.

This is a mosaic of 5 different panels taken on two nights, Oct. 2, 2019 and November 20, 2020, 188 x 1 minutes of imagery. All subs were taken with my Fuji X-T10 and Samyang 135 mm on the iOptron SkyTracker Pro. Each sub is 60 seconds, taken at ISO 1600 with the Samyang 135mm open to f2.

I used the same process as that of my previous mosaic of Orion: I integrated individual panels using DeepSkyStacker, and used the 'remove light pollution' tool of Astro Pixel Processor to flatten integrations, which had substantial vignetting from being shot at f2. These flattened panels were then mosaiced with Astro Pixel Processor using the process outlined here: www.astropixelprocessor.com/part-3-register-normalize-int.... Curves adjustment, star reduction, and color tweaking were then done with GIMP. This image is downscaled to 70% of the original mosaic.

The Taurus molecular cloud 1 in the constellation of Taurus is notable for containing many complex molecules, including cyanopolyynes HCnN for n=3,5,7,9.

IC2087 is the white reflection nebula.

Imaging dates:

27 sep 2017,

21,22,23,24,27,28 oct 2017

11,12,15,16,17,18,19,20,21 dec 2017

72x600sec Red, 65x600sec Green, 68x600sec Blue (34hr)

Esprit 100 f5.5/ QHY16200 CCD @ -20C

Knight Observatory, Tomar

It was extremely difficult to image this object in such a way that the typical blue-ish glow in the background came out enough to make the dark clouds "float".

(Explore)

This is data from Oct 29, 2022. I created two videos to show the workflow of pre and post processing the same dataset using Sirilic/Siril and AstroPixelProcessor. The image in this shot was done through APP. Slight adjustments in Photoshop but if you look at the end of the video, the edits are pretty miniscule because I wanted to do some noise reduction (since APP doesn't have one).

Video on processing in APP: www.youtube.com/watch?v=-RMpuJ0I7wI

Video on processing in Sirilic/Siril: www.youtube.com/watch?v=rLGLcuwCBfw

Find more of my videos at: youtube.com/Naztronomy

See this on Astrobin: www.astrobin.com/21ot8k/

Equipment used:

* Astro-Tech AT60ED with the 0.8x Reducer/Flattener on Advanced VX Mount

* Mount controlled via Astroberry

* ZWO ASI533MC Pro

* Svbony 60mm guide scope with ZWO ASI120MM-Mini guide cam

* 28x300Sec

* 30 Darks

* 30 flats for each session

* 35 bias

* All frames were with Gain 101, Offset 70, at -10°C.

* Stacked in AstroPixelProcess and mostly post-processed in APP

* Photoshop: Noise and star reduction

17 hrs RGB data and 15 hrs Ha data collected between Dec 2017 and Feb 2018. Processing done with AstroPixelProcessor and Pixinsight.

Used in this march 2019 article in Astronomy Magazine:

www.astronomy.com/magazine/2019/02/all-about-our-local-su...

en.wikipedia.org/wiki/M81_Group

Esprit100 refractor/ QHY16200 CCD (@-20C)

Knight Observatory, Tomar

(Explore)

NGC 253 - the Sculptor Galaxy - is one of the brightest (and dustiest) spiral galaxies beyond our Milky Way. It is suggested that there is the presence of a supermassive black hole in the centre with a mass estimated to be five million times that of our Sun!

🌀🌠🌌🌟

Image Information

Telescope: Planewave 20" CDK | f4.5

Camera: FLI-PL6303E CCD

Mount: Planewave Ascension 200HR

Camera Sensitivity: L Bin 1x1, RGB Bin 1x1

Exposure Details: L 16 x 300 sec, RGB 21 x 300 sec

Observatory: iTelescope.net at Siding Spring Observatory, NSW, Australia

Date Taken: October/November 2018

Post-Processing: AstroPixelProcessor, PS

I captured the Jellyfish Nebula with narrowband filters in 2022 (Ha & OIII) and did another RGB session only for getting nicer stars. In this new edit I focused on the RGB data and only added very little Ha and OIII to it in order to keep a natural look. Hope you like it!

Celestron RASA 8

Celestron Motorfocuser

EQ6-R Pro

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

RGB: 53 x 120" (1h 46')

Ha & OIII (IDAS NBZ): 73 x 240" (4h 52')

Darks, Flats, Darkflats, Dithering

N.I.N.A., Guiding: ZWO ASI 120MM & PHD2

Astropixelprocessor, Photoshop, Pixinsight

NGC 1499 in Hydrogen Alpha, located about 1.000 lightyears away in the constellation Perseus.

Shooting Location :

* 51° N 3° E

* bortle class 5 backyard

NGC 1499 Information

* Type : Emission Nebula

* Magnitude : 6.0

* Location (J2000.0): RA 04h 03m 18s / DEC +36° 25' 18"

* Approximate distance : 1.000 lightyears

Hardware

* Mount : Celestron CGX

* Imaging Scope : Canon EF 70-200mm f/2.8 L IS II USM @ 135mm f/2.8

* Imaging Camera : ZWO ASI 183MM

* Filter Wheel : ZWO EFW 7*36mm + Baader Ha 7nm, Baader OIII 8.5nm + Baader SII 8.5nm + Baader LRGB

* Guide Scope : -

* Guide Camera : -

Exposures

* Single Exposure Length : 120s

* Sensor Temperature : -20°C

* Gain : 111

* Offset : 10

* Light Frames :

> Baader Ha : 60

* Bias Frames : 50

* Dark Frames : 30

* Flat Frames : -

* Flat Dark Frames : -

* Total Integration Time : 2h00m

* Capture Date : 2019-11-21

Capture Software

* ZWO ASIair

Processing Software

* AstroPixelProcessor

* Adobe Photoshop

* Topaz AI Denoize

This is a cropped version showing just the Galaxy Core right from center and NGC206 blue stars to the left. A total of 17.4 hrs integration time with Red, Green and Blue filters on QHY16200 CCD cooled to -20C attached to Esprit 100 f5.5 refractor. (209 subs of 300 seconds) Imaged on 10,11,12,14,15 & 16 Aug 2018.

Processed with Astropixelprocessor using 2 x Drizzle and 60 Darks, 256 Bias and 25x3 Flatframes. Further processing in Pixinsight (PhotometricColorCalibration, Arcsinh Stretch, Curves, HDRMultiscale, LocalHistogramEqualisation.)

Edit: There is a tiny white annotation showing the location of "The Star that changed the Universe", a Cepheid variable named "V1" by Edwin Hubble. He used V1 in 1923 to prove that the Andromeda "Nebula" was in fact a Galaxy outside our own Milky Way. Also see: hubblesite.org/hubble_discoveries/science_year_in_review/...

Edit2: Extragalactic Nova AT2018fhy is also visible on this image. See this extra upload: www.flickr.com/photos/kees-scherer/44338329531/

Knight Observatory, Tomar