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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
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
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)
IC1396 The Elephant Trunk Nebula
This is a reprocess of last years capture. A friend asked for an acrylic print 1200mm x 800mm, so I used what have learned in post processing since last year to improve the image for the 100MP size needed for print.
The Elephant’s Trunk Nebula is a dense region of dust and gas found within the considerably larger star forming region IC 1396 in Cepheus constellation. Designated IC 1396A, the elongated globule of dust and gas was named the Elephant’s Trunk because it resembles an elephant’s head and trunk at visible wavelengths, appearing as a dark patch with a bright winding rim. It is located at a distance of 2,400 light years from Earth.
Taken on 30,31 May, 1,5,6,12,13,14 June 2021
Lunar 78%, 68%, 56%, 18%, 12%, 6%, 12%,18%
Sky Quality 19.67 Magnitude Class 5 Bortle
Astromiks 50mm SHO 6nm Filters
Stacked 13.5hrs out of 16.5hrs for the best quality, 600 minute subs equally of Sii, Ha, and Oiii.
30 x Darks, Flats and Bias
ZWO ASI6200MM Pro
ZWO 7x2" EFW
ZWO EAF
Williams Optics GT81 IV
WO 6A III Field Flattener 0.8
HEQ5 Pro Rowan
ASIAIR Pro
Astro Pixel Processor
Pixinsight
Photoshop 2022
Topaz DeNoise
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
A couple of star-forming gas clouds in our Galaxy, IC 405 aka The Flaming Star Nebula on the left and IC 417 on the right. The greenish fuzz between them is Comet C/2020 M3 (ATLAS) photobombing the scene. The comet is elongated because it moved relative to the stars during the hour or so of total exposure time.
Tech: Nikon D800 (converted to record the light of hydrogen), 200-500mm f/5.6 @500mm, 53 frames each 90 sec., f/8, ISO 5000, iOptron CEM25P mount, stacked in Astro Pixel Processor and post-processed in Lightroom.
Several LDNs and LBNs (LBN 133 & 134, LDN 768, 769, 772, 773, 774, 775, 779) in the constellation Vulpecula form the dark nebula structures that stand out against a carpet of stars and resemble the shape of the "Monster of Loch Ness." Additionally, there are two beautiful reflection nebulae in the area. This object was the perfect target for a moonless, short summer night, combined with the RASA 8 telescope at f/2.
During the editing process, I tried to bring out the delicate structures in the dark nebulae, avoiding creating a nearly completely black area. Moreover, I aimed to preserve and enhance the color variety not only among the larger stars but also among the countless smaller ones to achieve greater depth. I hope you like it!
Celestron RASA 8
Celestron Motorfocuser
EQ6-R Pro
ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)
RGB: 190 x 60" (3h 10')
Darks, Flats, Darkflats, Dithering
N.I.N.A., Guiding: ZWO ASI 120MM & PHD2
Astropixelprocessor, Photoshop, Pixinsight
Prints, cards and more are available via the website: shiny.photo/photo/Sh2-132-The-Lion-Nebula--Cepheus-20c162...
Sh2-132, also known as the "Lion Nebula", is an emission nebula located in the constellation Cepheus. Part of the Sharpless catalog, a list ofH II regions - clouds of glowing gas where star formation occurs.
About 10,000ly distant and 250ly across, Sh2-132 is situated in the Perseus arm of the Milky Way.
The most prominent sources of ionization in Sh2-132 are two Wolf-Rayet stars, which are extremely hot and massive stars nearing the end of their lives. These stars emit intense stellar winds shaping the surrounding gas into intricate structures.
Another of those occasions where one tries to match the DSS image of the Ha emission pattern resembling a lion with how the data looks. Make the OIII too bright a blue and it becomes a cut-'n'-shut with the front and rear ends too separate... It's also about the fine veins and blobs of dark nebulae - lanes of dust in the foreground.
4hr35min total integration with the IDAS NBZ dual-narrowband (Ha + OIII) filter, from which I extracted the Ha & OIII data separately using APP and recombined in PI.
Several clear nights back to back and an increasingly less bothersome Moon! This prompted me to revisit one of my favourite summer objects. This is the western side of the Veil Nebula, ngc 6960. Imaged in the one hour of darkness between astronomical darkness and Moon rise.
Equipment. Skywatcher 25cm Quattro. Skywatcher EQ6 mount with autoguider. QHY8L one shot colour camera.
Software. APT for Plate solving, framing and capture. PHD2 for guiding. AstroPixelProcessor for processing and Photoshop CC for a final polish.
6 x 10 minute exposures at -24c along with flats, dark flats and bias frames.