MarsG76
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Everything posted by MarsG76
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WR 134 and the Ring Nebula - the power of progress!
MarsG76 replied to Yoddha's topic in Imaging - Deep Sky
That is a fantastic image.... to answer your question of where we'll be in 6 years?... I suspect up to APT version 7.2... Full AI integration 😉 -
A Star Formation Region East of the Lagoon Nebula - SIIHaOIIIHbLRGB
MarsG76 posted a gallery image in Member's Album
From the album: Deep Sky Imaging
Narrowband and natural color image of a star forming region east of the Lagoon nebula in the Sagittarius constellation. Also known as the "Chinese Dragon" nebula because of the small dark nebula in NGC6559 resembling the shape of a Chinese Dragon. This image was taken through a doublet 80mm refractor (at 500mm focal length) on multiple nights between 26 July until 16 August 2023. The total integration time was 31 hours and 15 minutes of 57x300s of Luminance, 30x120s of Red, 30x120s of Green, 40x120s of Blue, 37x600 of Hα, 24x900 of SII, 36x900 of OIII and 30x600 of Hβ subs.© Mariusz Goralski
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A Star Formation Region East of the Lagoon Nebula - RGB
MarsG76 posted a gallery image in Member's Album
From the album: Deep Sky Imaging
Natural color image of a star forming region east of the Lagoon nebula in the Sagittarius constellation. Also known as the "Chinese Dragon" nebula because of the small dark nebula in NGC6559 resembling the shape of a Chinese Dragon. This image was taken with a QHY268M through a doublet 80mm refractor (at 500mm focal length) between 10-16 August 2023. The total integration time was only 3 hours and 20 minutes of subs, Red (30x120s), Green (30x120s) & Blue (40x120s) subs.© Mariusz Goralski
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From the album: Deep Sky Imaging
The "Eagle" nebula (M16/NGC6611) in the constellation Serpens is also known as the "Star Queen" Nebula and contains a segment known as "The Spire". Both the "Eagle" and the "Star Queen" refer to visual impressions of the dark silhouette near the center of the nebula, the area which was made famous by the 1995 Hubble Space Telescope image known as as the "Pillars of Creation". This image was exposed with a QHY268M through a simple doublet 80mm refractor (at 500mm focal length) as a secondary project during the mornings between 12-24 July 2023 to take advantage of the couple of hours of the night sky after the primary imaged object drifted out of the line of sight. The total integration time was 14 hours and 10 minutes of subs, SII (26x600s), Hα (11x600s) & OIII (20x600s) subs with added 21 subs of 300 second of Luminance, 30x60 second red channel subs, 29x120 second green channel subs and 29x180 second blue channel subs for the star color data.© Mariusz Goralski
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From the album: Deep Sky Imaging
The "Eagle" nebula (M16/NGC6611) in the constellation Serpens is also known as the "Star Queen" Nebula and contains a segment known as "The Spire". Both the "Eagle" and the "Star Queen" refer to visual impressions of the dark silhouette near the center of the nebula, the area which was made famous by the 1995 Hubble Space Telescope image known as as the "Pillars of Creation". This image was exposed with a QHY268M through a simple doublet 80mm refractor (at 500mm focal length) as a secondary project during the mornings between 12-24 July 2023 to take advantage of the couple of hours of the night sky after the primary imaged object drifted out of the line of sight. The total integration time was 9 hours and 50 minutes of subs, 21 subs of 300 second for Luminance, 30 x 60 second subs for the red channel, 29 x 120 second subs for the green channel and 29 x 180 second subs for the blue channel, with aded colorized data of Hα (11x600s) & OIII (20x600s) subs.© Mariusz Goralski
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From the album: Deep Sky Imaging
Messier 55 (also known as NGC 6809) is a globular cluster in the south of the constellation Sagittarius about 17,600 light-years away from Earth. This image was exposed through a 80mm f6.3 refracting telescope with a QHY268M camera. The total integration time for this image through all of the LRGB filters was 3 hours and 50 minutes. Exposures: L:32x300s, R:25x60s G:25x120s B:25x180s @ HCG:62/OFS:25© Mariusz Goralski
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The answer to your frustration is a permanent setup... ever since I built a mini observatory that takes me literally minutes to start astronomy, you'll be able to take advantage of every moment of clarity... when theres a break in the clouds, open up and you're looking up.. if the clouds return, shutdown is just as fast... no setup and pulldown frustration or guess work...
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I had many moments like that, but the clouds will pass... think of all of the great astronomy nights you had while it was clear, and they will return.. but if you give up, know this.. the moment you sell your gear, it'll seem like it's crystal clear nights every night ... want to risk that?
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Hi All, Sharing another of my completed southern sky object images.... The nebulae in this imaged area are is not a popular group of objects or area of the sky being imaged by amateurs... located in the constellation Corona Australis, between γ and ε Coronae Australis and features NGC6726, NGC6729, NGC6727, NGC6723 and IC4812. I suspect that the lack of interest is area is dark and not as vibrant as other more well known and popular objects, but the combination of reflection nebulae crossed by dark nebulae made an interesting image IMHO. I imaged a close up on the blue reflection nebulae back in August 2020 and wanted to expose it at a lower focal length to see what surrounds the blue nebulosity. This image was exposed with a QHY268M through a simple doublet 80mm refractor (at 500mm focal length) over 2 and a half nights, as a 2 plate (heavily overlapped) mosaic so that I would only need to crop out the most distorted edges, retaining the whole original frame size... exposures started just after midnight on 10 July and being completed on the morning of 12 July 2023, for a total integration time of 17 hours and 20 minutes, 8 hours and 40 minutes per plate. Thanks for looking, Clear Skies, MG
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From the album: Deep Sky Imaging
These nebulae are located in the constellation Corona Australis, between γ and ε Coronae Australis and features NGC6726, NGC6729, NGC6727, NGC6723 and IC4812 and is not a popular group of objects or area of the sky to be imaged by amateurs. I imaged a close up on the blue reflection nebulae back in August 2020 and wanted to expose it at a lower focal length to see what surrounds the blue nebulosity. This area is dark and not as vibrant as other more well known and popular objects, but I think that the combination of reflection nebulae crossed by dark nebulae made an interesting image. This image was exposed through a 80mm f6.3 refracting telescope with a QHY268M camera for a total exposure time of 17 hours and 20 minutes. This image was exposed with a QHY268M through a simple doublet 80mm refractor (at 500mm focal length) over 2 and a half nights, as a 2 plate mosaic but heavily overlapping so that I would only need to crop out the most distorted edges, retaining the whole original frame size... exposures started just after midnight on 10 July and being completed on the morning of 12 July 2023, for a total integration time of 17 hours and 20 minutes, 8 hours and 40 minutes per plate.© Mariusz Goralski
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It looks great... doesn't look over processed at all.
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Awesome details... love it.
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Hi All, Sharing with you a quickie image of my Jewel Box Cluster. It is a open star cluster located in the constellation Crux, given the designation "Kappa Crucis". It's windy, and the seeing is horrible, BUT the sky is crystal clear, so I picked a easy and bright target so that a clear sky wasn't wasted... it's a bit soft, but the best guiding I was getting was according to PHD2 was between 1.9 & 2.2" RMS. Imaged on my C8 at f6.3 with the QHY 268M in LRGB. 3hours and 50 minutes of luminance subs and 59 minutes of RGB color data. Clear Skies, MG
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From the album: Deep Sky Imaging
The Jewel Box (also known as the Kappa Crucis Cluster, NGC 4755, or Caldwell 94) is an open cluster in the constellation Crux. This cluster was named the "Jewel Box" by John Herschel when he described its telescopic appearance as "...a superb piece of fancy jewellery". It is easily visible to the naked eye as a hazy star about 1.0° southeast of the first-magnitude star Mimosa (Beta Crucis), given the designation "Kappa Crucis". It is only seen in the Southern Hemisphere from March to August. Imaged using a 8" SCT at f6.3 (1280mm focal length), with a QHY268M camera. The total integration time for this image through all of the LRGB filters was 4 hours and 49 minutes during a windy night when seeing was terrible. Exposures: L:34x300s & 20x120s @ FW:31, R:12x60s G:10x120s B:9x180s @ HCG:62/OFS:25© Mariusz Goralski
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VERY NICE
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Also the coating on the C8 corrector plate rejects a lot of UV wavelength, so we're upto a quadruple whammy.
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It's in other images online, including photos imaged by pros on pro telescopes, so I guess it's a jet... It's also clear as day on my HAlpha stack, so I say it's not an artifact but a jet/some nebulosity in the FOV.
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Yes... I stand corrected.... thanks.
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Ah, so there is a trade off in resolution for brightness... I guess it depends what's more important for a particular project... speed or detail... either system has it's advantages and disadvantages.
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That is SO cool... the animation of the clouds definitely makes this the best earth based imaging work of Venus I have seen in a very long time...
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Love the detail in the atmosphere... this image has a 3D look to it...
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Excellent cloud detail...
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I probably don't need that much integration time to result in the same or similar results, but having a permanent telescope setup allows me to spend extra time exposing through each filter... plus the more subs I stack the greater the SNR resulting in less noise to deal with in processing... I don't think that a C8 at f6.3 is that slow unless comparing to a f2 system like a Hyperstar or RASA with the same primary light gathering mirror... that said, those systems do collect photos from a much wider FOV so I'm not so sure that there would be more signal in an area that is cropped down to the same FOV as is the C8 f6.3 system... although a f2 system at 1280mm focal length would be a beast of a telescope but that would mean that the primary mirror is 2560mm, almost 101", in diameter.
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A good way to look at it...
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Hello All, Sharing with you another image that I finished processing as I'm slowly going through my back log of exposures. This is Centaurus A (NGC 5128), a galaxy in the constellation of Centaurus 13 million lightyears away. NGC 5128 is one of the closest radio galaxies to Earth and is also the fifth-brightest in the sky, making it an ideal amateur astronomy target. The galaxy is only visible from below very low northern latitudes but is best seen or imaged from the southern hemisphere. This photo was imaged using a Celestron C8 and a QHY268M at f6.3 1280mm focal length. Total integration time was 35 hours and 40 minutes, 48x300sec luminance subs through a neodymium filter, 27x120s red, 27x180s green, 27x300s blue, Hα:36x300s, OIII:31x600s & UV:21x1800s filters. Why 35 hours? Because I spent 10.5 hours on exposing the galaxy through my UVenus filter as an experiment to see if I'll pickup anything more than the usual, aiming for a hint of it's (X-Ray) jets, hoping that there might be some kind of a UV remnant of them captured, but NO such luck... the UV data was extremely weak and all it added to the image was very faint deep blue highlights on a very small number of places... so subtle that the image would not be noticed as having anything less if I didn't expose the UV subs... I'm suspecting that the SCT corrector cuts out most of the UV light too... so failed but and experiment I'm glad I did because otherwise I'd be left wondering. Thank for looking, Clear Skies, MG
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