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Found 60 results

  1. 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 and NGC6723. This is not a popular group of objects or part of the sky, but I thought that the combination of reflection nebula crossed by a dark nebulae make an interesting image. This image was exposed through my Celestron 8" SCT (at F10), on the CGEM mount with my full spectrum modded and cooled Canon 40D DSLR for a total exposure time of 5 hours, 59 minutes and 30 seconds.

    © Mariusz Goralski

  2. From the album: Deep Sky Imaging

    This image is a cropped and rotated version of the M16 image to emphasize the famous "Pillars of Creation" part of the nebula, made popular by the HST image of the same name. The color channels are SII, HAlpha and OIII as RGB, and color balanced to remove the heavy green color cast created by the strong Hydrogen Alpha signal. The total exposure time spent on this image was 20 hours and 57 minutes consisting of the following subs exposures: RGB: 13x15s, 19x30s, 17x60s, 12x90s, 17x120s, 15x180s HII: 2x600s, 9x900s, 4x1200s OIII: 1x600s, 8x900s, 1x1200s, 11x1500s SII: 2x500s, 14x1800s All at ISO1600.

    © Mariusz Goralski

  3. From the album: Deep Sky Imaging

    My latest image of the Eagle nebula (M16/NGC6611) in the constellation Serpens, this time imaged through narrowband filters using my 8" Celectron SCT, at F10 - 2032mm focal length, with my astromodded and active peltier cooled Canon 40D DSLR. The color channels are SII, HAlpha and OIII as RGB, and color balanced to remove the heavy green color cast created by the strong Hydrogen Alpha signal. The total exposure time spent on this image was 20 hours and 57 minutes consisting of the following subs exposures: RGB: 13x15s, 19x30s, 17x60s, 12x90s, 17x120s, 15x180s HII: 2x600s, 9x900s, 4x1200s OIII: 1x600s, 8x900s, 1x1200s, 11x1500s SII: 2x500s, 14x1800s All at ISO1600.

    © Mariusz Goralski

  4. MarsG76

    M16 F10 July 2020

    From the album: Deep Sky Imaging

    © Mariusz Goralski

  5. MarsG76

    M16 F10 July 2020

    From the album: Deep Sky Imaging

    © Mariusz Goralski

  6. From the album: Solar System Objects

    Jupiter with two of its moons, Ganymede and Callisto, imaged with a Skyris 618C CCD through a 8" SCT at f33.

    © Mariusz Goralski

  7. From the album: Deep Sky Imaging

    My latest rendition of the Swan/Omega Nebula - M17, imaged for 15 hours & 43 minutes during multiple nights between 26 June and 2 July 2020. This was imaged through SII, HAlpha and OIII filters using my Celestron C8 8" SCT @ f6.3 with the astromodded and cooled Canon 40D DSLR, tracked on a CGEM. This image is combined using the same data as the other except this one is SHO, Hubble Palette, style.

    © Mariusz Goralski

  8. From the album: Deep Sky Imaging

    My latest rendition of the Swan/Omega Nebula - M17, imaged for 15 hours & 43 minutes during multiple nights between 26 June and 2 July 2020. This was imaged through SII, HAlpha and OIII filters using my Celestron C8 8" SCT @ f6.3 with the astromodded and cooled Canon 40D DSLR, tracked on a CGEM. This image is combined using the same data as the other except this one is in HOO style to emulate natural color using the narrowband data.

    © Mariusz Goralski

  9. From the album: Deep Sky Imaging

    Sharing with you my latest image of NGC 6357 in the constellation Scorpius near the better known NGC 6334, AKA the "Cat's Paw" or "Bear Paw" nebula. This nebula was also given the name War and Peace Nebula because of its appearance in infrared images, the bright western part resembles a dove and the eastern part looks like a skull. This photo was taken through my Celestron 8" SCT at f6.3 (1280mm focal length), tracked on a CGEM and exposed using my full spectrum modded and cooled Canon 40D DSLR. This image was a bit of an experiment to see how much improvement in noise and sensitivity will be in my long exposed subs after I redesigned the cooling system on my DSLR.. now the sensor temperature was kept at freezing point. When uncooled the sensor temperature was around 27°-32°C and the first version of the cooling system only cooled and kept the sensor temperature at +/- 1°C of ambience... now with the redesigned cooler, I had the temperature drop to -5°C (from 18°C ambient temp) during test and set the controller to stop cooling at 0°C and start cooling at 1°C when imaging this object. The improvement in subs was substantial, 1800 second ISO1600 subs had almost no noise, only few pure white single pixels of noise within the subs, easily removed with single pixel noise reduction, so I'm more than happy with how my 40D is cooled and the subs it's delivering. This image consists of only my SII and HAlpha subs so it is still a work in progress as I still need to expose the OIII subs to add to the SII and HAlpha frames. The was I assembled the channels was by using the red channel in SII as RED, red channel in HAlpha as GREEN and a added combination of the faint signal captured in both blue channels of SII and HAlpha (Hbeta signal) as BLUE.

    © Mariusz Goralski

  10. From the album: Deep Sky Imaging

    I managed to get some time to process another of my images exposed in January/February 2020. This was the last image when my USB port on my Astro40D failed. This happened while imaging this scene but it happened toward the end of the imaging plan so I got almost the subs that I wanted. The total exposure time was 16 hours and 16 minutes in ISO1600 for all of the subs, RGB, (OSC through the UV/IR Cut filter), HAlpha and OIII. Imaged through my 8" SCT at f6.3, 1280mm FL.

    © Mariusz Goralski

  11. From the album: Deep Sky Imaging

    This is a center crop of Sh2-308, AKA The Dolphin Head Nebula in the constellation "Canis Major". This was imaged through Baader 7.5nm HAlpha & OIII narrowband filters using my full spectrum modded and cooled Canon 40D DSLR and the Bosma 80mm refractor at 500mm focal length. This photo consists of 46x1200s of HII, 35x1200s and 2x600s of OIII and 36x60s, 32x150s and 21x210s of RGB subs @ ISO1600 for a total exposure time of 30.5 hours. This object is very weak in HAlpha signal but very strong in OIII. The benefit of a color camera is that I captured two spectra lines in one exposure, I had OIII signal in the green channel while simultaneously captured HBeta in the blue channel in the stack. I assembled this image as HAlpha as Red, OIII as green and HBeta as blue. The weak HAlpha signal outlined some parts of the bubble (the front of the dolphins head) so even if the HAlpha was weak, it was not a waste of time as it added detail to the image.

    © Mariusz Goralski

  12. From the album: Deep Sky Imaging

    This is a close up of IC 2944, also known as the Running Chicken Nebula or the λ Centauri Nebula, with the Bok Globules visible in the upper third of the frame. IC2944 is an open cluster with an associated emission nebula found in the constellation Centaurus, near the star λ Centauri. This image was exposed using a Cooled as astro modded DSLR through a Celestron 8" SCT at it's native 2032mm (f10) focal length. The total exposure time was 60.5 hours, through HAlpha, SII, OIII and UV/IR excluded natural colour.

    © Mariusz Goralski

  13. From the album: Deep Sky Imaging

    The Sculptor Galaxy, also known as the Silver Coin or Silver Dollar Galaxy, NGC 253, an intermediate, starburst spiral galaxy in the constellation Sculptor, about 11.4 million LY away, undergoing a period of intense star formation. This photo was imaged in natural color through my 8" Celestron SCT at 2032mm focal length using my astro-modded and cooled canon 40D DSLR and tracked with a CGEM mount. I imaged this galaxy when the moon was nearly at first quarter and in the same general direction as the galaxy, so I used the Neodymium filter (AKA Moon and Skyglow filter) instead of the UV/IR Cut filter to try and control the moon glare, I think it worked. Total exposure time was 5 hours 41 minutes.

    © Mariusz Goralski

  14. MarsG76

    M17 - SHO

    From the album: Deep Sky Imaging

    The Omega Nebula, aka The swan Nebula, M17/NGC6618 imaged in Narrowband and combined in Hubble palette style. The photo was imaged with a astromodded and cooled DSLR through a 8" SCT across multiple networks gets from 28 July - 8 August 2019.

    © Mariusz Goralski

  15. MarsG76

    Saturn 17Aug2019

    From the album: Solar System Objects

    Saturn imaged on 17 August 2019 using a C8 SCT, Skyris 618C at f33.

    © Mariusz Goralski

  16. From the album: Solar System Objects

    This collection is of my images of Venus I captured during December 2016 and February 2017 which shows the change in phases as Earth catches up to Venus in the orbit around the Sun. The pictures where cloud details are coming through were captured through a UVenus (UV) filter on the clearer atmospheric condition evenings and used as the blue channel. The rest the channels are IRPass 685nm filter as red and luminance (IrCut filter) as green. All were captured using a DMK618 through a 14" Dobsonian.
  17. From the album: Deep Sky Imaging

    Image of the area around the Tarantula nebula, imaged in RGB. This image consists of a few hours of 5 & 10 minute subs in RGB at ISO400. The Large Megellanic Cloud is visible in the lower right of frame where as the Tarantula is in the upper left. Image was taken with a 80mm refractor at 500mm FL.
  18. From the album: Deep Sky Imaging

    While waiting for the Tarantula to get into imaging position to grab some Ha and OIII subs to add to the previous posted image, I decided to do a quick 47Tuc image. Unfortunately when centered, there was no guide star in the OAG at the current setup, and I did not want to alter the position of the OAG since it was still setup from a previous session to continue on NGC2070... so some unguided subs of the glob had to suffice... it's only 15 x 60sec, 15 x 30sec and 15 x 10sec subs in ISO800 at F10 using the modded Canon 40D. Seeing wasn't the best but surprisingly being unguided the stars were round, fat but round... I guess it's only 60 seconds at longest sub and PA was quite accurate.

    © Mariusz Goralski

  19. MarsG76

    Barnard 33 Region

    From the album: Deep Sky Imaging

    Horsehead and Flame nebulae around the star "Alnitak" in "Orion's Belt" in the constellation of Orion. The nebulae are located approximately 1350LY for Flame nebula and 1500LY for the Horsehead curtain glow nebula. Alnitak is a bit closer at about 1250LY and is the source of light for the glow of the nebulae. The Horsehead nebula is a cold dark nebula silhouetted against the pink hydrogen alpha emission nebula IC434. The Horsehead shape is just the shape of the nebula that blocks that part hydrogen emission of IC434. This image was taken using a full spectrum modded Canon 40D. Image consists of Hbeta, HAlpha and OIII data as well as RGB taken through IR cut and neodymium filters across multiple nights in November and December 2015.

    © Mariusz Goralski

  20. From the album: Deep Sky Imaging

    The Lagoon Nebula (Messier 8, M8 or NGC 6523) is a emission nebula in the constellation Sagittarius, and is estimated to be between 4,000-6,000 light-years from the Earth. This image was taken with a full spectrum modded DSLR through a 80mm refractor for a total exposure time of 1002 minutes through SII, HAlpha and OIII filters.

    © Mariusz Goralski

  21. Hi All, I was lucky enough to have one clear night in between cloudy and rainy weather. It happened to be a moonless night, so between 9pm and just past midnight I grabbed the final subs I needed to finish the NGC1365 barred spiral image (still to be finished-processed) and after those subs were done I wanted to start to image the whole of Orions Sword using my 80mm f6.25 refractor. I captured an hour of 210 second subs, an hour of 180 second subs, 30 mins of 30 second subs and 15 minutes of 15 second subs all on the full spectrum modded Canon 40D at ISO800. For the final processing I selected only the best subs, and thankfully most were near perfect (for my average standards), resulting in me only throwing away a total of 15 minutes of data. The next night I get a another imaging session at Orions Sword (hopefully still when the moon is not lighting things up), I'll grab a stack of Halpha and OIII data to add to this project. I'm curious what the narrowband added to this RGB will result in. Clear skies, MG
  22. Hello Astronomers, I got the Topaz Labs Detail and DeNoise PS plugins and I have to say that they are great... noise is literally seek and destroyed without effecting the detail.... After playing with it for a couple of days I say that the plugins are definitely definitely worth getting. I reprocessed my M16 data from July this year and used topaz detail and denoise to try to get some more detail... I also applied the denoise filter to a JPEG image of the horsehead nebula from last year and, well I think the results speak for them selves. Clear skies, MG
  23. Hello Astronomers, During the week when I was imaging the Helix Nebula, I was exposing it when it was east of the meridian. So as it hit 15 degrees past the meridian and the meridian flip happened, there was no guide star in the OAG FOV so I had the option to pack up and continue imaging another day or try for another object and hope for a guide star. As the sculptor galaxy was close to the location I slewed to it (with favour western horizon selected in the CGEM settings) and to my joy when the sculptor galaxy was framed a 1/3rd of the frame to the edge there was a guide star in the OAG... WOO HOO ... and so a second object imaging continued. After getting 3 nights worth of ISO400 10 minute RGB subs, I found that after processing the image was very amber at best.. almost sepia... and no matter what I done to it it always looked too green or purple at certain parts... just didn't look right. When I eventually got a chance, I was going to image some pure blue subs to add to the image to correct for the amber look, but as luck would happen, forecast was for at least a week of clouds and rain... this week was no better BUT I did see a break in clouds the other day with a 3/4 FULL MOON!!!! I couldn't afford to let this opportunity go to waste so I imaged NGC253 through a Halpha filter to cut out the moon glow... remembering that when imaging through Halpha in the 40D there is a lot of data in red (of course) and about 30% as bright in the blue channel.... I thought that I could use that added to blue as well as add some halpha to red and perhaps reveal some nebulosity. I only managed 8 x 15 minute subs before clouds started coming and 4 out of those were usable... here is the result. Thanks for reading my babble.... MG
  24. Hi All, After a 8 month break due to moving I finally had a chance to do some simple Deep Space imaging. This image is of the Tarantula Nebula in the Large Megallenic Cloud (NCG2070). This is imaged using my modded Canon 40D at F10 2032mm using a Nexstar 8SE on a CGEM mount. The image consists of 12 x 5 min subs, 5 x 10 min subs and 10 x 1 min subs, all in RGB through a IR Cut filter. Currently I'm working on using the PEC feature on the CGEM, and after I've spent a few hours before trying to work out how it works... when it got to past midnight, I was ready to call it a night but decided to frame up on the Tarantula and give it a go... I thought it's not to shabby for a quickie, so I'm sharing it. As far as PEC goes, next time I get to do some astro, I should have NexRemote, PECTools and PHD to give me a average PEC training from 10 cycles... hopefully it'll improve the guiding accuracy and hence detail in my 2000mm imaging close up images. Thank for looking, Mariusz
  25. From the album: Deep Sky Imaging

    The Lagoon Nebula in natural color, approximately 2 hours of 2, 3 and 7.5 minute ISO1600 subs, taken with a Astro modded canon 40D through a 80mm f6.25 refractor.

    © Mariusz Goralski

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