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Showing content with the highest reputation since 01/10/20 in Images

  1. 7 points

    From the album: Mars

    Having messed about with one of my blurry images of Mars for most of the afternoon, I may have captured the clouds over Olympus Mons or otherwise I've managed to organize 'noise' into a clump.
  2. 6 points

    From the album: Mars

    Night of the 9th October 2020. A clear night but unfortunately the Jet stream conspired to make images wobble like jelly on a plate! A stack of 9mins of RAW video clips. 127mm Meade Apo Refractor with 3x Barlow and QHY5-11 colour planetary camera. The best of a poor set of clips.
  3. 4 points

    From the album: Mars

    Last night's 15% stack of 2500 RAW video clips. !27mm Meade Apo Refractor x3 Televue Barlow.
  4. 4 points

    From the album: The Moon

    Last night was surprisingly clear in between the increasingly wet and windy weather fronts. After taking some video clips of Mars I pointed my 127mm Refractor at the Moon. Look as I might I could not see any fresh water lakes in Clavius.
  5. 4 points
  6. 4 points
  7. 3 points
  8. 3 points

    From the album: Deep Sky III

    A reprocess of my M100 image which is also in this album.
  9. 3 points
  10. 3 points
  11. 3 points
  12. 3 points
  13. 2 points

    From the album: Deep Sky III

    LBN 438 is a dusty nebula located in the Lacerta constellation which is also known as the sand worm (from the Dune science fiction series) or the shark nebula. It doesn’t appear very often on SGL, probably because it is so faint ! It is illuminated by interstellar radiation known as Extended Red Emission (ERE). ERE is a relatively recent discovery (1975) and is a photo-luminescence process whereby hydrogenated amorphous carbon is illuminated by interstellar photons in the 500 to 1000nm spectral range. Although the nebula also contains ionized hydrogen, it only emits a relatively weak Ha signal, so I decided to only use broadband filters to acquire the target. The LRGB image shown below was captured with my Esprit 150 and represents just over 13 hours integration time. At the top of nebula is a reddish glow, which I presume is due to ERE. The nebula is surrounded by very bright blue stars which can detract from the relatively faint nebula, so these have been stretched much less than the rest of the image and then blended back into the main image. If you look closely at the background you will also be able to see various small background galaxies (eg middle left).
  14. 2 points
  15. 2 points
  16. 2 points
  17. 2 points
  18. 2 points
  19. 2 points
  20. 2 points
  21. 2 points
  22. 2 points

    From the album: Mars

    A stack from another AVI video taken on the 19th September 2020. 127mm Meade Apo refractor and x3 Televue Barlow, QHY5-11 colour Camera. 3min video best 500 frames. Taken on board Pete Presland's advice - muted colour and less sharpening. Also reverted to Autostakkert2 plus Registax6 wavelets.
  23. 2 points

    From the album: Saxon M20325

    Jupiter and the Great Red Spot with Oval BA, Io moon transit and the first Jupiter outbreak. 8 Stacked images from the 28th of April 2020. Captured in SharpCap 3.2, aligned and stacked in AutoStakkert 3, wavelets and resized larger in RegiStax 6, edited in PaintDotNet. Saxon 8" Maksutov Cassegrain, ZWO ASI224MC, SkyWatcher EQ6 Pro.
  24. 1 point

    From the album: Out and About

    Truth is my arty side overwhelmed my scientific bent and so I combined my conjunction images taken from a bedroom window with my image of Southwold Harbour Breakwater in a full on technicolor 'mash up'. Made for a more dramatic picture!
  25. 1 point

    From the album: Deep Sky III

    In the constellation Cepheus, at 1400 light years from Earth, lies vdB 152, a small blue reflection nebula located at the tip of the dark Bok nebula Barnard 175. Embedded in the dark nebula is the Herbig Haro object HH 450. The faint red streak to the right of the reflection nebula is a supernova remnant known as SNR G110 + 11.3 which appears to be approaching vdB 152. Some of my notes for those that might be interested: Reflection nebulas are created when a nearby star illuminates the gas of at a nebula at an insufficient energy level to ionize the gas but strong enough to create light scattering that makes the dust visible. Reflection nebulas mostly appear blue because particles in the nebula scatter blue light more efficiently than other wavelengths. Bok nebulas are isolated and relatively small dark nebulas containing dense dust and gas from which star formation can occur. Herbig Haro objects are bright patches of nebulosity that form when fast moving narrow jets of partially ionised of gas, ejected from a newly formed star, collide with nearby gas and dust at several hundred km/s. The LRGB image below represents 12 hours integration time and was taken with my Esprit 150.
  26. 1 point
  27. 1 point
  28. 1 point
    Taken with 12" f/4 OO Newt, *2.5 Barlow, ASI120C camera, best 1000 frames out of 5000, Autostakkert! sharpened image. No filters.
  29. 1 point
  30. 1 point

    From the album: Peggson's astrophotos

    I shot this yesterday from a Bortle 6 backyard. Edited in Pixinsight and Photoshop If someone here knows how to remove purple stars, please help me . I tried defringing but it didn't really work. Also the date is wrong should be 9.10.2020. lol

    © Peggson's photo

  31. 1 point
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  38. 1 point
  39. 1 point

    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

  40. 1 point

    From the album: Megrez 72

    M31 25 x 5mins Williams optics megrez 72 Cannon Eos 40d
  41. 1 point
  42. 1 point

    From the album: Observatory 17b

    The Crescent nebula ngc6888 In Ha and O3 bicolor Imaged on Aprit 31th, 1-3, 6-7 and 12-13 of September 2020 with ASI1600mmc at -20C and using 300 gain and 50 offset A total of 137 minutes of Ha subs + 117 minutes O3 subs makes this a 4h and 14m min integration. Hope You Like, Clear skies /Magnus_e
  43. 1 point
  44. 1 point

    From the album: Deep Sky III

    The dark nebula LDN982. The LRGB image represents 15 hours integration time.
  45. 1 point

    From the album: Deep Sky III

    M94 is approximately 17 million light years distant and contains both inner and outer rings. Star formation occurs in both rings but is mainly concentrated in the inner ring which is also known as a starburst ring, within this region, the rate of star formation is occurring so fast that it will exhaust the available interstellar gas supply well before the death of the galaxy. The extensive outer ring contains about 20% of the galaxies mass and consists of spiral arms when viewed in IR/UV, however, in visible light it appears as a halo. Exactly how the outer ring formed is subject to debate. Past theories include gravitation interaction with a nearby star system or accretion of a satellite galaxy, however, problems have been identified with each of these theories. It is also strange that in 2008 a study indicated that M94 also seems to have little or no dark matter, which is very odd since it is inconsistent with current galaxy formation models. So, all in all, a very mysterious object.
  46. 1 point
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  48. 1 point

    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

  49. 1 point
  50. 1 point
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