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Found 11 results

  1. Slowly working through my summer crop of data - here's my latest: Please click through on the image for a higher res version. 13x 300s (3 at ISO1600, 9 at ISO800), darks, flats and bias, kit as per sig, DSLR at prime focus, Pixinsight. Conditions weren't ideal hence I only got 13 subs - there were a few scattered fluffy clouds around, though it was clear in between so obvious which subs were affected, and due to time of year and position of an annoying hillside it was setting fairly early for me. Still, as a target it's so bright I don't think it suffered much from lack of data - actually I noticed that after the first 3 subs came in, at ISO1600, that the red channel looked like it was clipping, so dropped it to ISO800 for the rest of the run. The Lagoon Nebula (M8, NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as a H II region. In the foreground is the open cluster NGC 6530. The Lagoon Nebula is estimated to be between 4,000-6,000 light years from the Earth and measures 110 by 50 light years. The nebula contains a number of Bok globules (dark, collapsing clouds of protostellar material), the most prominent of which have been catalogued as B88, B89 and B296. It also includes a funnel-like or tornado-like structure caused by a hot O-type star that emanates ultraviolet light, heating and ionizing gases on the surface of the nebula. The Lagoon Nebula also contains at its centre a structure known as the Hourglass Nebula (the densest part). In 2006 the first four Herbig–Haro objects were detected within the Hourglass. Just for a laugh, here's the same target I took last year. I guess I'm improving !
  2. Hello Astronomers, As I'm still slowly processing my remaining data captured earlier this year, now I'm sharing with you my image of the Lagoon Nebula exposed in narrowband Hubble palette. To me, the shape of M8 in narrowband resembles the map of Australia... This image was also in the group of captures in exposing the Prawn, Lagoon and Swan nebulae on the night of 5/6 July in OSC natural color. As with the Prawn and Swan nebulae, I decided to spend a few nights capturing SII, HAlpha and OIII data of M8 also, spending 1/3rd of the night imaging time on each of the objects, this way I ended up with data of all three at the end of the imaging sessions. This image was exposed through my Bosma 80mm refractor and the full spectrum modded Canon 40D on nights from 6th till 19th July 2019. The total exposure for all three channels of this image was 1002 minutes. Thanks for looking, Clear skies Mariusz
  3. Hello everyone, Last wednesday, I tried my first shot with an Astrotrac, which I borrowed from a friend before making the jump and buy one. And I must say that I'm quite amazed by its tracking capabilities, even without an autoguider. I know that the lens I used has only 85mm of focal length, but I only got a 5 pixels drift during 45 minutes of imaging : that's quite impressive Enough chitchat, here are the images : 5DmkII, Astrotrac, 85mm f/4.0, ISO 800, 14 x 60 seconds exposures, 15 darks, 50 bias, no flats, PixInsight for everything except the colors/saturation. From the Southern Cross to Eta Carina 5DmkII, Astrotrac, 85mm f/2.8, ISO 800, 9 x 60 seconds exposures, 15 darks, 50 bias, no flats, PixInsight for everything except the colors/saturation. Pipe, Trifid and Lagon nebulas, with some Barnard 5DmkII, Astrotrac, 85mm f/2.8, ISO 800, 30 x 60 seconds exposures, 15 darks, 50 bias, no flats, PixInsight for everything except the colors/saturation. Rho Ophiuchi A mosaic of the last two images Click on the pictures for a larger version I hope you liked them ! And if you're on the fence to buy an Astrotrac, just do it, it's an excellent piece of gear. Clear Skies
  4. 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

  5. Hello Astro people... I'm slowly I'm getting through my captured data from April, June & July as time permits. Now it was the turn to process my Lagoon data... This one is the Lagoon Nebula in natural color.... It's only about 2 hours worth of 2, 3 & 7.5 minute subs at ISO1600 using my Canon 40D. I usually imaged at ISO800, but with is one, and the other two on the same night, I decided to give ISO1600 a go to see whether there will be more noise when comparing to ISO800... The result is that there isn't, it looks every bit as clean as my ISO800 exposures, except with the added benefit of half of the time being spent on exposure... Clear Skies, MG
  6. 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

  7. hjw

    lagoon cropped

    From the album: HEQ5/SW 80ED

    M8 was my first ever DSO and I am thrilled with the difference a year of practice (and better equipment) can make. 53 subs @ ISO3200.
  8. Mesier 8 - the Lagoon Nebula - is an interstellar cloud around 4100 light years away in the constellation Sagittarius. This is HaLRGB data from Deep Sky West in New Mexico. Data were captured between April and June 2017. Luminance: 23x600s Red: 12x600s Green: 21x600s Blue: 15x600s Ha 5nm: 21x900s
  9. Ladies and Gents, may I present.. the Lagoon Nebula Lagoon Nebula (M8) by glowingturnip, on Flickr The Lagoon Nebula (M8, NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as a H II region. The Lagoon Nebula is estimated to be between 4,000-6,000 light years from the Earth and has an actual dimension of 110 by 50 light years. The nebula contains a number of Bok globules (dark, collapsing clouds of protostellar material). It also includes a funnel-like or tornado-like structure caused by a hot O-type star that emanates ultraviolet light, heating and ionizing gases on the surface of the nebula. The Lagoon Nebula also contains at its centre a structure known as the Hourglass Nebula (brightest part of this image) 12 or so 300s lights (it was setting fairly early for me, would have liked more) at ISO400 (bit of an experiment, think I'll go back to ISO800), flats, darks and bias, equipment as per sig, rubbish unmodded DSLR at prime focus, processed in Pixinsight. I had problems with my red channel with this image which was rather weak, which I put down to the UHC/LP filter I was using (can't remember the make). I didn't really need to use it tbh, I could see the LP dome above the nearest town and was shooting through the top of it, but could have done without really. Fortunately I had some old (out of focus ) data I was able to reinforce that channel with. Hope you enjoy !
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