Jump to content

sgl_imaging_challenge_2021_2.thumb.jpg.72789c04780d7659f5b63ea05534a956.jpg

ShineOn

Members
  • Content Count

    79
  • Joined

  • Last visited

  • Days Won

    1

ShineOn last won the day on November 19 2013

ShineOn had the most liked content!

Community Reputation

268 Excellent

1 Follower

About ShineOn

  • Rank
    Nebula

Profile Information

  • Gender
    Male
  • Location
    Bakewell, Derbyshire Peak District

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. The Crescent and Soap Bubble nebulae in Cygnus. Many hours of imaging time were spent on this object over the course of multiple nights in May, using my dual imaging rig. Narrowband filters were used to create an HOO base image (minus the stars) and RGB data was used for the stars. The Soap Bubble nebula (bottom right) is a planetary nebula and is so faint it was only discovered in 2007. Image details: Takahashi FSQ85 / Atik 460ex Ha - 35 x 20 mins Oiii - 35 x 20 mins Skywatcher MN190 / ZWO ASI 2600MC Pro RGB - 299 x 5 mins Total image time: 48 hours 15 mins Guid
  2. The bright central core of the Ring Nebula, M57, is a famous planetary nebula easily observed in a small telescope. It’s the remnants of a dying star, shedding material into space. Recently though I set myself the challenge of capturing the much less often imaged outer halos of M57. With a lot of deep narrowband exposure time over 4 different nights and almost as much processing afterwards, I was very happy to have achieved this. The inner halo (discovered in 1935) surrounds the familiar bright core and is around 5 times fainter than it. The outer halo is some 5000 times fainter than
  3. The North America Nebula and Pelican Nebula, in Cygnus. For the North America region I used my Ha data from 2016 taken at higher resolution, aligned it with Registar and combined as a luminance layer. Imaged over 2 nights last week: 424 x 60s at ISO 1600 unguided Total image time – 7 hours 4mins Modified Sony A7s William Optics RedCat 51 Optolong l-Pro clip in filter iOptron Sky Guider Pro Stacked in Sequator, Processed in PS CS5
  4. The Veil Nebula in Cygnus is one of the best known supernova remnants in the sky, the star that caused it exploding around 7000 years ago. It’s a huge object (about 6 full Moon widths) and although I’ve imaged separate parts of it before, I haven’t had the gear to capture it all in a single frame. But this is possible now with the 250mm focal length Redcat and the full frame Sony. Imaged over 2 nights: 142 x 120s at ISO 1600 unguided 34 x 240s at ISO 1600 guided with ASI 224MC / phd2 Total image time – 7 hours Modified Sony A7s William Optics RedCat 51 STC Duo narrowband cl
  5. The obvious benefit of running a dual rig setup is that you can image the same target with two different telescope / camera combinations simultaneously. The data for these widefield views of M51 was captured at the same time as the close up image I posted a couple of days ago. I could have combined the data but I knew I had enough from each setup to simply produce a 2nd, very different image. The galaxy doesn’t have quite the resolution but I prefer the colours in this version and the way M51 appears to float in its surroundings. The APS-C sized chip of the ZWO camera coupled with th
  6. Thanks Alan - the best thing I did for my 190 was replace the stock focuser with a Moonlite - but the connection is still a standard nosepiece into the tube connected to my Atik EFW
  7. Thanks Geof - yes I've seen it on your superb M51 too, much clearer in fact. I googled it's catchy name and it threw up a couple of amateur sites having the distance as stated or similar. The NED has it at 11.036 Gly http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=SDSS+J133004.71%2B472301.0&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES
  8. This is M51, the Whirlpool Galaxy….THE grand design spiral galaxy! Or more accurately it’s M51 and NGC 5195, as both galaxies are interacting with each other some 25 million light years distant, connected by a dusty tidal bridge. Captured over several nights last week, I framed the image to include IC 4263, the galaxy in the top right corner. Image details: Luminance – 50 x 5 mins and 5 x 10 mins Red – 18 x 5 mins Green – 27 x 5 mins Blue – 26 x 5 mins Ha – 17 x 10 mins With Skywatcher MN190 / Atik 460ex Total image time: 13h 45mins Guided with ZWO ASI 224 MC / phd2
  9. Thanks everyone. I have to set up / tear down after each dry/clear spell and always need to collimate at the outset. But using a hotech laser collimator is a pretty quick and straightforward process.
  10. This is M94, the Croc’s Eye or Cat’s Eye Galaxy in the constellation of Canes Venatici, around 15 million light years away. It was an interesting one to process with it's bright central core but much fainter outer halo. Layer mask techniques were used to selectively process and expose this halo whilst retaining detail in the galaxy core and dust lanes. Quite a few faint fuzzies in the background too. Image details: Luminance – 37 x 5 mins with Skywatcher MN190 / Atik 460ex RGB – 7 x 5 mins per channel with Skywatcher MN190 / Atik 460ex Total image time: 4h 50mins Guided with Z
  11. I'd like a "smallish" refractor like that! , Great image.
  12. One swallow may not make a summer but the appearance of bright nebulae in the Cygnus region may well! This is a widefield view of some of the jewels to be found in that region of the sky, shot from my back garden in the early hours of 16th April using my ‘grab and go’ set up. In the photo you can see the North American Nebula on the left, with the Pelican nebula immediately to its right. Just right of centre is the Butterfly Nebula and further right is the Crescent Nebula, looking tiny at this focal length. Plus a lot of stars, as we look towards the densely packed galactic core.
  13. Galaxy season continues apace… This is M104, the Sombrero Galaxy, some 30 million light year away in the constellation of VIrgo. It’s always fairly low from UK skies but I had 2 nights this week to go at it with the dual rig. Image details: Luminance – 43 x 5 mins with Skywatcher MN190 / Atik 460ex RGB – 7 x 5 mins per channel with Skywatcher MN190 / Atik 460ex RGB – 59 x 5 mins with Takahashi FSQ 85 / ZWO ASI 2600MC Pro Total image time: 10h 15mins Guided with ZWO ASI 224 MC / phd2 Data captured with Sequence Generator Pro Stacked with DSS Scaled and aligned with Regista
  14. Thank you Ragnar. Yes, hoping to add some RGB this week
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.