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Date taken: 22-23 March 2020. Camera: Astro-Modified Canon 600D. Telescope: SW Esprit 100 with Field Flattener and Baader U-HCS filter. Mount: AZ-AQ6 mount Image: 41 light subs (3 minutes each with 15 sec interval) with master dark, Flat and bias each made from 80 subs. Comments: My second attempt at the Iris, a target that I have always found difficult. I can now start to see some of the detail that others show so well in their images. I am very pleased with it!
Had a chance to image at a dark sky site for the first time (Møns Klint in Denmark).
Previous attempts were always ruined by equipment failure or fog. This time everything went to plan, and it was an excellent experience. This was also my first time properly using my standalone autoguider (Synguider 2), after getting the hang of its eccentricities in the backyard. Have to say that once you figure out all the important info that's not in the manual, it's s fantastic piece of kit. Not having a laptop out in the field made things much simpler.
Two main targets for the night. Horsehead nebula and Iris nebula.
(40 x 3min subs)
(40 x 3min subs)
(Skywatcher 200P newtonian, EQ5 goto mount, coma corrector, Canon 450D unmodded @ iso 800, Synguider standalone autoguider, processed with DSS and PI)
I was amazed at the difference a dark site made, and of course the guiding - but regretted not getting 6 hours of data on a single object when I had the chance - was tempted instead to go for multiple, resulting in shorter stacks. But overall, very happy with the experience, and I'll be heading to dark sites any time I get the chance.
Hi everyone - it's been a while!
This has been on my hard drive for almost 2 months and I finally got round to processing it...it was quite optimistic of me to try and image this from my Bortle 7-8 back garden, but I gave it a go! While the nebula itself is clear to see, all those gorgeous dust clouds surrounding it were extremely hard for me to capture from my location without a lot more integration time. I think I'll head to dark skies to capture this one next time, along with some more focal length!
LRGB shot with ASI1600MM Pro and WO Z73. 2.9 hours of integration time.
Full details here.
Thanks for looking!
The weekend that just passed we went to my girlfriend's parents. The skies in that rural area are pretty much as good as you can get. I don't have an SQM reader, but Clear Outside estimates 21.91.
I didn't take the EQ6R with me, I still consider it a big lump of iron, and the AZ-EQ5 should be on its way back this week as a Stellar mount. So I used the EQ5 which was left in the car for a while. While the tracking/guiding on the RA axis is quite good, the DEC control jumps a lot after multiple consecutive guiding commands, I blame the "enhanced" handset.
So with all the drawbacks, I tried to do align the mount as good as I could and I put the 72ED with the ASI1600 on it and a finder-guider.
Perhaps also focus could have been done a bit better, FWHM in the subs was 3.x.
Below is a quick process from last night, no deconvolution yet and a purple area at the bottom that I have to fix. 58x120s lum, 30x120s each RGB.
I thought I would share with you my first DSO taken with my new Orion 8" Ritchey Chretien F8 Telescope. The frame is made up of 12 x 4min shots, no light or dark frames, using my Sony A7Rii camera. The camera had the long exposure noise reduction switched on, which does help to reduce the total number of stars captured by the camera, as the Sony A7Rii does tend to overdo the number of stars captured. The telescope was mounted on my trusty skywatcher NEQ6 mount and the guiding was via PHD 'of course' via my skywatcher ED50 guide scope.
The shots were taken from my back garden in Stowmarket, Suffolk where I believe I am a Bortie 4 location, so the skies are mostly dark, with just a little light pollution from the main town, no filters used.
My normal telescope is a Skywatcher ED100 Pro Esprit F5.5, which is an incredibly sharp scope, but with a wide 550mm field of view, great for capturing the whole of Andromeda but a struggle with smaller images like the Iris Nebula. I will say the Orion RC scope did need to be collimated out of the box, which was a little disappointing, and it was not just a little out of collimation, it was a long way out, but with the use of a collimating tool, I soon had it dialled in.
First impressions of the Orion Ritchey Chretien 8" Telescope are fair, not super impressed, as it is nowhere near as sharp as my ED100 Esprit, but then this is to be expected based on price and telescope type, however, the pictures it has produced are pretty good, if you downscale the full 42MP from the Sony A7Rii camera, as can be seen in this picture.
I purchased this 8" Orion Ritchey Chretien OTA mainly for Planetary work, but as yet I have not had a chance to 'get onto' a planet, fingers crossed some clear nights will arrive soon, so I can try.
I welcome comments,