Jump to content

sgl_imaging_challenge_banner_31.thumb.jpg.b7a41d6a0fa4e315f57ea3e240acf140.jpg

M81 & M82 - 31st Jan 2021


Recommended Posts

Last week saw some clear skies, even though the Moon was a bit on the bright side, and I managed to get in some imaging time with my new camera. I'm still very much new to the CMOS OSC camera so more time is needed to fine tune the settings.

This is the best of the weekend's images and is 68 x 180 second subs at 120 gain, using flats, dark flats and darks. Stacking in DSS with post-processing in PI.

  • Mount: SW EQ5 Pro
  • Scope: SW Evostar 100ED DS Pro with 0.85 reducer/flattener
  • Camera: ZWO ASI294 MC Pro Cooled to -10°C with only a UV/IR filter and imaging through APT
  • Guiding: SVbony 60mm Guide Scope with ZWO ASI120MM Mini using PHD2 with multi-star

I had to sort out some amp-glow issues by removing the BIAS frames from the stack but overall I'm pleased with the how much less noise is on this camera, compared to my modded EOS 1300D and the detail it managed to get in the two galaxies.

Hopefully I can move on to some nebula in the next week or so, if the forecasts are correct! :D

C&C's welcomed as I'm still a novice at this. ;)

M81-M82-31012021.png.bf475c007e189cde6cb20618ec66d889.png

Edited by Budgie1
Spelling
  • Like 22
Link to post
Share on other sites

Lovely image....I completely converted to Cmos.... It needs a different approach to CCD but the results are outstanding compared.

Edited by peter shah
spelling
  • Like 1
Link to post
Share on other sites

Getting that red filamentary detail on the Cigar Galaxy is no mean feat.

.... and without any Light Pollution filters as well.  I know FW is in the Highlands, but it still has quite a big town centre and throws out quite a bit of light.

  • Like 1
Link to post
Share on other sites
1 hour ago, Craney said:

Getting that red filamentary detail on the Cigar Galaxy is no mean feat.

.... and without any Light Pollution filters as well.  I know FW is in the Highlands, but it still has quite a big town centre and throws out quite a bit of light.

I'm lucky that I live far enough away from the town that the LP isn't an issue. My area is classed as Bortle 2, so I have more of an issue with the Moon then LP.

It does seem the the full Moon always coincides with clear skies though! 

  • Like 1
Link to post
Share on other sites
1 hour ago, Budgie1 said:

It does seem the the full Moon always coincides with clear skies though! 

So true.  There is possibly a PhD in there somewhere.

I'm not a massive Lunar fan as well.... so ho-hum....  but  something like the OptoLong- Extreme would work well with your 294MC on those Moon-lit  nights.

Edited by Craney
  • Like 1
Link to post
Share on other sites
1 hour ago, tooth_dr said:

Wow!  Where are you based?

South of Fort William, near the village of Onich. No street lights in Onich, so no issues with LP from there either. :D

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • 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.