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Old 24-01-2021, 09:07 AM
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DiscoDuck (Paul)
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Thor's Helmet

Just testing out some new narrowband filters - Chroma 3nm OIII and 5nm Ha, replacing my ZWO 7nm ones.

An improvement over my previous attempts I think, and the Chroma filters don't seem to generate halos around brighter stars as easily as the ZWO ones did.

This was about 11 hours OIII and 9 hours Ha taken in suburban Adelaide on an RC8 and Mach1 mount with a ZWO 1600MM-C.

Astrobin version is here.

Edit: in response to Marcus' comment below, I remembered I had 6 hours (3x2) RGB on this from last year. I've used that for star colours and updated the Astrobin link above. A slight improvement maybe ... but the big change is that it pushes it over the 24 hours of data mark so I can now make a rubbish pun I was toying with that this is a Thor's Day.
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Last edited by DiscoDuck; 25-01-2021 at 04:36 PM.
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  #2  
Old 24-01-2021, 09:36 AM
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Andy01 (Andy)
My God it's full of stars

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Looks great, dunno how you managed to dial in the RC8 so well, but it's an awesome result you have there!
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Old 24-01-2021, 10:29 AM
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marc4darkskies (Marcus)
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Very nicely done Paul!

Just need to blend in a few hours of RGB and you'd be golden!
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Old 24-01-2021, 11:38 AM
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Great pic Paul!

I agree with Andy, the collimation of your RC is great. I just got a Tak collimating scope for my GSO RC6 ... had some progress, but need more time.

Q: I use Baader filters... plan to upgrade. Are you happy with Chroma? Compare to Astrodon? Where did you get it from?


Cheers,
Mik
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Old 24-01-2021, 12:54 PM
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DiscoDuck (Paul)
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Quote:
Originally Posted by Andy01 View Post
Looks great, dunno how you managed to dial in the RC8 so well, but it's an awesome result you have there!
Thanks Andy. The RC8 holds its collimation surprisingly well. I think it's 2-3 years since I last collimated, and it's been on numerous trips to dark sky sites in that time.

Quote:
Originally Posted by marc4darkskies View Post
Very nicely done Paul!

Just need to blend in a few hours of RGB and you'd be golden!
Thanks Marcus. I might give that a go. Last time I tried that, the RGB stars were not much better than the HOO ones. But for completeness I should try!

Quote:
Originally Posted by miki63au View Post
Great pic Paul!

I agree with Andy, the collimation of your RC is great. I just got a Tak collimating scope for my GSO RC6 ... had some progress, but need more time.

Q: I use Baader filters... plan to upgrade. Are you happy with Chroma? Compare to Astrodon? Where did you get it from?
Good luck with your collimation Mik. I used a Glatter laser to do mine. There is no centre spot on the secondary as mine is older - that doesn't help! The "hall of mirrors" trick to align the primary and secondary is useful too.

Re the filters, I'd heard some grumblings about Astrodons since they got taken over. But only good things re Chroma. They seem fine. Not too sure if they'll be a huge upgrade from Baader, but certainly they are from ZWO. I just got them from OPT. I thought I had some halo issue due to them at first (see this thread) but it turned out to be my camera I think.
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Old 24-01-2021, 01:32 PM
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multiweb (Marc)
ze frogginator

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Pretty deep shot with nice colors and details in the core. Beautiful flat field too.
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Old 24-01-2021, 02:53 PM
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DiscoDuck (Paul)
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Thanks Marc.
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Old 24-01-2021, 05:50 PM
Placidus (Mike and Trish)
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That's astonishing, both in terms of depth and clarity.
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Old 24-01-2021, 06:25 PM
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Thanks Mike and Trish
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Old 24-01-2021, 09:08 PM
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Woohoo it's clear

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A really good Thor that Paul, its such a cool looking object, no wonder we all like to have a crack at him Enjoyed having a good look, plenty of cool details, well done

Mike
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Old 25-01-2021, 07:17 AM
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Thanks Mike.
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Old 25-01-2021, 08:54 AM
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Excellent
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Old 25-01-2021, 04:00 PM
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Excellent
Thanks
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Old 25-01-2021, 08:44 PM
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Nice work, DD. Looks like your duck science has paid off there! Lovely and smooth, nice deatil in the centre bubble area, good colours.
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Old 25-01-2021, 08:55 PM
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Beautiful detail.... I rather like Chroma filters
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Old 26-01-2021, 07:54 AM
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DiscoDuck (Paul)
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Quote:
Originally Posted by petershah View Post
Beautiful detail.... I rather like Chroma filters
Thanks. Yes, I'm pleased with the Chroma filters....though my wallet is a bit light

Quote:
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Nice work, DD. Looks like your duck science has paid off there! Lovely and smooth, nice deatil in the centre bubble area, good colours.
Thanks Bart. Good to know that duck science works and I'm not just a quack
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