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Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 11:14 am
by turfpit
2020-03-27, 10% waxing moon. High res image here
https://www.astrobin.com/zz9jmu/?nc=user.
Celestron AVX mount, Celestron C8, Teleskop f6.3 reducer, Wratten #21 (orange) filter, Altair 183M camera.
SharpCap 3.2, SER, MONO8, gain=400, exposure 14ms, 1000 frames.
Autostakkert!3 best 10% of 1000, GIMP 2.10 for processing (sharpen-unsharp mask, shadows-highlights, contrast).
- Endymion-Mercurious-Messala.png (234.75 KiB) Viewed 2614 times
These are the names of craters in that region. Data from Virtual Moon Atlas
https://ap-i.net/avl/en/download
- named-craters.png (330.1 KiB) Viewed 2614 times
Dave
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 2:49 pm
by oopfan
You da Moon Man, Dave.
Great work!
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 5:51 pm
by umasscrew39
Just awesome, Dave!!!!
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 6:45 pm
by turfpit
Cheers Brian. The #21 orange filter is rumoured to "improve clarity of formations at the lunar terminator". Atmosphere was 'boiling' when I captured this. I have a couple more filters which are supposed to improve lunar features. I will carry out a systematic evaluation as weather permits. What I did discover is that a 10% moon is quite tricky to image - the bright rim and dark terminator are very close together.
Thanks Bruce. Haven't you got a C11? Perhaps you could have a go at lunar with it. Should be quite interesting. The moon is quite challenging.
Dave
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 10:13 pm
by umasscrew39
Hey Dave
I usually just look at the moon visually with my 122mm refractor but would be interesting to give it a go. Do you have a workflow you can share? I have an ASI1600MM that might work well on the C11. I have Autostakkert3! but have never used it. I downloaded it to use with my Daystar Quark which I also haven't tried yet.
Bruce
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 10:41 pm
by turfpit
Bruce
Have a look at
viewtopic.php?f=35&t=1450. I know the author, he's a great guy.
It is all in the histogram but a different shape to deep sky. There are 2 scenarios - disk surrounded by black (or partial black) & full surface.
https://docs.sharpcap.co.uk/3.2/#Using% ... %20Quality
The 1600 is USB3 I suppose. Evaluate your highest frame rate for different capture areas RAW8 (or whatever it is called in that camera).
For lunar (& planetary) fps is king as you try to beat the seeing.
I will have a look round at my other posts, I think I have some workflow detailed. If not I will write something.
I learned lunar imaging off this guy
http://www.damianpeach.com/lunarindex.htm. 2 x 6 hour workshops, 1 year apart. Same workshop repeated - I had some good questions second time around. The images I am producing now are the result of over 2 years of grind.
Dave
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Mon Mar 30, 2020 10:42 pm
by mAnKiNd
Thanks for the workflow Dave and Bruce, will get into it myself
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Tue Mar 31, 2020 3:39 am
by umasscrew39
Thanks for the detailed info, Dave. Not sure about the great guy bit,
, but I will take your word on it. It is obvious you have spent a lot of time and effort in nailing this down. It looks like a whole new hobby vs. DSO imaging.
Re: Endymion, Mercurius, Messala: #21 orange filter
Posted: Tue Mar 31, 2020 2:07 pm
by turfpit