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July 7th - Ha

Posted: Tue Jul 10, 2018 6:54 pm
by MapleRidge
Hi everyone...

I had a brief amount of time on Saturday to grab some images, but the seeing was poor so I limited the session to a few full disk images and cut attempts to do any higher resolution work based on how things shaped up on the monitor when I set up on the CR150.

The images below are a composite disk and limb exposure, with the limb layer inverted to enhance the small, faint proms on the eastern limb. These were taken through the LS80T/B1200Ha/LS75FHa double stack system:
Full-Ha.jpg
Full-Ha.jpg (403.09 KiB) Viewed 1646 times
Full-Ha-B.jpg
Full-Ha-B.jpg (325.25 KiB) Viewed 1646 times
With the new suspected AR starting to round the limb I was hoping to get more images but seeing limited me to these...both through the CR-150/DSSII/B1800Ha modded scope and a 2x tele-extender. The first had the pressure tuner of the DSII set a 0PSI which acted like a red filter (WL), while the second was set at 17PSI to put it on band for Ha:
New-Red.jpg
New-Red.jpg (145.64 KiB) Viewed 1646 times
New-Ha.jpg
New-Ha.jpg (69.87 KiB) Viewed 1646 times
I also cut the session short as I found the etalon wasn't properly aligned and I had to dismantle the modded setup and re-build it...which seemed to fix the issue but used up my time so I closed up for the day.

Questions and comments are always welcome,
Brian

Re: July 7th - Ha

Posted: Tue Jul 10, 2018 10:57 pm
by ffellah
Hi a Brian: you have some nice images considering the difficult conditions

Franco

Re: July 7th - Ha

Posted: Wed Jul 11, 2018 4:43 am
by marktownley
Good shots! The new active region seems more of a decaying old one to me...

Re: July 7th - Ha

Posted: Thu Jul 12, 2018 8:10 am
by DJD
Brian,
I always like your full disks. Can I ask what was wrong with your etalon? How did it become misaligned and how did you correct it ?
Best wishes,
David

Re: July 7th - Ha

Posted: Thu Jul 12, 2018 11:38 am
by Montana
Yes, I agree, I think this big AR is very decayed and holds no sunspots. Just pretty in CaK and Halpha for the plage disturbances. Some lovely images Brian :bow
Alexandra

Re: July 7th - Ha

Posted: Fri Jul 13, 2018 12:49 am
by MapleRidge
Franco, Mark, David, and Alexandra...

Thanks to each of you for your comments and feedback, it is always appreciated :bow

David, I had removed the DSII etalon from my modded setup to test out a few things, but when I reassembled it I had not seated properly in the holder and since it wasn't square to the optical axis it wouldn't tune.

Brian

Re: July 7th - Ha

Posted: Fri Jul 13, 2018 7:00 am
by Derek Klepp
Cheers Brian.

Re: July 7th - Ha

Posted: Fri Jul 13, 2018 4:19 pm
by marios i.
Very nice!

Marios

Re: July 7th - Ha

Posted: Sat Jul 14, 2018 12:35 am
by eroel
Brian:
A very good session considering the seeing conditions.
Have a nice weekend,
Eric.

Re: July 7th - Ha

Posted: Sat Jul 14, 2018 1:26 am
by MapleRidge
Derek, Marios, and Eric...

Thanks for your comments!!!

Brian

Re: July 7th - Ha

Posted: Sat Jul 14, 2018 5:43 am
by Carbon60
Nice images, Brian. Now a few days on, the disturbed plage looks pretty impressive.

Hope you get your equipment back up to par shortly.

Stu.