Hi all!
Thursday mornings weather forecast was clear skies after a couple of days of rain so I was keen to make the most of it, we're back in an unstable airstream off the Atlantic again, and I know when such clear starts to the day happen the cloud will rapidly bubble up at a certain point when the atmosphere reaches that instability tip over. Sure enough that is what happened
I started off in CaK with the 120mm (optimistically!), but that was going nowhere with the seeing, going down to 100mm made no difference as did 80mm, so settled on 60mm.
First off the full disk 60mm f16 with the ICX814 chipped camera.
CaK-FD by Mark Townley, on Flickr
Closeup views were taken with the 127/1200 stopped down to 60mm to give me f20, with the benefit of minimal glass keeping exposure short as possible. The ZWO290mm camera was used to get near ideal sampling. Sadly all the activity of just over a week ago has died right back, and CaK wise all we have now is plage.
NE-Plage-CaK-60mmf20-290mm by Mark Townley, on Flickr
ar12849-CaK-60mm-f20-290mm by Mark Townley, on Flickr
ar12846-CaK-60mm-f20-290mm by Mark Townley, on Flickr
My next plan was Ha, however that instability tipping moment occurred, and in about 10 minutes went from clear to cloudy, as a result I managed a quick full disk, but nothing else. Tuning could have been better, it's an uneven disk, but better than the cloud and rain we have this friday morning.
Ha-FD-DS by Mark Townley, on Flickr
No chance of anything today, Storm Evert is making it a washout. Fingers crossed for something better over the weekend, but think it will just be brief gaps... Hope you like these.
Mark
Solar Overview 29th July
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Solar Overview 29th July
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Re: Solar Overview 29th July
Beautiful results with scopes stopped down, Mark. Like you said, not much going on at the present time.
Franco
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Re: Solar Overview 29th July
Excellent captures Mark and likewise the turbulent atmosphere yesterday, made it difficult, but yours are very well done.
The Ha filament/FD is my favourite as shows those so well.
Thanks for sharing
Terry
The Ha filament/FD is my favourite as shows those so well.
Thanks for sharing
Terry
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Re: Solar Overview 29th July
Wonderful shots Mark, great contrast on all of them.
Warren
Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
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Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
https://www.astrobin.com/users/rigel123/
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Re: Solar Overview 29th July
Thanks everyone! Appreciate your kind words.
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Re: Solar Overview 29th July
Well done for getting any kind of shots this week a couple of the CaK are a bit dark but then again this work PC has practically had it so it could be the screen
Alexandra
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Re: Solar Overview 29th July
Thanks Alexandra, yeah, those 2 CaK shots are dark I agree, it's me using 'stretch' in ImPPG.
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Re: Solar Overview 29th July
Brilliant session Mark, challenging sky to say the least. I like the CaK especially the close up. Think we're in a quiet spell for a little while. Thanks for sharing.
10ft x 6ft Solar RoR with Warm Room
Lunt 60mm Double Stack HA
80ed WL+ Lunt Hershal Wedge + Badder K-Line filter.
100mm AR + Lunt b1800 Ca-K module.
Neq6 Eq Mount.
2.7m Pulsar Dome.
11in Celestron SCT + White Light Filter.
70mm AR Stellavue.
12inch OO Newtonian.
Eq8 r Pro Mount.
Lunt 60mm Double Stack HA
80ed WL+ Lunt Hershal Wedge + Badder K-Line filter.
100mm AR + Lunt b1800 Ca-K module.
Neq6 Eq Mount.
2.7m Pulsar Dome.
11in Celestron SCT + White Light Filter.
70mm AR Stellavue.
12inch OO Newtonian.
Eq8 r Pro Mount.