Sun in Ha and CaK 22nd Feb 2021

this is the main message area for anything solar :)
Post Reply
User avatar
Carbon60
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 14204
Joined: Wed Mar 07, 2012 12:33 pm
Location: Lancashire, UK
Has thanked: 8415 times
Been thanked: 8161 times

Sun in Ha and CaK 22nd Feb 2021

Post by Carbon60 »

After a wet, cloudy, morning the afternoon sky opened up to become beautifully blue and almost cloudless.

Here are some images captured in Ha and CaK using, respectively, my DS Lunt 60 and Tecnosky 125 with a B1800 Lunt CaK filter (no additional filters were used this time around).

Image20210222_Ha_FD2_Mono by Stuart Green, on Flickr

Image20210222_Ha_FD2_colour by Stuart Green, on Flickr

Image20210222_CaK_FD_Mono by Stuart Green, on Flickr

Image20210222_CaK_FD_colour by Stuart Green, on Flic

The full disk images show a three nice little 'hot spots' of activity, but more impressive is the large prom towards the south west. Here it is in close up, captured on my 150mm/Lunt 35 mod.

Image20210222_Ha_Prom by Stuart Green, on Flickr

There are a couple of fainter proms in the south east, also captured using the same scope.

Image20210222_Ha_Prom2 by Stuart Green, on Flickr

I was hoping to make an animation of the larger prom, but although the sky was perfect, I was starting to hit the various shadows cast by obstacles around my plot, namely trees and my neighbour's roof apex. Maybe next time.

Thanks for looking.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
User avatar
marktownley
Librarian
Librarian
Posts: 42269
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20424 times
Been thanked: 10242 times
Contact:

Re: Sun in Ha and CaK 22nd Feb 2021

Post by marktownley »

A lovely set of images Stu! The seeing stood up well with the big Ha scope.


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
User avatar
dhkaiser
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1702
Joined: Sat Dec 14, 2019 2:57 pm
Location: Indiana, USA
Has thanked: 1407 times
Been thanked: 899 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by dhkaiser »

Very sharp images, love the proms!


Dan
South central Indiana
USA
User avatar
Stardust5858
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1500
Joined: Tue Oct 29, 2019 11:44 am
Has thanked: 803 times
Been thanked: 1182 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by Stardust5858 »

Lovely captures Stu, I loved the structure of the South Western prom. I too managed to image it, you processed it very nicely. 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.
EGRAY_OBSERVATORY
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 6871
Joined: Mon May 18, 2020 4:45 pm
Location: Essex, S.E.England
Been thanked: 4900 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by EGRAY_OBSERVATORY »

Excellent set of images Stu and the proms are fab.

Thanks for sharing
Terry


User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 11168
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA
Has thanked: 9143 times
Been thanked: 6024 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by ffellah »

Super shots, Stu ! Those prom images are cracking...

Franco


User avatar
MapleRidge
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 10199
Joined: Fri Jan 13, 2012 11:58 pm
Location: Cambray, ON Canada
Has thanked: 64 times
Been thanked: 4340 times
Contact:

Re: Sun in Ha and CaK 22nd Feb 2021

Post by MapleRidge »

Superb series of images Stu :bow

That SW prom is gorgeous!!!

Brian


Brian Colville

Maple Ridge Observatory
Cambray, ON Canada

Photos: https://www.flickr.com/photos/185395281@N08/albums

10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM

2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
User avatar
DeepSolar64
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 18823
Joined: Thu Sep 05, 2019 12:19 am
Location: Lowndesville S.C.
Has thanked: 17572 times
Been thanked: 16689 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by DeepSolar64 »

Very nice work Stu! The prom closeups are incredible!!


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

Image Visual Observer
" Way more fun to see it! "
User avatar
Carbon60
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 14204
Joined: Wed Mar 07, 2012 12:33 pm
Location: Lancashire, UK
Has thanked: 8415 times
Been thanked: 8161 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by Carbon60 »

Many thanks, everyone. I really appreciate your comments.

I've re-processed the Ha FD with inverted proms, increasing the disk contrast.

Image20210222_Ha_FD2_Mono_Inverted Proms by Stuart Green, on Flickr


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
User avatar
Montana
Librarian
Librarian
Posts: 34558
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17648 times
Been thanked: 8787 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by Montana »

Wow!! the last couple of high res proms shots are breathtaking, the detail is superb and all the little spicule points around the limb are delightful. The seeing must have been pretty good :hamster: :bow

Alexandra


User avatar
MapleRidge
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 10199
Joined: Fri Jan 13, 2012 11:58 pm
Location: Cambray, ON Canada
Has thanked: 64 times
Been thanked: 4340 times
Contact:

Re: Sun in Ha and CaK 22nd Feb 2021

Post by MapleRidge »

The re-worked FD image is awesome!!!

Brian


Brian Colville

Maple Ridge Observatory
Cambray, ON Canada

Photos: https://www.flickr.com/photos/185395281@N08/albums

10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM

2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
User avatar
Carbon60
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 14204
Joined: Wed Mar 07, 2012 12:33 pm
Location: Lancashire, UK
Has thanked: 8415 times
Been thanked: 8161 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by Carbon60 »

Many thanks, everyone.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
User avatar
arnedanielsen
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 7285
Joined: Fri Apr 18, 2014 10:42 pm
Location: Vestby, Norway
Has thanked: 6181 times
Been thanked: 7142 times

Re: Sun in Ha and CaK 22nd Feb 2021

Post by arnedanielsen »

Wonderful images, Stu! I love how smooth the transition is from the disc the prominence and how sharp the spicules are!

Best regards,
Arne


Best regards,
Arne
--
AstroBin: https://www.astrobin.com/users/arnedani/
Post Reply