AR2887 in high resolution

this is the main message area for anything solar :)
Post Reply
User avatar
GreatAttractor
Almost There...
Almost There...
Posts: 964
Joined: Sat Jun 01, 2013 1:04 pm
Location: Switzerland
Has thanked: 747 times
Been thanked: 753 times

AR2887 in high resolution

Post by GreatAttractor »

My results from Sunday (all stacked in AS!3 and processed with ImPPG).

90 mm refractor, Chameleon 3 (ICX445), poor seeing. Small surge, and something boiling on the limb (30-second intervals, 0:30 h total):

Image

Off-band; I like how everything seems more lively, will definitely try again (30-second intervals, 0:24 h total):

Image
ha90_2_c.jpg
ha90_2_c.jpg (135.68 KiB) Viewed 482 times
ha90_2_j.jpg
ha90_2_j.jpg (109.97 KiB) Viewed 482 times
GSO RC8; better results than before, but I don't know yet which of the following helped the most:
  • better seeing, for longer periods
  • more frames to stack thanks to a faster camera
  • replacing (as advised by Apollo) the Lunt's mini-ERF (colored glass) by Baader 2" Hα 35 nm filter; maybe I had been having thermal issues after all
"Nothing happening" animation of the AR (20-second intervals, 0:55 h total):

Image

Best frame:
sek4_118_out_1.jpg
sek4_118_out_1.jpg (80.11 KiB) Viewed 482 times
Another video, slightly more aggresive processing:
ha200_10_ag.jpg
ha200_10_ag.jpg (122.88 KiB) Viewed 482 times


My software:
Stackistry — an open-source cross-platform image stacker
ImPPG — stack post-processing and animation alignment
My images

SW Mak-Cass 127, ATM Hα scopes (90 mm, 200 mm), Lunt LS50THa, ATM SSM, ATM Newt 300/1500 mm, PGR Chameleon 3 mono (ICX445)
User avatar
Montana
Librarian
Librarian
Posts: 34560
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17667 times
Been thanked: 8787 times

Re: AR2887 in high resolution

Post by Montana »

Fascinating work Filip :bow :hamster: The images are superb and the animations are encaptivating :movie The off band one got me thinking, I was wondering why the material was flowing in and not out, then it dawned on me. As it is blue wing it has to be coming towards me and these arch filaments are facing the observer from that angle as it is near the edge of the disc, so you would be seeing the flow towards me. In fact, all the flow is towards me, it goes down at the top and at the bottom the flow is coming out at me. That guarantees blue wing :)

Alexandra


User avatar
MAURITS
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 8507
Joined: Tue Nov 27, 2018 4:37 pm
Location: Belgium
Has thanked: 2412 times
Been thanked: 4786 times
Contact:

Re: AR2887 in high resolution

Post by MAURITS »

Beautiful Filip.


Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be
User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 11171
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA
Has thanked: 9144 times
Been thanked: 6025 times

Re: AR2887 in high resolution

Post by ffellah »

Beautiful animations and high resolution work.

Franco


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: 16691 times

Re: AR2887 in high resolution

Post by DeepSolar64 »

Very nice animations and images, Filip! 👍🏻


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
marktownley
Librarian
Librarian
Posts: 42270
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20424 times
Been thanked: 10243 times
Contact:

Re: AR2887 in high resolution

Post by marktownley »

Good results Philip! The seeing isn't even coming close to supporting that 8", stick with the smaller aperture until seeing allows.


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
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: AR2887 in high resolution

Post by arnedanielsen »

Beautiful stills and animations, Philip!

Best regards,
Arne


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