AR 3038 in WL + granulation time lapse

[GreatAttractor]

The seeing on Thursday was mediocre, but my 3-hour session yielded a few good stacks. All taken with Intes M715, Baader ND 3.8 solar film + Solar Continuum filter, Blackfly S (IMX 273), processed with AS!3 and ImPPG.

High-cadence granulation time lapse (my first; the old ones from 2012 used 1-4 minute intervals, here it's just 15 s, 9 minutes total):

(note: videos can be looped via right-click)

Finally, a fast-forward animation spanning the whole session (3:11 h total); note the twist of the lower sunspots and the dis/appearing pores:

 

 

 

[neil phillips]

Lovely detail. Class work

[david_taurus83]

Wow! I didn't know you could get so much detail with WL. And solar film at that!

[GreatAttractor]

Thanks!

 

1 hour ago, david_taurus83 said:

And solar film at that!

Well, of course. Baader film's thickness is uniform to 1/10 λ or so. As reported e.g. by users on CN, cheap glass filters do not compare well to that  (a 1/10 λ 180 mm glass would probably cost ~1k €).

[Rusted]

Stunning!

[Pete Presland]

fabulous set of images, stunning granulation