On August 12, two successive solar flares erupted from active region AR13395 within 92 minutes. The video begins at the end of the C8.8 eruption, which started at 09:04 UTC. At 2/3rds in the video, the second eruption occurs, which startet at 10:36 and lasted till 10:54.
High resolution granulation around sunspot group 13403
Last week I could participate in a telescope meeting in hungary. Although it was hot and humid, the air was quite stable during the day. So I could capture a timelapse of the beautiful sunspot region 13403 with impressive resolution of 0.158 arcseconds per pixel through my 10″ Newtonian telescope. The high magnification paid off, as I could for the first time capture the fascitating motion of the granulation.
Technical details:
Telescope: 10″ f/5 Newton + 2.5x Barlow lens = 3125mm effective focal length
Camera: QHY183M (2.4µm pixels)
Filters: Baader solar film + Baader solar continuum
Sequence: 149x 1000 frames, 30s interval
Recording time: 10:26-11:42 UTC
Sunspot 12804 plus prominences and filaments
After a brief break early February, the Sun is still showing activity. Here are the nice but small sun spot 12804 as well as 2 filaments and a detatched prominence.
Image data:
Date: 2021-02-26 13:30 – 14:00 UTC
Location: Graz, Austria
Telescope: 102mm f/7 APO with 4x Tele-Centric
Camera: QHY183C @ -10C
Filters: SolarSpectrum 0.5A @ 60.5C
Some activity on the sun (Prominence, Filament, Sun Spot)
After 2 weeks, the sun has some beautiful activity to observe. Apart from a quite small sun-spot, there is nice prominence activity as well as a filament.
Image data:
Date: 2021-02-20 12:30 – 14:10 UTC
Location: Graz, Austria
Telescope: 102mm f/7 APO with 4x Tele-Centric
Camera: QHY183C @ -30C
Filters: SolarSpectrum 0.5A @ 60.5C
Sunspots 12785, 12786, 12787 and 12788 plus prominences from 2020-11-30
Again a series of images of the currently active regions of the sun. All images taken in the mid-morning of 2020-11-30.
Unfortunately, these will be the last images for several days, as a persistent cloud system arrived that day…
Sunspots 12785, 12786, 12788 from 2020-11-29
The prolongued quiet phase of the transition from solar cycle 24 to 25 hasn’t have much to show off. But now, the sun has several sunspots as well as prominences to marvel on!
It is really fascinating, that the sun burst into activity within only a few days.
I was lucky to get a brief period of cloud free late morning to image the sunspots 12785 (the spot to the right), 12786 (the large whale-shaped spot to the right, including the tiny spots left to it) and 12788 (the group of tiny spots to the south-east of 12786) in a 2-tile mosaic.
On the limb, there is quite some activity too! See the 2 parts with prominences here:
Sunspot Region 12781 on 2020-11-08
Finally it seems, that the Sun is waking up after a long period of nearly spotless months!
This is a compiled image out of 2000 raw frames. Image is wavelet sharpened in Registax. Further sharpening, level adjustment and colorizing done in Photoshop.
