My picture of Comet C/2017 K2 (Panstarrs) published in Magazine Heelal

My picture of Comet C/2017 K2(Panstarrs) (see blog article) is published in the August edition of magazine Heelal.

Follow up on Sunspot AR3062 - Eruption Confirmed

As a follow on the eruption of Sunspot AR3062 - see this link - I used data from SDO (Solar Dynamics Observatory - https://www.poollicht.be/nl/zonneactiviteit/zonnebeelden/sdo.html).

On the images from AIA 193, 211 and 304 the eruption is very easily to see (UT17h17). This confirms and verifies my picture. Cool!

Sunspot AR3062 Eruption

 

This evening Sunspot AR3062 near the south-western limb was observed during an eruption (UT17h17). Not sure what kind of eruption and will investigate further. 

Sun H-Alpha

The Sun in H-Alpha this evening. At the center of the disk sunspotgroup AR3068 is still growing and near the eastern limb the active region AR3070 can be observed with prominences. 

Picture taken using SharpCap 4, with flats and seeingmonitor. Stacking done by keeping 5% of the best frames.

Setting: SolarMaxIII 70/400 f/5.7 DS BF15 with ASI290MM

Software: SharpCap4, AS3!, IMPPG, CS4

Hercules Globular Cluster Messier M13

Globular Star Cluster, Messier M13, is located in constellation Hercules and about 25.000 ly away from Earth.

Setting : Nikon D7500, TAL200K f/8.5, ISO640 and exposure time of 34x30s 

Use of darks, bias, flats and darkflats

Software : APP, CS4 and DeNoise AI

Caution!

Art - Star Vega and Tri-Bahtinov

 

Looks like art but in reality it is the bright star and a Tri-Bahtinov Mask.