Editing Sun H-Alpha

I reworked my picture of the Sun which I made yesterday - see this link
The bright and enormous prominence has now more contrast. 

Sun in H-Alpha

This afternoon I observed the Sun in H-alpha using my SolarMax III d70/400 f/5.3 DS BF15. The spotless sundisk showed a couple of big filaments and one huge prominence. 

The picture was taken with Nikon D7500, ISO400 and 1/320s. Editing using CS4.

NOSS Double in Milky Way

Only one bright perseid meteor and a couple of faint ones during an hour observation from UT20h15-21h30 on August 13th. As the sky was very clear I decided to take some pictures of the milky way using my wide field lens 10-24mm. It's clear that the sky is overloaded with satellites and satellite debris as all of my pictures have at least one satellite trace. The picture shows a double trace of the Naval Ocean Surveillance System. This "NOSS Double" is formed by NOSS 3-7(A) and NOSS 3-7(R).

Awards MAI75 SSTV Exp 65 6&7 august

During the MAI75 SSTV event on August 6&7, 2021 I was able to download some pictures from the ISS. The results were submitted and finally awarded. 

Links can be found on this blog for future submittals : Usefull Links

My picture on National TV

My picture, which I took this morning, of a double rainbow at the Demer river in Langdorp (Aarschot) was broadcasted on the National TV. During "Het Weer", the daily weather forecast from channel 1, my picture was presented by Bram Verbruggen.

MAI-75 SSTV Expedition 65 August 6&7

The Moscow Aviation Institute (MAI) did a couple of quick experiment sessions of SSTV during parts of August 6 and 7. The setup started at 10:50 UTC on August 6 and transmissions stopped around 19:10 UTC. The activation on August 7 started this morning about 09:50 UTC and ended 17:30 UTC. ISS setting : the usual PD120 format on the standard downlink frequency of 145.800 MHz.

I used the 70m high antenne with webSDR "Nürnberg skyscraper" and MMSSTV software.

I could download 7 pictures of which one was very poor quality. The quality of the others are good but none of the pictures are perfectly alligned. 

Lecture When Black Holes are Massive - Studium Generale

Professor Marta Volonteri, Institut d'Astrophysique de Paris, and Professor by special appointment in Black Hole Formation and Growth, University of Amsterdam will give a lecture on september 27. The title of the lecture, organized by Studium Generale Maastricht,  "When Black Holes are Massive".