The picture was taken with Nikon D7500, ISO400 and 1/320s. Editing using CS4.
Pascal Hilkens Astro Home Page
Saturday, August 14, 2021
Sun in H-Alpha
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).
Thursday, August 12, 2021
Awards MAI75 SSTV Exp 65 6&7 august
Links can be found on this blog for future submittals : Usefull Links
Tuesday, August 10, 2021
My picture on National TV
Saturday, August 7, 2021
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.
Sunday, August 1, 2021
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".
Solar Astronomy Book
This week I received the new english book "Solar Astronomy" which is a translation of the popular "Astronomie Solaire". I was able to get a signed version of the book.
The webpage tells the following :
Solar Astronomy is a wonderful introduction and reference for anyone interested in our star the Sun and particularly anyone interested in participating in the adventure of understanding the Sun by observing it themselves.
We live at a particularly exciting time in the study of the Sun with major, new space-based and ground-based, long-term full-Sun and high-resolution observations returning spectacular images and measurements, advancing our knowledge of existing challenges and revealing new phenomena of this fascinating dynamic physical laboratory, exemplar of all of the stars in the universe, and source of essentially all of the energy that makes life possible, ever changing on timescales from seconds to decades.
This all-encompassing, modern, and authoritative collection addresses the latest developments in optical, radio, and eclipse observations of the Sun and should be of broad appeal to the solar physics pro–am community, and beyond, providing the reader with the understanding and tools to be an active participant in the fantastic progress being made in our enjoyment and exploration of our neighborhood star.
In presenting the background and the tools for moving forward in our understanding and appreciation of the Sun, this book also makes available to the world the accomplishments of modern “amateur” solar physicists.
My congratulations to Christian Viladrich and colleagues for this beautiful work sharing their passion for observing the Sun, up close and personal, and paving the way for others to join in the adventure.
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