Winter 2020/2021

"Zvaigžņotā Debess" The Starry Sky Winter 2020/21 (250) CONTENTS

ACTUALITIES
The news briefly. Ilgonis Vilks, Anna Gintere, Raitis Misa, Kalvis Salmiņš, Artūrs Vrubļevskis. Page 2.
Latvian offer for Venus research. Mārtiņš Gills. Page 6.
A surprise in the atmosphere of Venus. Ilgonis Vilks, Jānis Liepiņš. Page 12.

SOLAR SYSTEM
Solar System Exploration News. Anna Gintere. Page 19.

ISSUE No. 250
Starry Sky in 250 issues. Ilgonis Vilks. Page 24.
Test. Go through the Starry Sky! Mārtiņš Gills. Page 32.

SCIENTIFIC ACHIEVEMENTS
Bioreactor with the space in mind. Raitis Misa. Page 34.

OLYMPIC CHALLENGE
Proof of inequalities by removing the full square. Prepared by Maruta Avotiņa. Page 38.

ASTROSITE
The world of watches in Klaipeda. Mārtiņš Gills. Page 39.

SPACEFLIGHT
The “rooms” of the International Space Station. Māris Gertāns. Page 40.

AMATEUR ASTRONOMY
Photographing the details of Sun surface. Ilgonis Vilks. Page 46.

MOBILE APP
Solar compass. Mārtiņš Gills. Page 47.

PHOTO STORY
Pegasus, Andromeda and a meteor. Juris Seņņnikovs. Page 48.

INTERESTING
Astronomy in the medals of sculptor Jānis Strupulis. Vineta Skalberga. Page 50.

LOOK BACK
Boötes without bulls. Vents Zvaigzne. Page 56.

OVERVIEW OF THE SKY
Celestial bodies in the winter of 2020/21. Juris Kauliņš. Page 60.