Maps for GLOBE at Night at Latitude 40 , February 23, 21 H Local Time

< 0.50 mag < 1.50 mag < 2.50 mag < 3.50 mag < 4.50 mag < 5.50 mag < 6.50 mag < 7.50 mag Maps for GLOBE at Night at latitude 40◦, February 23, 21 h local time (deep night), assuming rather transparent air. Orion’s belt is 34◦ to the right from the south, at 43◦ height. The brightest fixed star, Sirius, is at left. Jan Hollan, Ecological Institute Veronica and http://www.astro.cz/darksky < 0.50 mag < 1.50 mag < 2.50 mag < 3.50 mag < 4.50 mag < 5.50 mag < 6.50 mag < 7.50 mag Maps for GLOBE at Night at latitude 40◦, March 2, 21 h local time (deep night), assuming rather transparent air. Orion’s belt is 42◦ to the right from the south, at 40◦ height. The brightest fixed star, Sirius, is at left. Jan Hollan, Ecological Institute Veronica and http://www.astro.cz/darksky Betelgeuse Rigel Pollux Procyon Sirius Sirius Arcturus Saturn < 0.50 mag < 1.50 mag S S Betelgeuse Big Dipper Big Big Dipper Big Betelgeuse Rigel Rigel Pollux Pollux Procyon Procyon Sirius Sirius Arcturus Regulus Arcturus Regulus Denebola Denebola Saturn Saturn < 2.50 mag < 3.50 mag S S Procyon Procyon Regulus Regulus Denebola Denebola < 4.50 mag < 5.50 mag Procyon Procyon Regulus Regulus Denebola Denebola < 6.50 mag < 7.50 mag Maps for GLOBE at Night at latitude 40◦, March 23, 21 h local time (Sun at -31◦). Lines from N(E,S,W) to zenith shown (crosses each 10◦). Regulus (α Leonis) is 32◦ to the left from S, at 58◦ height. Detailed maps vertical size 50◦, the first four maps 100◦. Jan Hollan, Ecol. Inst. Veronica and http://www.astro.cz/darksky Betelgeuse Pollux Arcturus Procyon Sirius Sirius Saturn < 0.50 mag < 1.50 mag Big Dipper Big Big Dipper Big Betelgeuse Betelgeuse Pollux Pollux Procyon Arcturus Procyon Arcturus Sirius Sirius Denebola Regulus Denebola Regulus Saturn Saturn < 2.50 mag < 3.50 mag Regulus Regulus Denebola Denebola < 4.50 mag < 5.50 mag Regulus Regulus Denebola Denebola < 6.50 mag < 7.50 mag Maps for GLOBE at Night at latitude 40◦, March 30, 21 h local time (Sun at -29◦). Lines from N(E,S,W) to zenith shown (crosses each 10◦). Regulus (α Leonis) is 19◦ to the left from S, at 61◦ height. Detailed maps vertical size 50◦, the first four maps 100◦. Jan Hollan, Ecol. Inst. Veronica and http://www.astro.cz/darksky Pollux Arcturus Arcturus Betelgeuse Procyon Saturn Sirius Sirius < 0.50 mag < 1.50 mag Big Dipper Big Big Dipper Big Hyades Hyades T CrB T Pollux Pollux Betelgeuse Betelgeuse Arcturus Arcturus Denebola Procyon Denebola Procyon Saturn Regulus Saturn Regulus Sirius Sirius < 2.50 mag < 3.50 mag Pollux Pollux Denebola Denebola Regulus Regulus < 4.50 mag < 5.50 mag Pollux Pollux Denebola Denebola Regulus Regulus < 6.50 mag < 7.50 mag Maps for GLOBE at Night at latitude 40◦, April 6, 21 h local time (Sun at -27◦). Lines from N(E,S,W) to zenith shown (crosses each 10◦). Regulus (α Leonis) is 5◦ to the left from S, at 62◦ height. Detailed maps vertical size 50◦, the first four maps 100◦. Jan Hollan, Ecol. Inst. Veronica and http://www.astro.cz/darksky.

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