Astronomy Picture of the Day
    


APOD: 2023 February 28 Á Crescent Moon Beyond Greek Temple
<< Yesterday 28.02.2023 Tomorrow >>
APOD: 2023 February 28 Á Crescent Moon Beyond Greek Temple
Credit & Copyright: Elias Chasiotis
Explanation: Why is a thin crescent moon never seen far from a horizon? Because the only geometry that gives a thin crescent lunar phase occurs when the Moon appears close to the Sun in the sky. The crescent is not caused by the shadow of the Earth, but by seeing only a small part of the Moon directly illuminated by the Sun. Moreover, the thickest part of the crescent always occurs in the direction of the Sun. In the evening, a thin crescent Moon will set shortly after the Sun and not be seen for the rest of the night. Alternatively, in the morning, a crescent Moon will rise shortly before the Sun after not being seen for most of the night. Pictured two weeks ago, a crescent moon was captured near the horizon, just before sunrise, far behind remnants of the ancient Temple of Poseidon in Greece.

January
February
March
April
May
June
July
August
September
October
November
December
 < February 2023  >
Mo Tu We Th Fr Sa Su


12345
6789101112
13141516171819
20212223242526
2728




Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Moon
Publications with words: Moon
See also:
All publications on this topic >>