Astronomy Picture of the Day
    


APOD: 2023 December 17 Geminids over Chinas Nianhu Lake
<< Yesterday 16.12.2023 Tomorrow >>
APOD: 2023 December 17  Geminids over Chinas Nianhu Lake
Credit & Copyright: Hongyang Luo
Explanation: Where are all of these meteors coming from? In terms of direction on the sky, the pointed answer is the constellation of Gemini. That is why the major meteor shower in December is known as the Geminids -- because shower meteors all appear to come from a radiant toward Gemini. Three dimensionally, however, sand-sized debris expelled from the unusual asteroid 3200 Phaethon follows a well-defined orbit about our Sun, and the part of the orbit that approaches Earth is superposed in front of the constellation of Gemini. Therefore, when Earth crosses this orbit, the radiant point of falling debris appears in Gemini. Featured here is a composite of many images taken a few days ago through dark skies from Nianhu Lake in China. Over 100 bright meteor streaks from the Geminids meteor shower are visible.

APOD Year in Review (2023): RJN's Night Sky Network Lecture

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




123
45678910
11121314151617
18192021222324
25262728293031
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: Geminids - meteor shower
Publications with words: Geminids - meteor shower
See also:
All publications on this topic >>