Astronomy Picture of the Day
    


Comet Garradd Passes Ten Thousand Stars
<< Yesterday 3.09.2011 Tomorrow >>
Comet Garradd Passes Ten Thousand Stars
Credit & Copyright: Richard Tresch Fienberg (AAS)
Explanation: Comet Garradd continues to brighten as it drifts across the northern sky. Last week the comet, visible with binoculars and discernable by its green coma, passed nearly in front of globular cluster M71. M71 was once thought to be an open cluster, but is now known to be an older globular cluster containing over 10,000 stars. The photogenic duo was captured with a standard digital camera in a 10-minute, wide-angle exposure toward the northern constellation of the Arrow (Sagitta). The stars Sham (Alpha Sagittae), Beta Sagittae, Gamma Sagittae, and the double star Delta Sagitta are all visible in a diagonal band running down from the upper left. Comet C/2009 P1 (Garradd), will remain visible in northern skies for months and will reach its closest approach to the Sun in December.

January
February
March
April
May
June
July
August
September
October
November
December
 < September 2011  >
Mo Tu We Th Fr Sa Su



1234
567891011
12131415161718
19202122232425
2627282930

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: comet - globular cluster
Publications with words: comet - globular cluster
See also:
All publications on this topic >>