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Collection:
NASA Astronomy Picture of the Day Collection Collection NASA Astronomy Picture of the Day Collection Collection
Title:
The Comet and the Galaxy Title The Comet and the Galaxy Title
Explanation:
The Moon almost ruined this photograph. During late March and early April 1997, Comet Hale-Bopp [ http://www.jpl.nasa…] passed nearly in front of the Andromeda Galaxy [ http://antwrp.gsfc.…]. Here the Great Comet of 1997 [ http://medicine.wus…] and the Great Galaxy in Andromeda [ http://www.seds.org…] were photographed together [ http://antwrp.gsfc.…] on 1997 March 24th. The problem was the brightness of the Moon [ http://antwrp.gsfc.…]. The Moon [ http://www.seds.org…] was full that night and so bright that long exposures meant to capture the tails of Hale-Bopp [ http://antwrp.gsfc.…] and the disk of M31 [ http://antwrp.gsfc.…] would capture instead only moonlight reflected off the Earth's atmosphere. By the time the Moon would set, this opportunity would be gone. That's why this picture was taken during a lunar eclipse [ http://antwrp.gsfc.…]. Explanation The Moon almost ruined this photograph. During late March and early April 1997, Comet Hale-Bopp [ http://www.jpl.nasa…] passed nearly in front of the Andromeda Galaxy [ http://antwrp.gsfc.…]. Here the Great Comet of 1997 [ http://medicine.wus…] and the Great Galaxy in Andromeda [ http://www.seds.org…] were photographed together [ http://antwrp.gsfc.…] on 1997 March 24th. The problem was the brightness of the Moon [ http://antwrp.gsfc.…]. The Moon [ http://www.seds.org…] was full that night and so bright that long exposures meant to capture the tails of Hale-Bopp [ http://antwrp.gsfc.…] and the disk of M31 [ http://antwrp.gsfc.…] would capture instead only moonlight reflected off the Earth's atmosphere. By the time the Moon would set, this opportunity would be gone. That's why this picture was taken during a lunar eclipse [ http://antwrp.gsfc.…]. Explanation
Credit and Copyright:
J. C. Casado [ mailto:paikardhu@red estb.es ] Credit_and_Copyright J. C. Casado [ mailto:paikardhu@red estb.es ] Credit and Copyright
keyword:
galaxy keyword galaxy keyword
keyword:
comet keyword comet keyword
keyword:
Hale-Bopp keyword Hale-Bopp keyword
keyword:
M31 keyword M31 keyword
facet_when:
1997 facet_when 1997 facet_when
facet_when:
April 1997 facet_when April 1997 facet_when
facet_where:
M31 facet_where M31 facet_where
facet_where:
Andromeda Galaxy facet_where Andromeda Galaxy facet_where
facet_where:
Goddard Space Flight Center (GSFC) facet_where Goddard Space Flight Center (GSFC) facet_where
facet_where:
Jet Propulsion Laboratory (JPL) facet_where Jet Propulsion Laboratory (JPL) facet_where
facet_what:
Earth facet_what Earth facet_what
facet_what:
Moon facet_what Moon facet_what
facet_what:
Andromeda facet_what Andromeda facet_what
facet_what:
Opportunity facet_what Opportunity facet_what
facet_what:
comet facet_what comet facet_what
facet_when_year:
1997 facet_when_year 1997 facet_when_year
original url:
http://antwrp.gsfc.… original_url http://antwrp.gsfc.… original url
UID:
SPD-APOD-ap990314 UID SPD-APOD-ap990314 UID

The Comet and the Galaxy

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The Comet and the Galaxy