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Astronomy Picture of the Day 7-19-03
NASA ^ | 7-19-03 | Robert Nemiroff and Jerry Bonnell

Posted on 07/18/2003 9:24:53 PM PDT by petuniasevan

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2003 July 19
See Explanation.  Clicking on the picture will download
 the highest resolution version available.

NGC 3621: Far Beyond the Local Group
Credit: F. Bresolin, R.-P. Kudritzki, R. Mendez (Institute for Astronomy, Univ. Hawaii)

Explanation: Far beyond the local group of galaxies lies NGC 3621, some 22 million light-years away. Found in the serpentine southern constellation Hydra, the loose spiral arms of this gorgeous island universe are loaded with luminous young star clusters and dark dust lanes. Still, for earthbound astronomers NGC 3621 is not just another pretty face-on spiral galaxy. Some of its brighter stars have been used as standard candles to establish important estimates of extragalactic distances and the scale of the Universe. This color picture was constructed from astronomical image data recorded with the Very Large Telescope Antu, at Paranal Observatory in Chile. At the original resolution, individual, hot supergiant stars can be identified and studied across NGC 3621.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: galaxy; spiral
This galaxy is about 10 times as far away from us as is Local Group member Andromeda Galaxy M31.

NGC 3621 in Hydra


Right Ascension: 11 : 18.3 (hours : minutes)
Declination: -32 : 49 (degrees : minutes)
Apparent Magnitude: 10. p
Apparent Diameter: 10.0 (arc minutes)

1 posted on 07/18/2003 9:24:53 PM PDT by petuniasevan
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To: MozartLover; Joan912; NovemberCharlie; snowfox; Dawgsquat; viligantcitizen; theDentist; ...

2 posted on 07/18/2003 9:25:45 PM PDT by petuniasevan (I gave a researcher $100 to trace my family tree, then paid $500 to keep it a secret!)
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To: All
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3 posted on 07/18/2003 9:27:15 PM PDT by Support Free Republic (Your support keeps Free Republic going strong!)
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To: petuniasevan
Good morning
bttt
4 posted on 07/19/2003 6:54:35 AM PDT by firewalk
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To: petuniasevan
Thanks for the ping.
5 posted on 07/19/2003 7:13:53 AM PDT by sistergoldenhair (Don't be a sheep. People hate sheep. They eat sheep.)
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