|
Collection:
|
|
NASA Astronomy Picture of the Day Collection
Collection
NASA Astronomy Picture of the Day Collection
Collection
|
|
Title:
|
|
Shapley 1: An Annular Planetary Nebula
Title
Shapley 1: An Annular Planetary Nebula
Title
|
|
Explanation:
|
What happens when a star runs out of nuclear fuel? The center condenses into a white dwarf [ http://antwrp.gsfc.…] while the outer atmospheric layers are expelled into space and appear as a planetary nebula. This particular planetary nebula, designated Shapley 1 [ http://www.aao.gov.…] after the famous astronomer Harlow Shapley, has a very apparent annular ring like structure. Although some of these nebulae appear like planets on the sky (hence their name), they actually surround stars far outside our Solar System.
Explanation
What happens when a star runs out of nuclear fuel? The center condenses into a white dwarf [ http://antwrp.gsfc.…] while the outer atmospheric layers are expelled into space and appear as a planetary nebula. This particular planetary nebula, designated Shapley 1 [ http://www.aao.gov.…] after the famous astronomer Harlow Shapley, has a very apparent annular ring like structure. Although some of these nebulae appear like planets on the sky (hence their name), they actually surround stars far outside our Solar System. Explanation
|
|
Credit and Copyright:
|
|
D. Malin (AAO), AATB
Credit_and_Copyright
D. Malin (AAO), AATB
Credit and Copyright
|
|
keyword:
|
|
Shapley 1
keyword
Shapley 1
keyword
|
|
keyword:
|
|
Planetary Nebula
keyword
Planetary Nebula
keyword
|
|
facet_where:
|
|
Goddard Space Flight Center (GSFC)
facet_where
Goddard Space Flight Center (GSFC)
facet_where
|
|
facet_what:
|
|
nebula
facet_what
nebula
facet_what
|
|
facet_what:
|
|
planetary nebula
facet_what
planetary nebula
facet_what
|
|
original url:
|
original_url
original url
|
|
UID:
|
|
SPD-APOD-ap000625
UID
SPD-APOD-ap000625
UID
|
