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Collection:
NASA Astronomy Picture of the Day Collection Collection NASA Astronomy Picture of the Day Collection Collection
Title:
Irregular Moons Discovered Around Uranus Title Irregular Moons Discovered Around Uranus Title
Explanation:
Where did these two irregular moons of Uranus [ http://www.seds.org…] originate? Last week two previously undiscovered moons [ http://www.cita.uto…] of the distant gas planet were confirmed [ http://cfa-www.harv…], the first in irregular orbits. All fifteen previously known moons [ http://www.seds.org…] of Uranus [ http://bang.lanl.go…] are 'regular', circling near the planet's equator. Most of these were discovered by the passing Voyager 2 spacecraft [ http://vraptor.jpl.…] in 1986. These newly discovered moons [ http://www.news.cor…] are thought to be odd-shaped and about 100 km across. They are considered irregular, though, because they orbit in odd directions and far from Uranus [ http://antwrp.gsfc.…]. If Uranus' irregular moons have the same origin as those orbiting Jupiter [ http://www.seds.org…], Saturn [ http://pds.jpl.nasa…], and Neptune [ http://spacelink.ms…], then they were probably caught from orbits around the Sun [ http://antwrp.gsfc.…]. Moons like this are discovered by their motion. One of these moons is shown above [ http://www.cita.uto…] as the circled point of light moving from left to right. (To stop the movie from repeating, click "stop" on most browsers.) Explanation Where did these two irregular moons of Uranus [ http://www.seds.org…] originate? Last week two previously undiscovered moons [ http://www.cita.uto…] of the distant gas planet were confirmed [ http://cfa-www.harv…], the first in irregular orbits. All fifteen previously known moons [ http://www.seds.org…] of Uranus [ http://bang.lanl.go…] are 'regular', circling near the planet's equator. Most of these were discovered by the passing Voyager 2 spacecraft [ http://vraptor.jpl.…] in 1986. These newly discovered moons [ http://www.news.cor…] are thought to be odd-shaped and about 100 km across. They are considered irregular, though, because they orbit in odd directions and far from Uranus [ http://antwrp.gsfc.…]. If Uranus' irregular moons have the same origin as those orbiting Jupiter [ http://www.seds.org…], Saturn [ http://pds.jpl.nasa…], and Neptune [ http://spacelink.ms…], then they were probably caught from orbits around the Sun [ http://antwrp.gsfc.…]. Moons like this are discovered by their motion. One of these moons is shown above [ http://www.cita.uto…] as the circled point of light moving from left to right. (To stop the movie from repeating, click "stop" on most browsers.) Explanation
Credit and Copyright:
B. Gladman (CITA [ http://www.cita.uto…]) et al., Hale 5-meter Telescope [ http://www.mtwilson…], Palomar Obs. [ http://astro.caltec…] Credit_and_Copyright B. Gladman (CITA [ http://www.cita.uto…]) et al., Hale 5-meter Telescope [ http://www.mtwilson…], Palomar Obs. [ http://astro.caltec…] Credit and Copyright
keyword:
planets keyword planets keyword
keyword:
Uranus keyword Uranus keyword
keyword:
moons keyword moons keyword
facet_when:
1986 facet_when 1986 facet_when
facet_where:
Saturn facet_where Saturn facet_where
facet_where:
Jupiter facet_where Jupiter facet_where
facet_where:
Uranus facet_where Uranus 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_where:
Marshall Space Flight Center (MSFC) facet_where Marshall Space Flight Center (MSFC) facet_where
facet_what:
Voyager facet_what Voyager facet_what
facet_what:
Sun facet_what Sun facet_what
facet_what:
Saturn facet_what Saturn facet_what
facet_what:
Jupiter facet_what Jupiter facet_what
facet_what:
Voyager 2 facet_what Voyager 2 facet_what
facet_what:
Neptune facet_what Neptune facet_what
facet_what:
Uranus facet_what Uranus facet_what
facet_when_year:
1986 facet_when_year 1986 facet_when_year
original url:
http://antwrp.gsfc.… original_url http://antwrp.gsfc.… original url
UID:
SPD-APOD-ap971103 UID SPD-APOD-ap971103 UID

Irregular Moons Discovered Around Uranus

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Irregular Moons Discovered Around Uranus