Leo II

Leo II (or Leon II) may refer to:

People

Armenian kings

Other

Leo II (emperor)

Leo II (Latin: Flavius Leo Iunior Augustus, Ancient Greek: Λέων Β', Leōn II; 467 – 17 November 474) was Byzantine Emperor for less than a year in 474. He was the son of Zeno and Ariadne, and maternal grandson of Leo I and Verina. As Leo's closest male relative, he was named successor upon his grandfather's death. After taking his father as colleague, he died of an unknown disease about 10 months into his reign in November, 474. It was widely rumored that he might have been poisoned by his mother Ariadne in order to bring her husband Zeno to the throne. He was indeed succeeded by his father, although his grandmother Verina took advantage of his death to conspire against Zeno.

External links

Leo II (dwarf galaxy)

Leo II (or Leo B) is a dwarf spheroidal galaxy about 690,000 light-years away in the constellation Leo. As of October 2008 it is one of 24 known satellite galaxies of the Milky Way. As of 2007 Leo II is thought to have a core radius of 178 ± 13 pc and a tidal radius of 632 ± 32 pc. It was discovered in 1950 by Robert George Harrington and Albert George Wilson, from the Mount Wilson and Palomar Observatories in California.

Recent Findings

In 2007 a team of 15 scientists observed Leo II through the 8.2 meter Subaru optical-infrared telescope in Mauna Kea, Hawaii. Over 2 nights, 90 minutes of exposures were taken and 82,252 stars were detected down to a visible magnitude of 26. They found that Leo II consists largely of metal-poor older stars, a sign that it has survived the galactic cannibalism under which massive galaxies (e.g., the Milky Way) consume smaller galaxies to attain their extensive size.

Observation at ESO estimates Leo II's mass to be (2.7 ± 0.5)×10⁷M_⊙.

See also