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News

W.M. Keck Observatory

Bulletin at a Glance News Observing This Week's Sky at a Glance

All Hail Eris and Dysnomia

September 14, 2006 | The bigger-than-Pluto object 2003 UB₃₁₃ (previously known as Xena) finally has a name. This Kuiper Belt object, which ignited the heated planet-definition debate, will be known as Eris — named for the Greek goddess of strife and discord. ... > read more

New AAS Award for Backyard Research

September 12, 2006 | A new award from the American Astronomical Society recognizes the contribution of backyard stargazers to advancing the science of astronomy.... > read more

Pluto Gets an Asteroid Number

September 11, 2006 | Without fanfare, the September 7th batch of circulars from the Minor Planet Center assigns number 134340 to Pluto.... > read more

Observing

Laurent Laveder

Your Lunar Eclipse Pictures

September 13, 2006 | On the night of September 7 – 8, a partial lunar eclipse graced the skies above Europe, Africa, Asia, and Australia. Although the Moon barely entered Earth's umbra (full shadow), plenty of astrophotographers captured the tiny nibble taken out of the edge of Luna.... > read more

This Week's Sky at a Glance

This Week's Sky at a Glance

September 15, 2006 | As summer turns to fall, Vega is giving way to Deneb overhead at dusk, while Jupiter is sinking ever lower in the southwest. On the 22nd, an annular eclipse of the Sun rises at dawn in coastal jungles of South America.... > read more