Pluto and Other Dwarf Planets: Discoveries in our Solar System – Dr. Michael Brown

(March 27, 2007) From the “Evenings with Astronomers” series. In 2005, Dr. Michael Brown and his colleagues discovered 2003 UB313, now officially known as “Eris.” The discovery marked the first time in 75 years that an object larger than Pluto had been found in our Solar System. The discovery turned the astronomical world on its head. Scientists had to consider if size was the only metric by which to define a planet. The debate unleashed an avalanche of questions concerning planetary science and the role scientists play in defining the word “planet” for local and global communities.

Science Standards: Earth in the Solar System; Forces that Shape the Earth; Scientific Views of the Universe.

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We are setting up MOSFIRE on Keck 1 for CIT observers, NIRC2-LGS on Keck 2 for UH observers. Sun set 06:37:00pm rise 06:32:00am
.@LindaLy79 Excellent question! Here is the best way to know: mkwc.ifa.hawaii.edu. It's dedicated just to Mauna Kea weather
CIT observers will work with MOSFIRE tonight. And UCI observers will work with DEIMOS. Sun set 06:36:00pm rise 06:33:00am
Observers from CIT will use MOSFIRE on Keck 1, while on Keck 2, UCI observers will use DEIMOS. Sun set 06:36:00pm rise 06:34:00am
On Keck 1, we have NASA observers using MOSFIRE. On Keck 2, we have CIT observers using DEIMOS. Sun set 06:35:00pm rise 06:34:00am