Halfway Around the World for 5 Minutes of data . Learning about the atmosphere of Pluto. Jeff Regester Greensboro Day School. Outline. History of Pluto and Outer Solar System science Occultations New Horizons . Pluto’s Discovery. Discovered by accident, on purpose
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Halfway Around the World for 5 Minutes of data
Learning about the atmosphere of Pluto
Jeff RegesterGreensboro Day School
Discovered by accident, on purpose
by Clyde Tombaugh, Lowell Observatory, 1930
Charon, discovered in 1978
by Jim Christie, USNO
MPluto = MMercury/20
Nix and Hydra, discovered in 2005 by Alan Stern et al, using HST
Jewitt & Luu
A comparison of the size of Sedna, the largest known KBO in 2004, to various planets and moons. (NACO Team, 8.2-meter VLT (Yepun), ESO, apod040827)
Dysnomia’s orbit P=16d MEris= 1.27 MPluto Houston, we have a problem!
goodbye “minor planets”
RESOLUTION 6AThe IAU further resolves:Pluto is a "dwarf planet" by the above definition and is recognized as the prototype of a new category of trans-Neptunian objects.
Position in shadow
Chris L. Peterson, Cloudbait Observatory, Colorado
Predicting Occultations Ain’t Easy!
Mt. Canopus Obs, Hobart, TAS
July 13th, 2015