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News Release Archive:

News Release 376 of 950

February 22, 2006 01:00 PM (EST)

News Release Number: STScI-2006-09

Hubble Confirms New Moons of Pluto

Technical facts about this news release:

About the Object
Object Name: Pluto
Object Description: Planet
Distance: Although its orbit is highly eccentric, Pluto's average distance from the Sun is 39.44 Astronomical Units (A.U.) or roughly 3.6 billion miles (5.9 billion kilometers).
Dimensions: Pluto has a diameter of roughly 1,416 miles (2,280 km) at the equator.
About the Data
Data Description: These HST data are from proposal 10774: H.A. Weaver (JHU/APL), S.A. Stern and J.R. Spencer (SwRI), M.W. Buie (Lowell Obs.), E. Young, L.A. Young, and A.J. Steffl (SwRI), M. Mutchler (STScI) and W.J. Merline (SwRI).
Instrument: ACS/HRC
Exposure Date(s): February 15, 2006
Filters: F606W (V)
About the Image
Image Credit: NASA, ESA, H. Weaver (JHU/APL), A. Stern (SwRI), and the HST Pluto Companion Search Team
Release Date: February 22, 2006
Color Assignment: This image was originally black and white and recorded only overall brightness. These brightness values were translated into a range of bluish hues. Such color "maps" can be useful in helping to distinguish subtly-varying brightness in an image. The colors in this image are not what human eyes would see looking at Pluto.
Orientation: The Pluto System on Feb. 15, 2006 (Annotated)