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Hubble Views the Pluto System
About the Object
- DistanceDistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.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).
- DimensionsDimensionsThe physical size of the object or the apparent angle it subtends on the sky.Pluto has a diameter of roughly 1,475 miles (2,280 km) at the equator.
About the Data
- Data DescriptionData DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.These HST data are from proposal 10427: H.A. Weaver (JHU/APL), M.W. Buie (Lowell Obs.), S.A. Stern, J.R. Spencer, E. Young, and L.A. Young (SwRI); and proposal 9391: M.W. Buie and W.M. Grundy (Lowell Obs.), E. Young, L.A. Young, and S.A. Stern (SwRI). M. Mutchler (STScI) and A.J. Steffl (SwRI) are also on the science team. - Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.June 11, 2002 (left), May 15, 2005 (center), and May 18, 2005 (right)
- FiltersFiltersThe camera filters that were used in the science observations.ACS/HRC (2002): F475W (B) and F555W (V) ACS/WFC (2005): F606W (V)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.Pluto
- Object DescriptionObject DescriptionThe type of astronomical object.Dwarf Planet
- Release DateOctober 31, 2005
- Science ReleaseNASA’s Hubble Reveals Possible New Moons Around Pluto
- Credits
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
