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Compass and Scale Image of HR 8799
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.23h 7m 28.65s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.21° 8' 3.69"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Pegasus
- 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.130 light-years or 40 parsecs
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.The original NICMOS data were from the HST proposal 7226: E. Becklin (University of California, Los Angeles) et al. The science team comprises: R. Soummer, B. Hagan, and A. Rajan (STScI), L. Pueyo and A. Thormann (JHU), and C. Marois (Herzberg Institute of Astrophysics, Victoria). - InstrumentInstrumentThe science instrument used to produce the data.HST>NICMOS/NIC2
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.October 30, 1998, Exposure Time: 20 minutes
- FiltersFiltersThe camera filters that were used in the science observations.F160W
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.HR 8799
- Object DescriptionObject DescriptionThe type of astronomical object.Star with planets
- Release DateOctober 6, 2011
- Science ReleaseAstronomers Find Elusive Planets in Decade-Old Hubble Data
- Credits
This image was originally black and white and recorded only overall brightness. These brightness values were translated into a range of arbitrary colors. Such color "maps" can be useful in helping to distinguish subtly varying brightness in an image.
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
