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Westerlund 2: Detail 1
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.10h 23m 58.1s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.-57° 45' 48.96"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Carina
- 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.20,000 light-years (6,130 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.Data of Westerlund 2 were obtained from the HST proposals 13038: A. Nota (ESA/STScI), E. Sabbi and C. Christian (STScI), E. Grebel and P. Zeidler (Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg), M. Tosi (INAF, Osservatorio Astronomico di Bologna), A. Bonanos (National Observatory of Athens, Astronomical Institute), and S. de Mink (University of Amsterdam); and 14039: Z. Levay, M. Mutchler, J. Mack, L. Frattare, S. Meyett, M. Livio, and C. Christian (STScI/AURA), K. Noll (NASA/GSFC), A. Nota (STScI/ESA), and E. Sabbi (STScI). - InstrumentInstrumentThe science instrument used to produce the data.HST>ACS/WFC and HST>WFC3/IR
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.September 2013 - November 2014, Total Exposure Time: 23,074 seconds
- FiltersFiltersThe camera filters that were used in the science observations.ACS/WFC: F555W (V) and F814W (I) WFC3/IR: F125W (J)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.Westerlund 2, Gum 29
- Object DescriptionObject DescriptionThe type of astronomical object.Cluster and Starforming Region
- Release DateApril 23, 2015
- Science ReleaseHubble Space Telescope Celebrates 25 Years of Unveiling the Universe
- Credit
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Details
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
