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Hubble ACS SWEEPS Field
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.17h 58m 59.99s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.-29° 12' 0.0"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Sagittarius
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.This image was created from HST data from proposal 9750: K. Sahu, R. Gilliland, H. Bond, S. Casertano, M. Livio, and N. Panagia (STScI), T. Brown (University Corporation for Atmospheric Research), D. Minniti (Catholic University of Chile), A. Renzini (Astronomical Observatory of Padova, Italy), R. Rich (University of California, Los Angeles), and M. Zoccali (Catholic University of Chile). The science findings also include data taken with the HST proposal 10466: K. Sahu (STScI) et al. Additional members of the science team include W. Clarkson (Indiana University and UCLA), and T. Brown, E. Smith, and J. Anderson (STScI). - InstrumentInstrumentThe science instrument used to produce the data.HST>ACS/WFC
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.February 22 - 29, 2004, Exposure Time: 49 hours
- FiltersFiltersThe camera filters that were used in the science observations.F606W (R) and F814W (I)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.SWEEPS Field
- Object DescriptionObject DescriptionThe type of astronomical object.Stellar Field Near the Galactic Bulge
- Release DateMay 25, 2011
- Science ReleaseNASA’s Hubble Finds Rare Blue Straggler Stars in the Milky Way’s Hub
- Credit
This image is a composite of many separate exposures made by the ACS instrument on the Hubble Space Telescope using two different filters. Two filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F606W (R) Green: F606W (R) + F814W (I) Red: F814W (I)
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Details
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
