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Compass and Scale Images for NGC 1569
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.04h 30m 49.0s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.64° 50' 52.0"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Camelopardalis
- 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.11 million light-years (3.4 megaparsecs)
- DimensionsDimensionsThe physical size of the object or the apparent angle it subtends on the sky.This image is roughly 2.7 arcminutes (8,700 light-years or 2,700 parsecs) wide.
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.HST Proposal: 8133 P. Shopbell (Caltech), R. Dufour (Rice University), D. Walter (South Carolina State University), and A. Wilson (University of Maryland) HST Proposal: 10885 A. Aloisi (STScI/ESA) et al. The science team includes: A. Aloisi (STScI/ESA), L. Angeretti (Astronomical Observatory of Bologna/INAF), F. Annibali and L. Greggio (Astronomical Observatory of Padua/INAF), A. Grocholski (STScI), E. Held (Astronomical Observatory of Padua/INAF), J. Mack (STScI), D. Romano (Astronomical Observatory of Bologna/INAF), M. Sirianni (STScI/ESA), M. Tosi (Astronomical Observatory of Bologna/INAF), and R. van der Marel (STScI). - InstrumentInstrumentThe science instrument used to produce the data.HST>ACS/WFC and HST>WFPC2
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.September 1999, November 2006, and January 2007
- FiltersFiltersThe camera filters that were used in the science observations.ACS: F658N (H-alpha + [N II]) and F606W (wide V) WFPC2: F502N ([O III]), F487 (H-beta)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.NGC 1569
- Object DescriptionObject DescriptionThe type of astronomical object.Dwarf Irregular Galaxy
- Release DateNovember 20, 2008
- Science ReleaseHubble Resolves Puzzle about Loner Starburst Galaxy
- Credit
The image is a composite of separate exposures made by the ACS and WFPC2 instruments on the Hubble Space Telescope. Three filters were used to sample narrow-wavelength ranges. One filter was used to sample broad wavelengths. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Red: F658N (H-alpha + [N II]) Green/cyan: F606W (wide V) Cyan: F502N ([O III]) Blue: F487 (H-beta)
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Starburst Galaxy NGC 1569
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
