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Spiral Galaxy M81 Details 3
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.09h 55m 32.99s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.69° 3' 55.0"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Ursa Major
- 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.Approximately 11.6 million light-years (3.6 megaparsecs)
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 ACS data was from the HST proposal 10584: A. Zezas, G. Fabbiano, A. Prestwich, and M. Garcia (Harvard-Smithsonian Center for Astrophysics), J. Gallagher (University of Wisconsin, Madison), J. Miller (University of Michigan), P. Kaaret (University of Iowa), V. Kalogera (Northwestern University), M. Ward (University of Durham), and A. King (University of Leicester); and proposal 10250: J. Huchra, P. Barmby, and B. Mcleod (Harvard-Smithsonian Center for Astrophysics) and J. Brodie and J. Strader (University of California, Santa Cruz). - 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.2004 - 2006
- FiltersFiltersThe camera filters that were used in the science observations.F435W (B), F606W (V), F814W (I)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.M81, NGC 3031, Bode's Galaxy
- Object DescriptionObject DescriptionThe type of astronomical object.Spiral Galaxy
- Release DateMay 28, 2007
- Science ReleaseHubble Photographs Grand Design Spiral Galaxy M81
- Credits
This image is a composite of many separate exposures made by the ACS instrument on the Hubble Space Telescope. Three filters were used to sample light from broad wavelengths. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F435W (B) Green: F606W (V) Red: F814W (I)
Related Images & Videos
Hubble Photographs Grand Design Spiral Galaxy M81
The sharpest image ever taken of the large "grand design" spiral galaxy M81 is being released today at the American Astronomical Society Meeting in Honolulu, Hawaii. This beautiful galaxy is tilted at an oblique angle on to our line of sight, giving a "birds-eye view" of the...
Detailed Images of Spiral Galaxy M81
Hubble's high-resolution images of distinct regions contained within M81 illustrate various structures contained within the spiral galaxy. [Left] The inner bulge and nucleus of M81 are relatively structure free, except for fine dust lanes that wind into the center. Several...
Hubble/GALEX/Spitzer Composite Image of M81
This image combines data from the Hubble Space Telescope, the Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX) missions. The GALEX ultraviolet data were from the far-UV portion of the spectrum (135 to 175 nanometers). The Spitzer infrared data were taken with...
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Details
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
