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News Release Archive:

News Release 226 of 950

April 30, 2009 09:00 AM (EDT)

News Release Number: STScI-2009-19

Starbursts in Dwarf Galaxies are a Global Affair

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Image: Hubble ACS Image of NGC 4163

Hubble ACS Image of NGC 4163

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Object Name: NGC 4163

Image Type: Astronomical

Credit: NASA, ESA, and K. McQuinn (University of Minnesota, Minneapolis)

Technical facts about this image:

About the Object
Object Name: NGC 4163
Object Description: Starburst Galaxy
Position (J2000): R.A. 12h 12m 09s.16
Dec. +36° 10' 09".12
Constellation: Canes Venatici
Distance: 9.5 million light-years or 2.9 megaparsecs
Dimensions: This image is 88 arcseconds (4,000 light-years or 1,200 parsecs) wide.
About the Data
Data Description:

The images were created from Hubble data from proposal 9771: I. Karachentsev (Russian Academy of Sciences, Special Astrophysical Observatory), B. Tully (University of Hawaii), V. Karachentseva (Kyiv University), A. Dolphin (Raytheon Company), S. Sakai (University of California, Los Angeles), E. Shaya (University of Maryland), and M. Sharina, L. Makarova, and D. Makarov (Russian Academy of Sciences, Special Astrophysical Observatory).

The science team comprises K. McQuinn and E. Skillman (University of Minnesota, Minneapolis), J. Cannon (Macalester College, MN), J. Dalcanton (University of Washington, Seattle), A. Dolphin (Raytheon Company), and D. Stark and D. Weisz (University of Minnesota, Minneapolis).

Instrument: ACS
Exposure Date(s): January 18, 2004
Exposure Time: 35 minutes
Filters: F606W (R) and F814W (I)
About the Image
Credit: NASA, ESA, and K. McQuinn (University of Minnesota, Minneapolis)
Release Date: April 30, 2009
Color: The image is a composite of separate exposures made by the ACS instrument on the Hubble Space Telescope. 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:
F814W (I) yellow
F606W (R) cyan
Orientation/Scale: Hubble ACS Image of NGC 4163

NEWS RELEASE IMAGES

The above image is part of a montage:

Montage Image: Hubble Spies a Frenzy of Star Birth in Dwarf Galaxies Image Type: Astronomical/Annotated Hubble Spies a Frenzy of Star Birth in Dwarf GalaxiesPRC2009-19 Hubble ACS Image of NGC 4068 Image Type: Astronomical Hubble ACS Image of NGC 4068 Hubble ACS Image of IC 4662 Image Type: Astronomical Hubble ACS Image of IC 4662

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