News Release Archive:

News Release 381 of 1051

February 5, 2008 09:00 AM (EST)

News Release Number: STScI-2008-07

Isolated Galaxy or Corporate Merger? Hubble Spies NGC 1132

Technical facts about this news release:

About the Object
Object Name: NGC 1132
Object Description: Elliptical Galaxy
Position (J2000): R.A. 02h 52m 51.72s
Dec. -01° 16' 10."9
Constellation: Eridanus
Distance: 318 million light-years or 97 megaparsecs
About the Data
Data Description: The image created from HST data from proposal 10558: M. West (European Organization for Astronomical Research in the Southern Hemisphere (ESO)), M. Gregg (University of California, Davis), P. Cote (Dominion Astrophysical Observatory), S. van den Bergh (Dominion Astrophysical Observatory), and M. Drinkwater (University of Queensland).
Instrument: ACS/WFC
Exposure Date(s): September 25, 2005; August 22, 2006
Exposure Time: 4.8 hours
Filters: F475W (SDSS g), F850LP (SDSS z)
About the Image
Image Credit: NASA, ESA and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration Acknowledgment: M. West (ESO, Chile)
Release Date: February 5, 2008

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. A third, intermediate image was created by combining the two existing images and assigned to the intermediate primary color. In this case, the assigned colors are:

F475W (g) blue
F475W (g) + F850LP (z) green
F850LP (z) red
Orientation: Elliptical Galaxy NGC 1132 - Hubble