Technical facts about this news release: About the Object Object Name: Extended Groth Strip, EGS Object Description: Optical Survey Position (J2000): R.A. 14h 17m Dec. +52° 30' Constellation: Ursa Major Dimensions: The Extended Groth Strip is 1.1 degrees long by 0.15 degrees wide (70.5 x 10.1 arcminutes, respectively). About the Data Data Description: The Hubble image was created from HST data from proposal 10134: M. Davis (University of California, Berkeley), M. Ashby (Harvard-Smithsonian Center for Astrophysics), T. Small (California Institute of Technology), P. Guhathakurta (University of California, Santa Cruz), L. Simard (Dominion Astrophysical Observatory), K. Noeske (University of California, Santa Cruz), S. Kwok, J. Mader, and P. Amico (California Association for Research in Astronomy (CARA)), A. Koekemoer and R. Somerville (STScI), S. Faber (University of California, Santa Cruz), J. Newman (Lawrence Berkeley National Laboratory), D. Koo (University of California, Santa Cruz), S. White, G. Kauffmann, and V. Springel (Max Planck Institute for Astrophysics, Garching), M. Cooper (University of California, Berkeley), A. Metevier and B. Weiner (University of California, Santa Cruz), and K. Bundy (California Institute of Technology). Instrument: ACS Exposure Date(s): June, 2004 - March, 2005 Exposure Time: 3.2 days (76 hours) Filters: F555W ("V") + F814W ("I") About the Image Image Credit: NASA, ESA, M. Davis (University of California, Berkeley), S. Faber (University of California, Santa Cruz), and A. Koekemoer (STScI) Release Date: March 6, 2007 Color: This image is a composite of many separate exposures made by the WFPC2 instrument on the Hubble Space Telescope using two different filters to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: F606W ("V") blue F555W ("V") + F814W ("I") green F814W ("I") red Orientation: Extended Groth Strip - Detail of Hubble Image [ http://imgsrc.hubblesite.org/hu/db/2007/06/images/d/formats/compass_large_web.jpg ] *News Release Number:*: STScI-2007-06b