News Release Archive:

News Release 17 of 95

January 11, 2012 10:45 AM (EST)

News Release Number: STScI-2012-04

Hubble Zooms in on Double Nucleus in Andromeda Galaxy

Technical facts about this news release:

About the Object
Object Description: Nucleus of M31
Position (J2000): R.A. 00h 42m 44s
Dec. +41° 16' 9"
Constellation: Andromeda
Distance: About 2.5 million light-years (0.8 megaparsecs)
About the Data
Data Description: These images were created from Hubble data from proposal 10571: T. Lauer (NOAO), J. Kormendy and K. Gebhardt (University of Texas, Austin), R. Bender (Universitats-Sternwarte, Munich), and R. Green (NOAO).
Instrument: ACS/HRC
Exposure Date(s): June 15-16, 2007
Exposure Time: 2.9 hours
Filters: F330W (u) and F435W (B)
About the Release
Credit: NASA, ESA, and T. Lauer (NOAO)
Release Date: January 11, 2012
Color: This image is a composite of separate exposures acquired by the ACS instrument on HST. Several filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are:
F330W (u) blue
F435W (B) orange
Orientation/Scale: Compass and Scale Image of M31 Center