News Release Archive:

News Release 18 of 71

December 4, 2008 09:00 AM (EST)

News Release Number: STScI-2008-40

A Celestial Snow Globe of Stars

Technical facts about this news release:

About the Object
Object Name: M13, NGC 6205
Object Description: Globular Cluster
Position (J2000): R.A. 16h 41m 41s.63
Dec. +36° 27' 40".72
Constellation: Hercules
Distance: 25,000 light-years (7.6 kiloparsecs)
Dimensions: This image is roughly 4.9 arcminutes (36 light-years or 11 parsecs) wide.
About the Data
HST Proposal: 8174 8278 10349 10775
Science Team: W. van Altena (Yale University) C. Bailyn
(Yale University)
W. Lewin
A. Sarajedini
(University of Florida)
Instrument: WFPC2 WFPC2 ACS ACS
Filters: F555W (V), F785LP (I) F555W (V), F814W (I) F435W (B) F555W (V), F814W (I)
Exposure Dates: April 2000 November 1999 August 2005 April 2006
About the Release
Release Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
Acknowledgment C. Bailyn (Yale University), W. Lewin (Massachusetts Institute of Technology), A. Sarajedini (University of Florida), and W. van Altena (Yale University)
Release Date: December 4, 2008
Color The image is a composite of separate exposures made by the ACS and WFPC2 instruments on the Hubble Space Telescope. Several filters were used to sample broad wavelengths. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
ACS F814W (I) red
ACS F555W (V) green
ACS F435W (B) blue
WFPC2 F814W (I) yellow/orange
WFPC2 F785LP (I) yellow/orange
WFPC2 F555W (V) cyan/blue
Orientation: Compass and Scale Image of M13