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News Release Archive:

News Release 582 of 955

October 31, 2000 01:00 AM (EST)

News Release Number: STScI-2000-33

Astronomers Ponder Lack of Planets in Globular Cluster

Technical facts about this news release:

About this Object 
Object Name: 47 Tucanae, NGC 104
Object Description: Globular Cluster
Position (J2000): R.A. 00h 24m 06.21s
Dec. -72° 05' 00.5"
Constellation: Tucana
Magnitude: V4.5, B-V0.88
Distance: About 15,000 light-years (4.6 kpc)
Diameter: About 200 light-years
Dimensions: The width of the image is 120 arcseconds (~9 light-years).
About the Data 
Instrument: WFPC2
Exposure Dates: July 3 - 11, 1999
Exposure Time: 61.7 hours
Filters: Red: F814W (I), Green: F555W (V), Blue: F336W (U)
Principal Astronomers: R. Gilliland (STScI), T. Brown (High Altitude Observatory), A. Burrows (U. Arizona), W. Cochran (U. Texas, Austin), P. Edmonds (SAO), S. Frandsen (Aarhus U.), P. GuhaThakurta (UCSC), D. Lin (UCSC), G. Marcy (UCB), M. Mayor (Observatoire de Geneve), E. Milone (U. Calgary), D. Naef (Observatoire de Geneve), A. Sarajedini (Wesleyan U.), S. Sigurdsson (PSU), D. VandenBerg (UVic), S. Vogt (UCSC), M. Albrow (STScI), N. Baliber (U. Texas, Austin), H. Bruntt (Aarhus U.), D. Charbonneau (High Altitude Observatory), P. Choi (UCSC), J. Howell (UCSC), R. Stagg (U. Calgary), M. Williams (U. Calgary).
About this Image 
Release Date: October 26, 2000 1:00 a.m. (EDT)
Orientation: Hubble Sees a Vast