*Description*: This picture was created from observations with the T2KA CCD camera at the Kitt Peak National Observatory's 0.9-meter telescope in March 1995. Technical facts about this news release: About the Object Object Name: M4 (NGC 6121) Object Description: Globular Cluster Position (J2000): R.A. 16h 23m 35.4s Dec. -26° 31' 31.9" Constellation: Scorpius Distance: M4 is roughly 5,600 light-years from the Earth. About the 1995 HST Data Instrument: WFPC2 Exposure Date(s): February - March 1995 Exposure Time: 1.2 days Principal Astronomers: H. Richer (UBC), D. Vandenberg (U.Victoria), P. Stetson (DAO), M. Bolte (UCSC/Lick Obs.), C. Pryor (Rutgers U.), R. Mcclure (DAO), J. Hesser (DAO), G. Fahlman (CFHT), H. Bond (STScI), R. Bell (U. Maryland) Filters: F336W (B), F555W (V), F814W (I) About the 2001 HST Data Instrument: WFPC2; STIS (MULTIACCUM) Exposure Date(s): January - April 2001 Exposure Time: 7.4 days Principal Astronomers: H. Richer (U. British Columbia), G. Fahlman (CFHT), B. Gibson (U. Colorado), B. Hansen (Princeton U.), R. Ibata (ESO), M. Limongi (Osservatorio Astronomico di Roma), M. Rich (UCLA), M. Shara (AMNH), P. Stetson (DAO) Filters: F336W (B), F555W (V), F814W (I) About the Image Image Credit: NASA and H. Richer (U. British Columbia) Release Date: April 24, 2002 What is a Space Science Update? Major Hubble discoveries on NASA television ... Astronomers explain their Hubble discoveries at a press conference, called a Space Science Update (SSU), broadcast on NASA television. The SSU includes a question and answer session with members of the media. Back to top [ #top ] *News Release Number:*: STScI-2002-10b
