Technical facts about this news release: About the Object Object Name: B1620-26 in M4 (NGC 6121) Object Description: Pulsar with Companion in 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 (1,720 parsecs) from the Earth. About the Data Data Description: Data for this release was taken from HST proposals 5461 and 8679 together with archived observations from HST proposal 8153. The full team involved in this discovery is composed of Brad Hansen (UCLA), Harvey Richer (UBC), Steinn Sigurdsson (Penn State), Ingrid Stairs (UBC) and Stephen Thorsett (UCSC). Instrument: WFPC2 Exposure Date(s): February - April 1995; January - April 2001 Filters: F336W ("B") 11,800 sec F555W ("V") 15,000 sec F814W ("I") 4800 sec About the Image Image Credit: NASA and H. Richer (U. British Columbia) Release Date: July 10, 2003 Orientation: Globular Cluster M4 [ http://imgsrc.hubblesite.org/hu/db/2003/19/images/d/formats/compass_large_web.jpg ] What is a NASA Science Update? Major Hubble discoveries on NASA television ... Astronomers explain their Hubble discoveries at a press conference, called a NASA Science Update (NSU), broadcast on NASA television. The NSU includes a question and answer session with members of the media. Back to top [ #top ] *News Release Number:*: STScI-2003-19i