Technical facts about this news release: About this Object Object Name: SN1997ff Object Description: Supernova Type Ia in Hubble Deep Field North Galaxy 4-403.0 Position (J2000): R.A. 12h 36m 44.18s Dec. +62° 12' 44.8" Constellation: Ursa Major Distance: 3 billion parsecs (10 billion light-years) Redshift: z~1.7 About the Data Instrument: NICMOS; WFPC2 Exposure Dates: December 23, 1997 - June 22, 1998 Exposure Time: ~ 6 days Filters: F814W (I), F110W (J), F160W (H) Principal Astronomers: A.G. Riess (STScI), R. Thompson (U Arizona), R. Gilliland (STScI), P. Nugent (LBNL), B. Schmidt (MSSSO), J.Tonry (U Hawaii), M. Dickinson (STScI), T. Budavari (JHU), M. Livio (STScI), H. Spinrad (UC Berkeley), D. Stern (UC Berkeley), D. Sanders (U Hawaii), and S. Veilleux (U Maryland) . About this Image Image Credit: NASA and A. Riess (STScI) Release Date: April 2, 2001 1:00p.m. EDT Orientation: Hubble Spies Most Distant Supernova Ever Seen 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-2001-09l