News Release Archive:

News Release 197 of 1051

September 19, 2012 01:00 PM (EDT)

News Release Number: STScI-2012-31

NASA Telescopes Spy Ultra-Distant Galaxy Amidst Cosmic 'Dark Ages'

Technical facts about this news release:

About this Object
Object Name: MACS J1149+2223, MACS1149-JD
Object Description: Galaxy Cluster/Gravitational Lens and z=9.6 Galaxy Candidate
Position (J2000): R.A. 11h 49m 35s.51
Dec. +22° 24' 04".21
Constellation: Leo
Distance: The distance to the cluster is 5.3 billion light-years (1.6 billion parsecs or redshift z = 0.544). The distance to the lensed source is 13.2 billion light-years (4 billion parsecs or redshift z = 9.6).
About the Hubble Data
Data Description: The image was created from Hubble data from proposals 9722: PI: H. Ebeling (University of Hawaii); and 12068: PI: M. Postman (STScI).
Instrument: ACS/WFC and WFC3/IR
Exposure Date(s): 2004, 2010, and 2011
Exposure Time: 11.3 hours
About this Release
Image Credit: NASA, ESA, W. Zheng (JHU), M. Postman (STScI), and the CLASH Team
Release Date: September 19, 2012

This image is a composite of separate exposures acquired by the ACS and WFC3 instruments. Several filters were used to sample various wavelengths. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated     

ACS/WFC F435W(B)+F475W(g)+F555W(V) blue
ACS/WFC F606W(V)+F625W(r)+F775W(I) green
ACS/WFC F814W(I)+F850LP(z) WFC3/IR F105W(Y)+F110W(YJ)+F125W(J)+F140W(JH)+F160W(H) red
Orientation: Compass and Scale Image of MACS J1149+2223