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News Release Archive:

News Release 25 of 90

April 3, 2009 01:00 PM (EDT)

News Release Number: STScI-2009-14

Hubble Celebrates the International Year of Astronomy with the Galaxy Triplet Arp 274

Technical facts about this news release:

About the Object
Object Name: Arp 274, NGC 5679
Object Description: Triple galaxy system
Position (J2000): R.A. 14h 35m 8s.83
Dec. +05° 21' 30".80
Constellation: Virgo
Distance: 400 million light-years or 120 megaparsecs
Dimensions: The image is nearly 2 arcminutes (216,000 light-years) wide.
About the Data
Data Description: The Hubble images were created from HST data from proposals 11994: M. Livio (STScI), Z. Levay, L. Frattare, K. Noll, M. Mutchler, and W. Januszewski (Hubble Heritage Team/STScI).
Instrument: WFPC2
Exposure Date(s): April 1/2, 2009
Filters: F450W (B), F606W (V), F814W (I), and F673N (redshifted H-alpha)
About the Release
Image Credit: NASA, ESA, M. Livio and the Hubble Heritage Team (STScI/AURA)
Release Date: April 3, 2009
Color: The image is a composite of separate exposures made by the WFPC2 instrument on the Hubble Space Telescope. Three filters were used to sample broad wavelength ranges. One filter was used to sample narrowband emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
F673N (redshifted H-alpha) red
F814W (I) red
F606W (V) green
F450W (B) blue
Orientation/Scale: Compass and Scale Image of Arp 274