A Giant Gathering of Galaxies
Sig15 013

Credit: NASA/JPL-Caltech/Gemini/CARMA

Observation • November 3rd, 2015 • sig15-013


The galaxy cluster called MOO J1142+1527 can be seen here as it existed when light left it 8.5 billion years ago. The red galaxies at the center of the image make up the heart of the galaxy cluster.

This color image is constructed from multi-wavelength observations: Infrared observations from NASA's Spitzer Space Telescope are shown in red; near-infrared and visible light captured by the Gemini Observatory atop Mauna Kea in Hawaii is green and blue; and radio light from the Combined Array for Research in Millimeter-wave Astronomy (CARMA), near Owens Valley in California, is purple.

In addition to galaxies, clusters also contain a reservoir of hot gas with temperatures in the tens of millions of degrees Celsius/Kelvin. CARMA was used to detect this gas, and to determine the mass of this cluster.

About the Object

MOO J1142+1527
Galaxy > Grouping > Cluster
8,500,000,000 Light Years

Color Mapping

Band Wavelength Telescope
Infrared 3.6 ┬Ám Spitzer IRAC
Infrared 950 nm Gemini
Optical 700 nm Gemini
Radio 967.0 cm CARMA


Position (J2000)
RA =11h 42m 46.4s
Dec = 15° 27' 13.9"
Field of View
3.5 x 3.5 arcminutes
North is 0.1° right of vertical