NGC 6240
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NGC 6240, also known as the Starfish Galaxy, is a nearby ultraluminous infrared galaxy in the constellation Ophiuchus. It was discovered by French astronomer Édouard Stephan on 12 July 1871.
NGC 6240 imaged by the Hubble Space Telescope. At the centre there are two supermassive black holes spiraling closer and closer to one another.
X-ray image of NGC 6240 taken with the Chandra X-Ray Observatory, superimposed on an optical image of the galaxy. The X-ray emission from the two active galactic nuclei can be seen as bright blue point sources. Credit: NASA
Arp 148, VV 340, Arp 256, NGC 6670, NGC 6240, ESO 593-8, NGC 454, UGC 8335, NGC 6786, NGC 17, ESO 77-14, Arp 272
Hubble and Keck observatories uncover black holes coalescing.
Luminous infrared galaxy
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Luminous infrared galaxies or LIRGs are galaxies with luminosities above 1011 L☉. They are also referred to as submillimeter galaxies through their normal method of detection. LIRGs are more abundant
NGC 6240
…NGC 6240, also known as the Starfish Galaxy, is a nearby ultraluminous infrared galaxy (ULIRG) in the constellation Ophiuchus. It was discovered by French astronomer Édouard Stephan on 12 July 1871. The galaxy is the remnant of a merger…
IRAS 14348-1447 is an ultraluminous infrared galaxy, located over a billion light-years away.
South America Galaxy taken by the Hubble Space Telescope
2MASX J05210136-2521450.
Ultraluminous Infrared Galaxy IRAS 19297-0406