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|Observation data (J2000 epoch)|
|Right ascension||22h 32m 47.6s|
|Declination||−60° 33′ 36″|
|See also: Galaxy, List of galaxies|
ISOHDFS 27 is the most massive spiral galaxy known so far. It is approximately 6 billion light years from Earth. It has a mass of 1.04×1012 solar masses (M☉), about four times as massive as the Milky Way.
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