NGC 1132 and nearby small galaxies are known as a "fossil group" that resulted from the merger of a group of galaxies.[4] It is the prototype example of the class of fossil galaxy groups.[7] The identification as a fossil group was made in 1999.[8] This group contains an enormous amount of dark matter and a large amount of hot gas that emits X-ray radiation.[9] The galaxy is surrounded by thousands of globular star clusters.[10]
One supernova has been observed in NGC 1132: SN 2024pbe (type Ia, mag. 17.8).[11]
^ abCutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
^ abcde"NGC 1132". Simbad. Université de Strasbourg/CNRS. Retrieved September 24, 2020.