NGC 6984 taken by the Hubble Space Telescope
|Observation data (J2000 epoch)|
|Right ascension||20h 57m 53.987s|
|Declination||−51° 52′ 15.13″|
|Helio radial velocity||4577 km/s|
|Distance||180 million ly|
|Apparent magnitude (V)||12.65|
|Apparent magnitude (B)||13.19|
|Apparent size (V)||1.403 x 1.038 arcmin|
|ESO-LV 235-0200, 2MASX J20575398-5152151, [CHM2007] LDC 1431 J205753.98-5152151, AM 2054-520, IRAS 20543-5203, PSCz Q20543-5203 [SLK2004] 1671, APMBGC 235+046+104, IRAS F20543-5203, QDOT B2054196-520349, 6dFGS gJ205754.0-515215, ISOSS J20578-5152, SGC 205419-5203.8, ESO 235-20, LEDA 65798, [CHM2007] HDC 1131 J205753.98-5152151|
It is known for having been the host of two recent supernovae: one in 2012 first known as SNhunt142 (later designated SN 2012im), and one in 2013 known as SN 2013ek. The first was a Type Ic and the second was a Type Ib/c. HST observations were initiated by Dr. Dan Milisavljevic. NASA's press release about SN 2013ek said:
"It is so close to where SN 2012im was spotted that the two events are thought to be linked; the chance of two completely independent supernovae so close together and of the same class exploding within one year of one another is a very unlikely event. It was initially suggested that SN 2013ek may in fact be SN 2012im flaring up again, but further observations support the idea that they are separate supernovae — although they may be closely related in some as-yet-unknown way."
- "Search Results for NGC 6984". Astronomical Database. SIMBAD. Retrieved 5 November 2013.
- "Stellar explosions in NGC 6984". ESA/Hubble Picture of the Week. Retrieved 5 November 2013.
- Hubble Catches Stellar Explosions in NGC 6984, NASA, 13 November 2013, archived from the original on 21 November 2013
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