NGC 6984

NGC 6984 is a barred spiral galaxy located 180 million light years away in the constellation Indus. It is a Type II Seyfert galaxy, a type of active galactic nucleus. It is situated south of the celestial equator, and is visible with the help of a telescope having an aperture of 10 inches or more.
It was discovered on 8 July 1834 by British astronomer John Herschel.

Supernovae

NGC 6984 is notable for having been the host of two supernovae which occurred in the same location, about 1 year apart: SN 2012im, first known as SNhunt142, and SN2013ek. Hubble Space Telescope 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."