NGC5681 is a spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . However, two non-redshift measurements give a closer distance of . It was discovered by German astronomer Heinrich d'Arrest on 1 May 1865.
NGC5681 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.
Supernovae Two supernovae have been observed in NGC 5681: SN 2006dt (TypeIa, mag. 16.8) was discovered by the Lick Observatory Supernova Search (LOSS) on 20 July 2006. SN 2026qua (TypeIb, mag. 19.378) was discovered by the Zwicky Transient Facility on 30 June 2026.
See also List of NGC objects (5001–6000)
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