- Source: NGC 3689
NGC 3689 is an intermediate spiral galaxy in the constellation of Leo. Its velocity with respect to the cosmic microwave background is 3049 ± 22 km/s, which corresponds to a Hubble distance of 44.97 ± 3.16 Mpc (∼147 million light-years). However, 16 non-redshift measurements give a closer distance of 39.350 ± 2.088 Mpc (∼128 million light-years). The galaxy was discovered by German-British astronomer William Herschel on 6 April 1785.
According to the SIMBAD database, NGC 3689 is a radio galaxy.
The SAGA Astronomical Survey for the search for satellite galaxies orbiting another galaxy confirmed the presence of two satellite galaxies for NGC 3689.
One calcium-rich supernova has been observed in NGC 3689: AT 2024mxe (type Gap, mag. 17.7) was discovered by GOTO on 26 June 2024.
See also
List of NGC objects (3001–4000)
References
External links
Media related to NGC 3689 at Wikimedia Commons
NGC 3689 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images