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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.
The SIMBAD database lists NGC 3689 as 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.
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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.
The SIMBAD database lists NGC 3689 as 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.