NGC 3177 is a spiral galaxy located in the constellation Leo. Its speed relative to the cosmic microwave background is 1,627 ± 22 km/s, which corresponds to a Hubble distance of 24.0 ± 1.7 Mpc (~78.3 million ly). NGC 3177 was discovered by the German-British astronomer William Herschel in 1784.
The luminosity class of NGC 3177 is II and it has a broad HI line. It also contains regions of ionized hydrogen. According to the SIMBAD database, NGC 3177 has an active galactic nucleus.
To date, nine non-redshift measurements yield a distance of 27.722 ± 4.581 Mpc (~90.4 million ly), which is within the distance values of Hubble.
Supernovae
The supernova SN 1947A was discovered in NGC 3177 on March 5, 1947, by Edwin Hubble. The type of this supernova has not been determined.
