| NGC 3177 | |
|---|---|
 NGC 3177, as imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Leo |
| Right ascension | 10h 16m 33s |
| Declination | +21° 07’ 23” |
| Apparent magnitude (V) | 11.6[1] |
| Apparent magnitude (B) | 12.8 |
| Surface brightness | 22.34 mag/arcsec^2 |
| Characteristics | |
| Type | SA(rs)b [1] |
| Apparent size (V) | 1.6′ × 1.3′[1] |
| Other designations | |
| UGC 05544, MRK 9018, CGCG 123-032, MCG +04-24-023, IRAS 10138+2122, PGC 030010 | |
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).[2] NGC 3177 was discovered by the German-British astronomer William Herschel in 1784.[3]
The luminosity class of NGC 3177 is II and it has a broad HI line. It also contains regions of ionized hydrogen.[2] According to the SIMBAD database, NGC 3177 has an active galactic nucleus.[4]
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.[1]
- ^ a b c d "NED Query Results for NGC 3177". ned.ipac.caltech.edu. Retrieved 2024-07-22.
- ^ a b "By Name | NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2024-07-22.
- ^ "New General Catalog Objects: NGC 3150 - 3199". cseligman.com. Retrieved 2024-07-22.
- ^ "NGC 3177". simbad.u-strasbg.fr. Retrieved 2024-07-22.