| NGC 5394 | |
|---|---|
 | |
| Observation data (J2000epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 13h 58m 33s |
| Declination | +37° 27′ 12″ |
| Redshift | 0.011501 |
| Heliocentric radial velocity | 3,448km/s |
| Distance | 175Mly (53.67Mpc) |
| Apparent magnitude (B) | 13.7 |
| Absolute magnitude (V) | 13.12 |
| Surface brightness | 23.78 mag/arcsec^2 |
| Characteristics | |
| Type | SBb |
| Size | 96,900ly (29.7kpc estimated) |
| Apparent size (V) | 1.9' x 1.3' |
| Other designations | |
| PGC 49739,UGC 8898, VV 48b,Arp 84,IRAS 13564+3741,MCG +06-31-033,CGCG 191-024 | |
NGC 5394 is abarred spiral galaxy located in theconstellation Canes Venatici. Its speed relative to thecosmic microwave background is 3,639 ± 14 km/s, which corresponds to aHubble distance of 53.7 ± 3.8 Mpc (~175 millionly).[1] NGC 5394 was discovered by German-BritishastronomerWilliam Herschel in 1787.
Theluminosity class of NGC 5394 is II and it has a broad HI line. It also contains regions of ionized hydrogen. It is also aLuminous Infrared Galaxy (LIRG).[1]
To date, one non-redshift-based measurement gives a distance of approximately 32,900 Mpc (~107 million ly).[2] This value is far outside the Hubble distance values. Note that it is with the average value of independent measurements, when they exist, that theNASA/IPAC database calculates the diameter of a galaxy.
Onesupernova has been observed in NGC 5394: SN 2020aaxs (type Ib, mag. 17).[3]
NGC 5394 andNGC 5395 are a pair ofgravitationally interacting galaxies that appear in Halton Arp'sAtlas of Peculiar Galaxies under the designation Arp 84.[4] Arp noted that NGC 5495 is a spiral with a high surface luminosity companion at the end of one of its arms.[4]
According to A.M. Garcia, NGC 5394 is part of a group of galaxies that has at least five members, the NGC 5395 group. The other galaxies areNGC 5341,NGC 5351,NGC 5395 andUGC 8806.[5]
