| NGC 5722 | |
|---|---|
 NGC 5722 imaged bySDSS | |
| Observation data (J2000epoch) | |
| Constellation | Boötes |
| Right ascension | 14h 38m 54.4118s[1] |
| Declination | +46° 39′ 56.299″[1] |
| Redshift | 0.035862±0.00000884[1] |
| Heliocentric radial velocity | 10,751±3 km/s[1] |
| Distance | 523.2 ± 36.6 Mly (160.40 ± 11.23 Mpc)[1] |
| Apparent magnitude (V) | 15.0g[1] |
| Characteristics | |
| Size | ~191,700 ly (58.79 kpc) (estimated)[1] |
| Apparent size (V) | 0.76′ × 0.64′[1] |
| Other designations | |
| 2MASX J14385438+4639562,MCG +08-27-014,PGC 52355,CGCG 248-016 NED01[1] | |
NGC 5722 is a largelenticular galaxy in theconstellation ofBoötes. Its velocity with respect to thecosmic microwave background is10,875±9 km/s, which corresponds to aHubble distance of 523.2 ± 36.6 Mly (160.40 ± 11.23 Mpc).[1] Additionally, onenon-redshift measurement gives a slightly farther distance of 531.63 Mly (163.000 Mpc).[2] It was discovered by British astronomerJohn Herschel on 26 April 1830.[3]
NGC 5722 is aSeyfert II galaxy, i.e. it has aquasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]
NGC 5722 is a member of acompact galaxy group catalogued asMLCG 1495. The other galaxies in the group areNGC 5721,NGC 5723, andSDSS J143853.22+464152.1.[6][7]
Media related toNGC 5722 at Wikimedia Commons
