NGC 424
| NGC 424 | |
|---|---|
| NGC 424 NGC 424 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Sculptor |
| Right ascension | 01h 11m 27.6390s[1] |
| Declination | −38° 05′ 00.452″[1] |
| Redshift | 0.011764[1] |
| Heliocentric radial velocity | 3,527 km/s[1] |
| Distance | 165.36 ± 24.14 Mly (50.700 ± 7.400 Mpc)[1] |
| Apparent magnitude (V) | 12.9[2] |
| Characteristics | |
| Type | Sa[2] |
| Size | ~134,600 ly (41.26 kpc) (estimated)[1] |
| Apparent size (V) | 2.3′ × 0.8′[2] |
| Other designations | |
| ESO 296- G 004, IRAS 01091-3820, MCG -06-03-026, PGC 4274[1] | |
NGC 424 is a spiral galaxy in the constellation of Sculptor. Its velocity with respect to the cosmic microwave background is 3,303±18 km/s, which corresponds to a Hubble distance of 158.9 ± 11.2 Mly (48.72 ± 3.42 Mpc).[1] Also, two non-redshift measurements give a similar mean distance of 165.36 ± 24.14 Mly (50.700 ± 7.400 Mpc).[3] It was discovered by British astronomer John Herschel on November 30, 1837.[2][4]
NGC 424 is a Seyfert I galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[5]
Supernova
[edit | edit source]One supernova has been observed in NGC 424: SN 2025scw (Type II, mag. 16.924) was discovered by ATLAS on 24 July 2025.[6]
Gallery
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NGC 424 imaged by 2MASS
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NGC 424 imaged by DSS
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NGC 424 imaged by legacy surveys, showing that this galaxy has a tidal structure
See also
[edit | edit source]References
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External links
[edit | edit source]- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
