Astronomy:NGC 1716

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NGC 1716
NGC 1716 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationLepus
Right ascension 04h 58m 13.3221s[1]
Declination−20° 21′ 49.347″[1]
Redshift0.022742±0.0000870[1]
Helio radial velocity6,818±26 km/s[1]
Distance327.7 ± 23.0 Mly (100.48 ± 7.05 Mpc)[1]
Apparent magnitude (V)13.90[1]
Characteristics
TypeSAB(s)bc pec[1]
Size~174,500 ly (53.49 kpc) (estimated)[1]
Apparent size (V)1.4′ × 1.1′[1]
Other designations
ESO 552- G 034, IRAS 04560-2026, MCG-03-13-038, PGC 16434[1]

NGC 1716 is a barred spiral galaxy in the constellation of Lepus. Its velocity with respect to the cosmic microwave background is 6,813±26 km/s, which corresponds to a Hubble distance of 327.7 ± 23.0 Mly (100.48 ± 7.05 Mpc).[1] It was discovered by British astronomer John Herschel on 11 December 1835.[2][3]

NGC 1716 is a Seyfert II 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.[4]

Supernovae

Two supernovae have been observed in NGC 1716.

  • SN 2020sgg (Type Ia, mag. 18.349) was discovered by ATLAS on 30 August 2020.[5]
  • SN 2024qux (Type II, mag. 18.885) was discovered by ATLAS on 1 August 2024.[6]

See also

References

Coordinates: Sky map 04h 58m 13.3221s, −20° 21′ 49.347″