NGC 828 is a spiral galaxy in the constellation of Andromeda. Its velocity with respect to the cosmic microwave background is 5200 ± 17 km/s, which corresponds to a Hubble distance of 250.2 ± 17.5 Mly (76.70 ± 5.37 Mpc).[1] Additionally, three non-redshift measurements give a distance of 223.52 ± 7.06 Mly (68.533 ± 2.165 Mpc).[2] It was discovered by German-British astronomer William Herschel on 18 October 1786.[3]

NGC 828 is a LINER galaxy, i.e. it has a type of nucleus that is defined by its spectral line emission which has weakly ionized or neutral atoms, while the spectral line emission from strongly ionized atoms is relatively weak.[1] In addition, NGC 828 is classified as a radio galaxy.[4]

One supernova has been observed in NGC 828: SN 2024lea (type Ib, mag. 19.1) was discovered by the Zwicky Transient Facility on 10 June 2024.[5]

See also

References

  1. ^ a b c d e f g h i j k l "Results for object NGC 0828". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 31 July 2024.
  2. ^ "Distance Results for NGC 828". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 14 December 2024.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 828". Celestial Atlas. Retrieved 14 December 2024.
  4. ^ "NGC 828". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 14 December 2024.
  5. ^ "SN 2024lea". Transient Name Server. IAU. Retrieved 14 December 2024.
Allikas: https://en.wikipedia.org/wiki/NGC_828
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