NGC 828 explained

NGC 828
Constellation Name:Andromeda
Epoch:J2000
Type:Sa? pec[1]
Dist Ly:NaNMpc
Z:0.017846
H Radial V:5350 ± 4 km/s
Appmag V:12.3
Size V:2.5' x 1.6'
Size:~69.77kpc (estimated)

NGC 828 is a spiral galaxy in the constellation of Andromeda. Its velocity with respect to the cosmic microwave background is 5118 ± 17 km/s, which corresponds to a Hubble distance of 75.49 ± 5.29 Mpc (∼246 million light-years). It was discovered by German-British astronomer William Herschel on 18 October 1786.[2]

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. In addition, NGC 828 is classified as a radio galaxy.[3]

One supernova has been observed in NGC 828: SN 2024lea (type Ib, mag. 19.1).[4]

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 828 . 31 July 2024.
  2. https://cseligman.com/text/atlas/ngc47a.htm#4774 Celestial Atlas entry for NGC 4744.
  3. https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ngc+828&submit=SIMBAD+search SIMBAD entry for NGC 828.
  4. https://www.wis-tns.org/object/2024lea Transient Name Server entry for SN 2024lea.