NGC 561

NGC 561
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension01h 28m 18s
Declination01° 28′ 18″
Redshift0.015758
Heliocentric radial velocity4687 ± 4 km/s
Apparent magnitude (B)14.1
Surface brightness23.44 mag/arcsec2
Characteristics
Type(R)SB(s)a
Other designations
UGC 1048, MCG +06-04-029, PGC 5489

NGC 561 is a barred spiral galaxy located in the constellation Andromeda. Its speed relative to the cosmic microwave background is 4,395 ± 20 km/s, which corresponds to a Hubble distance of 64.8 ± 4.6 Mpc (~211 million ly). NGC 561 was discovered by Prussian astronomer Heinrich d'Arrest in 1862.

The luminosity class of NGC 561 is I and it has a broad HI1 line.[clarification needed]

NGC 561 is part of the NGC 507 group. This vast group includes at least 42 galaxies, 21 of which appear in the NGC catalog and 5 in the IC catalog. Four members of this group are also Markarian galaxies. The brightest of these galaxies is NGC 507 and the largest is NGC 536.

See also

References

  1. 1 2 3 4 5 6 "NGC 561". simbad.cds.unistra.fr. Retrieved 2024-04-15.
  2. ↑ "Results for object NGC 0561 (NGC 561)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2024-11-01.
  3. ↑ "NGC 561 - Spiral Galaxy in Andromeda | TheSkyLive.com". theskylive.com. Retrieved 2024-04-15.
  4. ↑ Astronomy, Go. "NGC 561 | galaxy in Andromeda | NGC List | GO ASTRONOMY". Go-Astronomy.com. Retrieved 2024-04-15.
  5. ↑ "NGC 561 - spiral galaxy with bar. Description NGC 561". kosmoved.ru. Retrieved 2024-04-15.