Andromeda VIII

Not to be confused with 8 Andromedae.

Andromeda VIII
Observation data (J2000 epoch)
Constellation	Andromeda
Right ascension	00h 42m 06.0s [1]
Declination	+40° 37′ 00″ [1]
Distance	2.7 Mly (0.83 Mpc)
Apparent magnitude  (V)	9.1
Absolute magnitude  (V)	-15.6
Characteristics
Type	dSph
Apparent size  (V)	45 × 10 arcmin
Notable features	satellite galaxy of the Andromeda Galaxy
Other designations
And VIII, PGC 5056928

Andromeda VIII (And VIII / 8) is a galaxy discovered in August 2003. It is a companion galaxy to the Andromeda Galaxy, M31, and evaded detection for so long due to its diffuse nature. The galaxy was finally discovered by measuring the redshifts of stars in front of Andromeda, which proved to have different velocities than M31 and hence were part of a different galaxy.^{[ citation needed ]}

As of at least 2006, the actuality of And VIII as a galaxy has not yet been firmly established (Merrett et al. 2006). ^[2]

See also

• List of Andromeda's satellite galaxies

References

1. "NAME Andromeda VIII". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 17 March 2018.
2. Merrett, H. R.; Merrifield, M. R.; Douglas, N. G.; Kuijken, K.; Romanowsky, A. J.; Napolitano, N. R.; Arnaboldi, M.; Capaccioli, M.; et al. (June 2006), "A deep kinematic survey of planetary nebulae in the Andromeda galaxy using the Planetary Nebula Spectrograph", Monthly Notices of the Royal Astronomical Society , 369 (1): 120–142, arXiv: astro-ph/0603125 , Bibcode:2006MNRAS.369..120M, doi: 10.1111/j.1365-2966.2006.10268.x , S2CID   34921318

External links

• SEDS Webpage for Andromeda VIII