Messier 109

Messier 109[1]
Messier 109, as imaged during the Advanced Observing Program
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension11h 57m 36.0s[2]
Declination+53° 22′ 28″[2]
Redshift0.003496±0.000004[2]
Heliocentric radial velocity1048±1 km/s[2]
Galactocentric velocity1121±3 km/s[2]
Distance67.2 ± 23.2 Mly (20.6 ± 7.1 Mpc)
Apparent magnitude (V)9.8[3]
Characteristics
TypeSB(rs)bc,[2] LINER/HII[2]
Apparent size (V)7.6 × 4.7 moa[2]
Other designations
IRAS 11549+5339, NGC 3992, UGC 6937, MCG +09-20-044, PGC 37617[2]
References: SIMBAD: Search M109

Messier 109 (also known as NGC 3992 or the Vacuum Cleaner Galaxy) is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar approximately 67.2 ± 23 million light-years[4] away in the northern constellation Ursa Major. M109 can be seen south-east of the star Phecda (γ UMa, Gamma Ursa Majoris).

  1. ^ Cite error: The named reference AnA was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i Cite error: The named reference ned was invoked but never defined (see the help page).
  3. ^ "Messier 109". SEDS Messier Catalog. Retrieved 30 April 2022.
  4. ^ Cite error: The named reference ned-dist was invoked but never defined (see the help page).