Triangulum Galaxy
(M33, Triangulum, Messier 33, NGC 598)
(small spiral galaxy in the Local Group)
The Triangulum Galaxy (M33, Messier 33, or NGC 598)
is a nearby spiral galaxy which is about 2.7 million light-years away.
It is one of the most distant objects visible
by the naked eye, with an apparent magnitude of 5.72.
It is estimated to have 40 billion stars,
is 60,000 light-years across and is
the third largest galaxy of the Local Group
after Andromeda (M31) and the Milky Way,
the three of which are also the only
(traditional) spiral galaxies of the Local Group.
There is some suspicion that it could be a satellite galaxy of M31.
Though it is probably a little further than M31, being less populated,
its individual stars can be easier to observe.
Characteristics:
(galaxy,Local Group,spiral)
Further reading:
https://en.wikipedia.org/wiki/Messier_33
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=M33
https://www.nasa.gov/feature/goddard/2019/messier-33-the-triangulum-galaxy
http://www.messier.seds.org/m/m033.html
https://www.messier-objects.com/messier-33-triangulum-galaxy/
Redshift | Parsecs /Distance | Lightyears /Lookback Years | | |
.0002 | 840kpc | 2.73Mly | | Triangulum Galaxy |
|
Coordinates: | M33 J013350.02+303936.7 |
|
Prefix | Example | | |
M33 | M33-013406.63 | M33 star | |
|
Referenced by pages:
constellation
galaxy classification
galaxy subgroup
Large Magellanic Cloud (LMC)
Local Group (LG)
Local Group Galaxy Survey (LGGS)
luminous blue variable (LBV)
Messier Catalog (M)
PAndAS
PHAT
rare designator prefixes
spiral galaxy
Index