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| Catalogue and alternative designations |
M33, NGC 598, Triangulum galaxy |
| Type | Galaxy |
| Position | 01 33.9, +30 39 |
| Constellation | Triangulum |
| Camera and Telescope | QSI 583 WSG, 20cm Maksutov Newtonian courtesy Dean Salman |
| Focal Ratio | F4 |
| Exposure Details | LRGB with Astrodon series 2 filters. L=240m, R=G=B=90m |
| Description | M33
is a large face on spiral galaxy
(80' x 50') of low surface
brightness discovered by Messier
in 1764. It needs a dark
site to be best seen but there
is much intricate detail and
individual objects visible
within. The best known of
these objects is the giant
emission nebula NGC 604 which is
of similar morphology to the
Tarantula nebula (NGC 2070) but
much further away. The
estimated distance is about 3
million light years.
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