1.1 KiB
name | created_by | created_date | updated_by | updated_date |
---|---|---|---|---|
Triangulum | skybber | 2021-07-25 09:01:56.570397 | skybber | 2021-07-25 09:01:56.570718 |
A very small constellation of the northern sky, whose name corresponds to the image of an almost isosceles, acute-angled triangle formed by the three brightest stars of 3rd magnitude. The constellation is located in a nice setting of several striking star clusters. To the northeast lies the "head of Medusa" (β, π, ρ, ω Perseus), to the south is the cluster of stars of the constellation Aries (α, β, γ Arietis), and to the southeast the obsolete, now defunct constellation of the Northern Fly, formed by the stars 33, 35, 39, and 41 Arietis. The Triangle's exhibit is the spiral galaxy M33, the third largest of the Local Group after M31 and our Galaxy. However, because it is large and has a low areal brightness, it is not the best to observe: It is followed by only a handful of colourful binaries and a fair number of faint galaxies, of which, however, only a very small fraction can be detected with an ordinary newton.