Diffuse nebula | |
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![]() A image of NGC 588 | |
Observation data: epoch | |
Subtype | H II [1] |
Right ascension | 1h 32.7m 00s [2] |
Declination | +30° 40′ 00″ [2] |
Distance | z=-0.000580 [1] |
Apparent dimensions (V) | 0.65 arc minutes? [3] |
Constellation | Triangulum |
Designations | IRAS 01299+3023 [4] |
NGC 588 is a prominent, giant H II ionized [5] diffuse nebula located in the outskirts of the galaxy Messier 33's spiral arms, within the Triangulum constellation. [6] [4] The nebula has two Wolf-Rayet stars, NGC 588-UIT 008 and NGC 588-MC3 and a fairly large population of main sequence stars of 2 to 20 solar masses. The more massive stars in the nebula have a mass of around 40 solar masses. NGC 588 is 4.2 million years old and has a mass of 2300 solar masses. [7]
NGC 588 and NGC 592 (another nebula in the Triangulum galaxy) are both very prominent stellar nurseries in their regions. [7]
It was discovered October 2, 1861, by the German-Danish astronomer Heinrich d'Arrest. [8]