Jump to content

Collinder 135

From Wikipedia, the free encyclopedia
Collinder 135
Collinder 135
Observation data (2000.0 epoch)
Right ascension07h 08m [1]
Declination−37° 10′[1]
Distance1,040.5 ly (319 pc [1])
Apparent magnitude (V)2.1[1]
Apparent dimensions (V)50'
Physical characteristics
Other designationsPi Puppis Cluster, Cr 135, C 0715-367
Associations
ConstellationPuppis
See also: Open cluster, List of open clusters

Collinder 135, known sometimes as the Pi Puppis Cluster, is an open cluster in Puppis constellation.

It consists of six stars brighter than 6th magnitude, and a widespread population of fainter stars.[2] It lies in the southern celestial hemisphere near a rich star field. The main component is the star Pi Puppis, which gives to the cluster its common name; it is an orange supergiant with a visual magnitude of 2.71. Two of the 5th magnitude stars are all variables: NV Puppis is a Gamma Cassiopeiae variable, while NW Puppis is a Beta Cephei variable.

References

[edit]
  1. ^ a b c d "Cl Collinder 135". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2011-08-15.
  2. ^ H. Baumgardt (1998). "The Nature of some doubtful Open Clusters as revealed by Hipparcos". Astronomy and Astrophysics. 340: 402. Bibcode:1998A&A...340..402B.
[edit]