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

Collinder 135
Observation data (2000.0 epoch)
Constellation	Puppis
Right ascension	07h 08m [1]
Declination	−37° 10′[1]
Distance	1,040.5 ly (319 pc [1])
Apparent magnitude (V)	2.1[1]
Apparent dimensions (V)	50'
Physical characteristics
Other designations	Pi Puppis Cluster, Cr 135, C 0715-367
See also: Open cluster, List of open clusters

It consists of four stars visible also to naked eye, and a widespread population of 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. The 5th magnitude stars are all variables: one (NV Puppis) is a Gamma Cassiopeiae variable, and the other (NW Puppis) is a Beta Cephei variable.

References

External links

• Media related to Collinder 135 at Wikimedia Commons
• Observing Cr 135

На других языках

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- [en] Collinder 135

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[es] Collinder 135

Collinder 135, conocido también como cúmulo de Pi Puppis, es un cúmulo abierto en la constelación de Puppis, la popa del Argo Navis. Se encuentra a 840 años luz de distancia.

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[ru] Collinder 135

Collinder 135 (Скопление Пи Кормы) — рассеянное звёздное скопление в созвездии Кормы.

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