Collinder 135
Open cluster in Puppis
title: "Collinder 135" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["open-clusters", "puppis"] description: "Open cluster in Puppis" topic_path: "general/open-clusters" source: "https://en.wikipedia.org/wiki/Collinder_135" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Open cluster in Puppis ::
::data[format=table title="Infobox open cluster"]
| Field | Value |
|---|---|
| name | Collinder 135 |
| image | Pi Puppis Cluster.PNG |
| caption | Simulated image of the Pi Puppis Cluster |
| epoch | 2000.0 |
| constellation | Puppis |
| ra | |
| dec | |
| appmag_v | 2.1 |
| size_v | 50' |
| dist_ly | 975 ± 36 ly |
| dist_pc | 299 ± 11 pc |
| age | 36 ± 5 Myr |
| names | Pi Puppis Cluster, Cr 135, C 0715-367 |
| :: |
| name = Collinder 135 | image = Pi Puppis Cluster.PNG | caption= Simulated image of the Pi Puppis Cluster | epoch = 2000.0 | constellation = Puppis | ra = | dec = | appmag_v = 2.1 | size_v = 50' | dist_ly = 975 ± 36 ly | dist_pc = 299 ± 11 pc | notes = | age = 36 ± 5 Myr
| names = Pi Puppis Cluster, Cr 135, C 0715-367
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. 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
References
- "Cl Collinder 135".
- (2025). "Close Binary Open Cluster Systems: A Gaia DR3 Perspective on Alessi 36 and Collinder 135". Bitlis Eren Üniversitesi Fen Bilimleri Dergisi.
- H. Baumgardt. (1998). "The Nature of some doubtful Open Clusters as revealed by Hipparcos". Astronomy and Astrophysics.
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