Lambda Orionis Cluster
The Lambda Orionis Cluster (also known as the Collinder 69) is an open star cluster located north-west of the star Betelgeuse in the constellation of Orion. It is about five million years old and roughly 1,300 ly (400 pc) away from the Sun. Included within the cluster is a double star named Meissa. With the rest of Orion, it is visible from the middle of August in the morning sky, to late April before Orion becomes too close to the Sun to be seen well. It can be seen from both the northern hemisphere and the southern hemisphere.
| Lambda Orionis Cluster | |
|---|---|
| Observation data (J2000 epoch) | |
| Right ascension | 05h 35m 06s |
| Declination | +09° 56.0′ |
| Distance | 1,300 ly (400 pc) |
| Apparent magnitude (V) | 2.8 |
| Physical characteristics | |
| Estimated age | 5.0 Myr |
| Other designations | Lambda Ori Association, Collinder 69 |
| Associations | |
| Constellation | Orion |
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