Physical Characteristics
The Jewel Box cluster is one of the youngest known open clusters. It contains the M-type supergiant Kappa Crucis.
The mean radial velocity of the Jewel Box cluster is −17.9 kilometres per second (−11.1 mi/s).
The brightest stars in the Jewel Box cluster are supergiants, and include some of the brightest stars in the Milky Way galaxy.
Calculating its distance is difficult due to the proximity of the Coalsack Nebula, which obscures some of its light.
Read more about this topic: Jewel Box (star Cluster)
Famous quotes containing the word physical:
“Hemingway is great in that alone of living writers he has saturated his work with the memory of physical pleasure, with sunshine and salt water, with food, wine and making love and the remorse which is the shadow of that sun.”
—Cyril Connolly (1903–1974)