Sentence examples for open cluster from inspiring English sources
noun
A more or less irregular star cluster containing tens to thousands of stars
The pleiades are a very beautiful example of an open cluster.
Massive star formation often occurs in groups – such as the open cluster M7.
With your new binoculars, you can also spot the Pleiades, "possibly the best-known open cluster in the northern sky".
Leaf: hairy in axils, on adaxial surfaces; basal in open cluster, 1--2-pinnate-lobed; upper palmate, lobes linear, entire.
We present the results of CCD UBV photometric and spectroscopic observations of the open cluster NGC 225.
The oldest known open cluster, Collinder 261 in the southern constellation of Musca, is 8.9 billion years old.
They have leaves opposite each other on the stem and heads of flowers that are borne along on long flower stalks or together in an open cluster.
We present a detailed spectroscopic study of this open cluster, finding an age of 40 Myr and a sequence of evolved stars.
open cluster Loosely bound collection of tens to hundreds of stars, a few parsecs across, generally found in the plane of the Milky Way.
If there are cepheid variables in the clusters as well, then the distance using the open cluster method can be compared to that obtained from the Cepheid.
The nearest open cluster is the nucleus of the Ursa Major group at a distance of 65 light-years; the farthest clusters are thousands of light-years away.
