· · · ·
Proper NameNone
Bayer Designationj Centauri
Flamsteed NumberNone
HR (BSC)4537
HD102776
ConstellationCentaurus
Right Ascension11h 49m 41s
Declination-63° 47' 18"
Distance710 light years
218 parsecs
MagnitudeApparent: +4.32
Absolute: -2.37
Spectral ClassB3Vne blue main sequence star
Optimum VisibilityMarch / April (Usually visible from southern latitudes)

A blue, fourth-magnitude star in Centaurus, j Centauri belongs to a small segment of Centaurus that runs down westward of Crux, the Southern Cross. The star shines against a dense region of the Milky Way, and is surrounded by nebulae and clusters, most notably the Running Chicken Nebula (C100 to the west of j Centauri), and its associated Lambda Centauri Cluster.

Imagery provided by Aladin sky atlas

These phenomena lie far beyond j Centauri, though the star itself is nonetheless relatively distant from the Sun at an estimated 710 light years. This is a main-sequence star, but nonetheless a much hotter and more luminous such star than the Sun. The spectrum of j Centauri implies that it belongs to the class known as 'Be stars', stars that rotate at an unusually rapid rate, and are commonly surrounded by rings or shells of matter.

j Centauri is the Bayer designation for this star, using a lowercase 'j'. It is not to confused with the binary system J Centauri (with an uppercase 'J'), a quite distinct star that lies much farther to the east across the constellation of Centaurus.

Indexes

Related Entries