carbon star


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carbon star

[′kär·bən ‚stär]
(astronomy)
Any of a class of stars with an apparently high abundance ratio of carbon to hydrogen; a majority of these are low-temperature red giants of the C class.
References in periodicals archive ?
With Peter Sarre he carried out the first complete study of the silicon dicarbide molecule in stellar spectra, following his discovery of a carbon star (IRAS 12311-3509) with [C.
Using results from the early infrared satellites, Tom found that certain carbon stars invisible at ordinary wavelengths and having anomalous quantities of silicon-rich dust emitting at 9.
0) Dec RT Capricorni Carbon Star 20h17m2 -21[degrees]20 NGC 6908 Nebulosity 20 25 1 -24 48 NGC 6907 Galaxy 20 25 6 -24 49 Asterism Star Group 20 26 7 -24 57 NGC 7099, M 30 Globular Cluster 21 40 4 -23 11 Palomar 12 Globular Cluster 21 46 6 -21 15 NGC 7158 Unknown 21 57 4 -11 36 Object Type Mag Size RT Capricorni Carbon Star 7-11 * NGC 6908 Nebulosity 14 0.
The primary in this pair is a deep red variable carbon star of 7th magnitude average brightness, with a colour index, B-V, of +3.
U Antliae in the far southern skies is a deep red carbon star, varying around a central magnitude of 6.
Skrutskie of the University of Virginia in Charlottesville and Martin Weinberg of the University of Massachusetts zeroed in on carbon stars, the brilliant, final stage of stars that weigh one to four times as much as the sun.
Stars more massive than the sun end their lives as carbon stars, which in our galaxy are a rich source of dust.
And finally, carbon stars are notoriously variable, not just in magnitude but in colour too, and it is probably no more than fortuitous that WZ Cas should happen to have one of the largest numerical values of (B-V) in the database consulted by Mr Ahad.
Decin and her colleagues now plan to extend the observations to other carbon stars.
Otherwise, the orbits of the carbon stars would spread out rather than remain in a circle, Ibata says.
6 magnitude--one of the sky's brightest carbon stars.
Double stars, Cepheid variable stars, Viewing galaxies, Black holes, Main-sequence stars, Globular clusters, Discovery of Proxima, Extra-solar planets, Open star clusters, Sub-giant stars, Nebulae, Yellow-dwarf star, Barred spiral galaxies, Galaxies and time, Close double stars, Coloured double stars, Super galaxy clusters, Mira variable stars, Giant stars, Carbon stars, Observing double stars, Solar type stars, Nicolas Louis de Lacaille, Astrophotography, Light year, Sub-dwarf stars, Venial equinox, Hot Jupiters, Delta-Scuti variable star, Apparent brightness.