Displaying items by tag: Carbon Star

Wednesday, 15 June 2022 16:02

KW Sagittarii

A very large red giant star located withing the constellation bounds of Sagittarius. If it was located where our Sun was, it would extend out past Mars. A pulsating long period variable star with a long period of around 670 days. It varies in magnitude from 8.5 to 11.0 over its long period, with a smaller magnitude pulsation period of around a third of a day. There are no reliable distance measurements other that its far enough away that parallax measurements are currently unreliable.  It is the reddish brighter star located near the center. A rich star field for a back drop as we look towards the center of our Milky Way galaxy.

Published in Stars
Wednesday, 07 April 2021 15:05

V Coronae Borealis

V Crb is a red giant Mira type carbon star located in Corona Borealis. 

Published in Stars
Friday, 02 April 2021 11:16

SS Vir

SS Vir is a Mira class variable star with a period of 361 days. It is also classified as a carbon star . Carbon stars are red giants that contain an excess of carbon in their upper layers forming sooty layer, scattering the blue/green light, giving them a deep reddish color.

Published in Stars
Saturday, 12 May 2018 00:34

T Cancri - Carbon Star

T Cancri is a red giant variable that gets it's deep reddish color from carbon that is dredged up from its core that forms a fine soot layer that scatters away the blue and green light, much like a sunset does. T Cancri varies in brightness from a magnitude 7.6 down to 10.5 in the green light band over a period of around 482 days. It was around magnitude 8.6 when this image was taken.

Published in Stars
Friday, 09 February 2018 15:07

La Superba

Other names for La Superba are Y CVn, and HD 110914. La Superba is a late stage red giant star, with a mass of three times that of our Sun, but with its outer layers extending out to a radius of 2.2 Astronomical units (1 AU is the distance of the Earth to the Sun). So if La Superba was at the same location as our Sun, it's outer layers would extend out to Mars. Like many red giants, it is also a variable star changing in brightness by around 1 magnitude over a 160 day cycle.

Published in Stars