TT Cygni
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 40m 57.01568s [1] |
| Declination | +32° 37′ 05.7556″ [1] |
| Spectral type | C |
TT Cygni is a carbon star. It is 561 parsecs (1,830 ly) away in Cygnus. It has an apparent magnitude of 7.44.[1] It is called a carbon star because it has a high ratio of carbon to oxygen in its surface layers. The carbon was produced by helium fusion, dredged up from inside the star. A shell of carbon monoxide, about half a light year across, was emitted 6,000 years before the star was as it appears from Earth now.
References
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This variable star–related article is a stub. You can help Wikipedia by expanding it. |
