XX Trianguli
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Triangulum |
| Right ascension | 02h 03m 47.11354s[1] |
| Declination | +35° 35′ 28.6597″[1] |
| Apparent magnitude (V) | 8.1 – 8.7[2] |
| Characteristics | |
| Spectral type | K0 III[1] |
| U−B color index | +0.78[2] |
| Variable type | RS Canum Venaticorum variable[2] |
| Astrometry | |
| Radial velocity (Rv) | -26.35 km/s[1] km/s |
| Parallax (π) | 6.24±1.02[1] mas |
| Distance | 910–1,500[2] ly (280–460[2] pc) |
| Details | |
| Radius | 10.7[2] R☉ |
| Temperature | 4820[2] K |
| Rotation | 24.3±0.02 days[2] |
| Details | |
| Radius | 10.7[2] R☉ |
| Temperature | 4820[2] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
XX Trianguli is a variable star in the constellation Triangulum. It is classified as a RS Canum Venaticorum variable orange giant with spectral type K0III.[1][2] XX Trianguli is notable for having a huge starspot larger than the diameter of the Sun, discovered using Doppler imaging.[3]
References
- ^ a b c d e f g "SIMBAD". Retrieved August 16, 2015.
- ^ a b c d e f g h i j k K. G., Strassmeier; K., Olah (June 1992). "On the starspot temperature of HD 12545" (Astronomy and Astrophysics (ISSN 0004-6361) Volume 259 No. 2). SAO/NASA Astrophysics Data System: 595–599. Retrieved August 16, 2015.
{{cite journal}}: Cite journal requires|journal=(help) - ^ "A Giant Starspot on HD 12545". Astronomy Picture of the Day. NASA. Retrieved August 16, 2015.
| This article, XX Trianguli, has recently been created via the Articles for creation process. Please check to see if the reviewer has accidentally left this template after accepting the draft and take appropriate action as necessary.
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