101 Virginis
From Infogalactic: the planetary knowledge core
 Location of CY Boötis (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 17m 28.4519s[1] |
| Declination | +15° 15′ 48.167″[1] |
| Apparent magnitude (V) | 5.84[2] (5.74-5.9[3]) |
| Characteristics | |
| Spectral type | M3IIIa[2] |
| B−V color index | 1.678[2] |
| Variable type | SRb[3] |
| Astrometry | |
| Radial velocity (Rv) | -11.30[4] km/s |
| Proper motion (μ) | RA: 14.27[1] mas/yr Dec.: 8.80[1] mas/yr |
| Parallax (π) | 4.28 ± 0.41[1] mas |
| Distance | 760 ± 70 ly (230 ± 20 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
101 Virginis is a red giant variable star in the Boötes constellation. It was originally catalogued as 101 Virginis by Flamsteed due to an error in the position.[5][6] When it was confirmed as a variable star, it was actually within the border of the constellation Bootes and given the name CY Boötis.[3]
The variability is not strongly defined but a primary period of 23 days and a secondary period of 340 days have been reported.[7]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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External links
- VizieR: HR 5352
- Aladin: Image 101 Virginis
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