Theta Aquarii
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| Observation data Epoch J2000 Equinox J2000 |
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|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 16m 50.0364s |
| Declination | -07° 46′ 59.845″ |
| Apparent magnitude (V) | 4.175 |
| Characteristics | |
| Spectral type | G8III |
| U-B color index | 0.81 |
| B-V color index | 0.98 |
| Astrometry | |
| Radial velocity (Rv) | -14.7 km/s |
| Proper motion (μ) | RA: 118.95 mas/yr Dec.: -21.91 mas/yr |
| Parallax (π) | 17.04 ± 0.74 mas |
| Distance | 191 ± 8 ly (59 ± 3 pc) |
| Absolute magnitude (MV) | 5.144 |
| Details | |
| Mass | 1,1 M☉ |
| Radius | 1,1 R☉ |
| Luminosity | 1,2 L☉ |
| Temperature | 5,000–6,000 K |
| Metallicity | ? |
| Rotation | < 0,008981 Year |
| Age | ? years |
| Other designations | |
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Ancha, 43 Aquarii, HD 211391, N30 4907, TD1 28951, HIC 110003, PLX 5394, TYC 5803-1996-1, BD-08° 5845, HIP 110003, PMC 90-93 589, UBV M 26281, FK5 840, HR 8499, PPM 206179, UBV 19063, GC 31152, IRAS 22142-0801, ROT 3245, uvby98 100211391, GCRV 14011, IRC -10578, SACS 485, YZ 98 7981, JP11 3468, SAO 145991, GSC 05803-01996, 2MASS J22165002-0747001.
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| Database references | |
| SIMBAD | data |
Theta Aquarii (θ Aqr / θ Aquarii) is a star in the constellation Aquarius. It has the traditional name Ancha, Latin for "the haunch".
Ancha belongs to the spectral class G8 and has an magnitude of +4.17. Ancha is 191 light years from Earth. Since it is near the ecliptic it can be occulted by the Moon, or very rarely by planets.
[edit] Location
[edit] Name
- Ancha is a family surname in Andhra Pradesh,a state in south India.
[edit] References
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