Identification Data |
Common Name | Angetenar |
Constellation | Eridanus |
Star Name | 2tau2Eri |
Skymap Number | 2510005 |
Henry Draper (HD) Number | 17824 |
Harvard Revised (HR) Number | 850 |
SAO Number | 168094 |
Durchmusterung (DM) Number | SD-21 509 |
Washington Double Stars (WDS) Number
| 02510-2100
|
Positional Data |
Position and Proper Motion (PPM) Number | 245481 |
Right Ascension (RA) J2000 | 2h 51m 2.321s |
Declination (Dec) J2000 | -21° 0' 14.470" |
Position Uncertainty | 0.0061s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00279 |
Proper Motion in Dec (J2000) | -0.016666 |
Radial Velocity | -008.6km s-1 |
Trigonometric Parallax | +0.01785s |
Trigonometric Parallax Uncertainty | 0.00069s |
GCI Unit Vector in X (J2000) | 0.685424 |
GCI Unit Vector in Y (J2000) | 0.633814 |
GCI Unit Vector in Z (J2000) | -0.358433 |
Galactic Longitude | 206.79° |
Galactic Latitude
| -62.09°
|
Observational Data |
Observed Visual Magnitude (V) | 4.77 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.68 |
Observed B-V Colour | +0.909 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.8 |
Observed Photographic Magnitude | 5.8 |
Morgan Keenan (MK) Spectral Type | K0III |
One-Dimensional Spectral Class | K0 |
Position Angle | 129 |
Year of Observation | 1904. AD |