Identification Data |
Common Name | |
Constellation | Tucana |
Star Name | bet1Tuc |
Skymap Number | 310184 |
Henry Draper (HD) Number | 2884 |
Harvard Revised (HR) Number | 126 |
SAO Number | 248201 |
Durchmusterung (DM) Number | CP-63 50 |
Washington Double Stars (WDS) Number
| 00315-6257
|
Positional Data |
Position and Proper Motion (PPM) Number | 351869 |
Right Ascension (RA) J2000 | 0h 31m 32.666s |
Declination (Dec) J2000 | -62° 57' 29.584" |
Position Uncertainty | 0.0055s |
Proper Motion in RA (J2000)/cos(Dec) | +0.01210 |
Proper Motion in Dec (J2000) | -0.054466 |
Radial Velocity | +014.0km s-1 |
Trigonometric Parallax | +0.02335s |
Trigonometric Parallax Uncertainty | 0.00052s |
GCI Unit Vector in X (J2000) | 0.450340 |
GCI Unit Vector in Y (J2000) | 0.062379 |
GCI Unit Vector in Z (J2000) | -0.890675 |
Galactic Longitude | 306.78° |
Galactic Latitude
| -54.02°
|
Observational Data |
Observed Visual Magnitude (V) | 4.34 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 4.29 |
Observed B-V Colour | -0.047 |
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 | 4.4 |
Observed Photographic Magnitude | 4.5 |
Morgan Keenan (MK) Spectral Type | B9V |
One-Dimensional Spectral Class | B9 |
Position Angle | 151 |
Year of Observation | 1932. AD |