Identification Data |
Common Name | |
Constellation | Puppis |
Star Name | tau Pup |
Skymap Number | 6490240 |
Henry Draper (HD) Number | 50310 |
Harvard Revised (HR) Number | 2553 |
SAO Number | 234735 |
Durchmusterung (DM) Number | CD-50 2415 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 335509 |
Right Ascension (RA) J2000 | 6h 49m 56.168s |
Declination (Dec) J2000 | -50° 36' 52.415" |
Position Uncertainty | 0.0099s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00360 |
Proper Motion in Dec (J2000) | -0.065966 |
Radial Velocity | +036.4km s-1 |
Trigonometric Parallax | +0.01785s |
Trigonometric Parallax Uncertainty | 0.00049s |
GCI Unit Vector in X (J2000) | -0.137166 |
GCI Unit Vector in Y (J2000) | 0.619531 |
GCI Unit Vector in Z (J2000) | -0.772895 |
Galactic Longitude | 260.16° |
Galactic Latitude
| -20.86°
|
Observational Data |
Observed Visual Magnitude (V) | 2.94 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.15 |
Observed B-V Colour | +1.206 |
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 | 2.8 |
Observed Photographic Magnitude | 3.8 |
Morgan Keenan (MK) Spectral Type | K1III |
One-Dimensional Spectral Class | K0 |
Position Angle | |
Year of Observation | AD |