| 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 |
Printer Version