| Identification Data |
| Common Name | |
| Constellation | Puppis |
| Star Name | 21 Pup |
| Skymap Number | 8170093 |
| Henry Draper (HD) Number | 69665 |
| Harvard Revised (HR) Number | 3257 |
| SAO Number | 154076 |
| Durchmusterung (DM) Number | SD-15 2362 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 219914 |
| Right Ascension (RA) J2000 | 8h 17m 23.132s |
| Declination (Dec) J2000 | -16° 17' 6.401" |
| Position Uncertainty | 0.0075s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00082 |
| Proper Motion in Dec (J2000) | -0.007766 |
| Radial Velocity | 0.km s-1 |
| Trigonometric Parallax | +0.00380s |
| Trigonometric Parallax Uncertainty | 0.00078s |
| GCI Unit Vector in X (J2000) | -0.541558 |
| GCI Unit Vector in Y (J2000) | 0.792516 |
| GCI Unit Vector in Z (J2000) | -0.280417 |
| Galactic Longitude | 237.59° |
Galactic Latitude
| 10.66°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.31 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
| Observed B Magnitude | 6.36 |
| Observed B-V Colour | +0.053 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.006 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.7 |
| Observed Photographic Magnitude | 6.3 |
| Morgan Keenan (MK) Spectral Type | A2V |
| One-Dimensional Spectral Class | A0 |
| Position Angle | |
| Year of Observation | AD |
