| Identification Data |
| Common Name | Porrima |
| Constellation | Virgo |
| Star Name | 29gam Vir |
| Skymap Number | 12410095 |
| Henry Draper (HD) Number | 110379 |
| Harvard Revised (HR) Number | 4825 |
| SAO Number | 138917 |
| Durchmusterung (DM) Number | BD-00 2601 |
Washington Double Stars (WDS) Number
| 12417-0127
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 400177 |
| Right Ascension (RA) J2000 | 12h 41m 39.642s |
| Declination (Dec) J2000 | -1° 26' 57.750" |
| Position Uncertainty | 0.0116s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.04113 |
| Proper Motion in Dec (J2000) | +0.060767 |
| Radial Velocity | -019.5km s-1 |
| Trigonometric Parallax | +0.08453s |
| Trigonometric Parallax Uncertainty | 0.00118s |
| GCI Unit Vector in X (J2000) | -0.983209 |
| GCI Unit Vector in Y (J2000) | -0.180722 |
| GCI Unit Vector in Z (J2000) | -0.025294 |
| Galactic Longitude | 297.87° |
Galactic Latitude
| 61.33°
|
| Observational Data |
| Observed Visual Magnitude (V) | 2.74 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | |
| Observed B Magnitude | 3.11 |
| Observed B-V Colour | +0.368 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.017 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.4 |
| Observed Photographic Magnitude | 3.9 |
| Morgan Keenan (MK) Spectral Type | F0V |
| One-Dimensional Spectral Class | F0 |
| Position Angle | |
| Year of Observation | 1994. AD |
