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 |