Identification Data |
Common Name | |
Constellation | Virgo |
Star Name | 74 Vir |
Skymap Number | 13310144 |
Henry Draper (HD) Number | 117675 |
Harvard Revised (HR) Number | 5095 |
SAO Number | 139390 |
Durchmusterung (DM) Number | SD-05 3714 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 196601 |
Right Ascension (RA) J2000 | 13h 31m 57.885s |
Declination (Dec) J2000 | -6° 15' 20.938" |
Position Uncertainty | 0.0070s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00696 |
Proper Motion in Dec (J2000) | -0.043466 |
Radial Velocity | +018.2km s-1 |
Trigonometric Parallax | +0.00755s |
Trigonometric Parallax Uncertainty | 0.00066s |
GCI Unit Vector in X (J2000) | -0.915083 |
GCI Unit Vector in Y (J2000) | -0.388264 |
GCI Unit Vector in Z (J2000) | -0.108968 |
Galactic Longitude | 320.79° |
Galactic Latitude
| 55.21°
|
Observational Data |
Observed Visual Magnitude (V) | 4.70 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.30 |
Observed B-V Colour | +1.602 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.007 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.1 |
Observed Photographic Magnitude | 6.2 |
Morgan Keenan (MK) Spectral Type | M2.5III |
One-Dimensional Spectral Class | M0 |
Position Angle | |
Year of Observation | AD |