Identification Data |
Common Name | |
Constellation | Virgo |
Star Name | 87 Vir |
Skymap Number | 13470074 |
Henry Draper (HD) Number | 120052 |
Harvard Revised (HR) Number | 5181 |
SAO Number | 158165 |
Durchmusterung (DM) Number | SD-17 3932 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 227850 |
Right Ascension (RA) J2000 | 13h 47m 25.391s |
Declination (Dec) J2000 | -17° 51' 35.420" |
Position Uncertainty | 0.0101s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00426 |
Proper Motion in Dec (J2000) | -0.031066 |
Radial Velocity | +064.2km s-1 |
Trigonometric Parallax | +0.00513s |
Trigonometric Parallax Uncertainty | 0.00076s |
GCI Unit Vector in X (J2000) | -0.849153 |
GCI Unit Vector in Y (J2000) | -0.429977 |
GCI Unit Vector in Z (J2000) | -0.306690 |
Galactic Longitude | 321.29° |
Galactic Latitude
| 43.01°
|
Observational Data |
Observed Visual Magnitude (V) | 5.42 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
Observed B Magnitude | 7.01 |
Observed B-V Colour | +1.589 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.011 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.2 |
Observed Photographic Magnitude | 7.1 |
Morgan Keenan (MK) Spectral Type | M2III |
One-Dimensional Spectral Class | M0 |
Position Angle | |
Year of Observation | AD |