Identification Data |
Common Name | |
Constellation | Ophiuchus |
Star Name | 12 Oph |
Skymap Number | 16360034 |
Henry Draper (HD) Number | 149661 |
Harvard Revised (HR) Number | 6171 |
SAO Number | 141269 |
Durchmusterung (DM) Number | SD-02 4211 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 179865 |
Right Ascension (RA) J2000 | 16h 36m 21.449s |
Declination (Dec) J2000 | -2° 19' 28.501" |
Position Uncertainty | 0.0103s |
Proper Motion in RA (J2000)/cos(Dec) | +0.03037 |
Proper Motion in Dec (J2000) | -0.307666 |
Radial Velocity | -015.4km s-1 |
Trigonometric Parallax | +0.10227s |
Trigonometric Parallax Uncertainty | 0.00085s |
GCI Unit Vector in X (J2000) | -0.356618 |
GCI Unit Vector in Y (J2000) | -0.933370 |
GCI Unit Vector in Z (J2000) | -0.040561 |
Galactic Longitude | 13.73° |
Galactic Latitude
| 28.42°
|
Observational Data |
Observed Visual Magnitude (V) | 5.77 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.62 |
Observed B-V Colour | +0.848 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.9 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | K2V |
One-Dimensional Spectral Class | K0 |
Position Angle | |
Year of Observation | AD |