Identification Data |
Common Name | |
Constellation | Ophiuchus |
Star Name | 45 Oph |
Skymap Number | 17270075 |
Henry Draper (HD) Number | 157919 |
Harvard Revised (HR) Number | 6492 |
SAO Number | 185412 |
Durchmusterung (DM) Number | CD-2913557 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 266888 |
Right Ascension (RA) J2000 | 17h 27m 21.273s |
Declination (Dec) J2000 | -29° 52' 1.320" |
Position Uncertainty | 0.0081s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00111 |
Proper Motion in Dec (J2000) | -0.137466 |
Radial Velocity | +037.3km s-1 |
Trigonometric Parallax | +0.02926s |
Trigonometric Parallax Uncertainty | 0.00086s |
GCI Unit Vector in X (J2000) | -0.123107 |
GCI Unit Vector in Y (J2000) | -0.858401 |
GCI Unit Vector in Z (J2000) | -0.497989 |
Galactic Longitude | 357.08° |
Galactic Latitude
| 2.85°
|
Observational Data |
Observed Visual Magnitude (V) | 4.28 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 4.69 |
Observed B-V Colour | +0.412 |
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 | 4.4 |
Observed Photographic Magnitude | 4.8 |
Morgan Keenan (MK) Spectral Type | F5IVDeltaSct* |
One-Dimensional Spectral Class | F5 |
Position Angle | |
Year of Observation | AD |