Identification Data |
Common Name | |
Constellation | Ophiuchus |
Star Name | 44 Oph |
Skymap Number | 17260074 |
Henry Draper (HD) Number | 157792 |
Harvard Revised (HR) Number | 6486 |
SAO Number | 185401 |
Durchmusterung (DM) Number | CD-2413337 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 266866 |
Right Ascension (RA) J2000 | 17h 26m 22.216s |
Declination (Dec) J2000 | -24° 10' 31.114" |
Position Uncertainty | 0.0098s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00014 |
Proper Motion in Dec (J2000) | -0.117766 |
Radial Velocity | -037.2km s-1 |
Trigonometric Parallax | +0.03896s |
Trigonometric Parallax Uncertainty | 0.00087s |
GCI Unit Vector in X (J2000) | -0.133388 |
GCI Unit Vector in Y (J2000) | -0.902493 |
GCI Unit Vector in Z (J2000) | -0.409530 |
Galactic Longitude | 1.71° |
Galactic Latitude
| 6.19°
|
Observational Data |
Observed Visual Magnitude (V) | 4.16 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 4.46 |
Observed B-V Colour | +0.295 |
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 | 4.3 |
Observed Photographic Magnitude | 4.6 |
Morgan Keenan (MK) Spectral Type | A3m |
One-Dimensional Spectral Class | F0 |
Position Angle | |
Year of Observation | AD |