Identification Data |
Common Name | |
Constellation | Ophiuchus |
Star Name | 71 Oph |
Skymap Number | 18070062 |
Henry Draper (HD) Number | 165760 |
Harvard Revised (HR) Number | 6770 |
SAO Number | 123140 |
Durchmusterung (DM) Number | BD+08 3582 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 165205 |
Right Ascension (RA) J2000 | 18h 7m 18.360s |
Declination (Dec) J2000 | +8° 44' 1.922" |
Position Uncertainty | 0.0077s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00066 |
Proper Motion in Dec (J2000) | +0.030266 |
Radial Velocity | -003.2km s-1 |
Trigonometric Parallax | +0.01371s |
Trigonometric Parallax Uncertainty | 0.00082s |
GCI Unit Vector in X (J2000) | 0.031503 |
GCI Unit Vector in Y (J2000) | -0.987902 |
GCI Unit Vector in Z (J2000) | 0.151845 |
Galactic Longitude | 35.82° |
Galactic Latitude
| 13.74°
|
Observational Data |
Observed Visual Magnitude (V) | 4.64 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.60 |
Observed B-V Colour | +0.960 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.7 |
Observed Photographic Magnitude | 5.6 |
Morgan Keenan (MK) Spectral Type | G8III |
One-Dimensional Spectral Class | G5 |
Position Angle | |
Year of Observation | AD |