Identification Data |
Common Name | |
Constellation | Ophiuchus |
Star Name | 39omi Oph |
Skymap Number | 17180004 |
Henry Draper (HD) Number | 156349 |
Harvard Revised (HR) Number | 6424 |
SAO Number | 185238 |
Durchmusterung (DM) Number | CD-2413255 |
Washington Double Stars (WDS) Number
| 17180-2417
|
Positional Data |
Position and Proper Motion (PPM) Number | 400229 |
Right Ascension (RA) J2000 | 17h 18m 0.678s |
Declination (Dec) J2000 | -24° 17' 12.846" |
Position Uncertainty | 0.0168s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00435 |
Proper Motion in Dec (J2000) | -0.007767 |
Radial Velocity | -028.9km s-1 |
Trigonometric Parallax | +0.00898s |
Trigonometric Parallax Uncertainty | 0.00130s |
GCI Unit Vector in X (J2000) | -0.166063 |
GCI Unit Vector in Y (J2000) | -0.896242 |
GCI Unit Vector in Z (J2000) | -0.411306 |
Galactic Longitude | 0.55° |
Galactic Latitude
| 7.70°
|
Observational Data |
Observed Visual Magnitude (V) | 5.11 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.15 |
Observed B-V Colour | +1.043 |
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 | 5.4 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | K0II-III |
One-Dimensional Spectral Class | K0 |
Position Angle | 355 |
Year of Observation | 1962. AD |