Identification Data |
Common Name | |
Constellation | Ophiuchus |
Star Name | 39omi Oph |
Skymap Number | 17180197 |
Henry Draper (HD) Number | 156350 |
Harvard Revised (HR) Number | 6425 |
SAO Number | 185237 |
Durchmusterung (DM) Number | CD-2413255 |
Washington Double Stars (WDS) Number
| 17180-2417
|
Positional Data |
Position and Proper Motion (PPM) Number | 400228 |
Right Ascension (RA) J2000 | 17h 18m 0.604s |
Declination (Dec) J2000 | -24° 17' 2.801" |
Position Uncertainty | 0.0584s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00434 |
Proper Motion in Dec (J2000) | -0.011267 |
Radial Velocity | -028.4km s-1 |
Trigonometric Parallax | +0.00678s |
Trigonometric Parallax Uncertainty | 0.00453s |
GCI Unit Vector in X (J2000) | -0.166071 |
GCI Unit Vector in Y (J2000) | -0.896261 |
GCI Unit Vector in Z (J2000) | -0.411262 |
Galactic Longitude | 0.55° |
Galactic Latitude
| 7.71°
|
Observational Data |
Observed Visual Magnitude (V) | 6.62 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.008 |
Observed B Magnitude | 7.12 |
Observed B-V Colour | +0.495 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.009 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 6.9 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | F6IV-V |
One-Dimensional Spectral Class | |
Position Angle | 355 |
Year of Observation | 1962. AD |