Identification Data |
Common Name | Dsiban |
Constellation | Draco |
Star Name | 31psi1Dra |
Skymap Number | 17410194 |
Henry Draper (HD) Number | 162003 |
Harvard Revised (HR) Number | 6636 |
SAO Number | 8890 |
Durchmusterung (DM) Number | BD+72 804 |
Washington Double Stars (WDS) Number
| 17419+7209
|
Positional Data |
Position and Proper Motion (PPM) Number | 9604 |
Right Ascension (RA) J2000 | 17h 41m 56.357s |
Declination (Dec) J2000 | +72° 8' 55.836" |
Position Uncertainty | 0.0128s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00579 |
Proper Motion in Dec (J2000) | -0.269867 |
Radial Velocity | -010.3km s-1 |
Trigonometric Parallax | +0.04538s |
Trigonometric Parallax Uncertainty | 0.00082s |
GCI Unit Vector in X (J2000) | -0.024132 |
GCI Unit Vector in Y (J2000) | -0.305594 |
GCI Unit Vector in Z (J2000) | 0.951856 |
Galactic Longitude | 102.97° |
Galactic Latitude
| 31.03°
|
Observational Data |
Observed Visual Magnitude (V) | 4.57 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.00 |
Observed B-V Colour | +0.432 |
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 | 4.9 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | F5IV-V |
One-Dimensional Spectral Class | F5 |
Position Angle | 15 |
Year of Observation | 1977. AD |