Identification Data |
Common Name | |
Constellation | Draco |
Star Name | 17 Dra |
Skymap Number | 16360022 |
Henry Draper (HD) Number | 150117 |
Harvard Revised (HR) Number | 6185 |
SAO Number | 30013 |
Durchmusterung (DM) Number | BD+53 1876 |
Washington Double Stars (WDS) Number
| 16362+5255
|
Positional Data |
Position and Proper Motion (PPM) Number | 35549 |
Right Ascension (RA) J2000 | 16h 36m 13.720s |
Declination (Dec) J2000 | +52° 55' 27.920" |
Position Uncertainty | 0.0075s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00136 |
Proper Motion in Dec (J2000) | +0.027467 |
Radial Velocity | -010.4km s-1 |
Trigonometric Parallax | +0.00822s |
Trigonometric Parallax Uncertainty | 0.00060s |
GCI Unit Vector in X (J2000) | -0.215487 |
GCI Unit Vector in Y (J2000) | -0.563041 |
GCI Unit Vector in Z (J2000) | 0.797841 |
Galactic Longitude | 80.97° |
Galactic Latitude
| 41.48°
|
Observational Data |
Observed Visual Magnitude (V) | 5.08 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.050 |
Observed B Magnitude | 5.04 |
Observed B-V Colour | -0.04 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.050 |
Observed U Magnitude | 4.88 |
Observed U-B Colour | -0.16 |
Observed U Magnitude or (U-B) Magnitude Uncertainty | 0.050 |
Observed Photovisual Magnitude | 5.6 |
Observed Photographic Magnitude | 5.6 |
Morgan Keenan (MK) Spectral Type | B9V |
One-Dimensional Spectral Class | A2 |
Position Angle | 106 |
Year of Observation | 1983. AD |