Identification Data |
Common Name | |
Constellation | Draco |
Star Name | 17 Dra |
Skymap Number | 16360175 |
Henry Draper (HD) Number | 150118 |
Harvard Revised (HR) Number | 6186 |
SAO Number | 30013 |
Durchmusterung (DM) Number | BD+53 1876 |
Washington Double Stars (WDS) Number
| 16362+5255
|
Positional Data |
Position and Proper Motion (PPM) Number | |
Right Ascension (RA) J2000 | 16h 36m 14.058s |
Declination (Dec) J2000 | +52° 55' 27.082" |
Position Uncertainty | 0.0154s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00172 |
Proper Motion in Dec (J2000) | +0.032167 |
Radial Velocity | -010.4km s-1 |
Trigonometric Parallax | +0.00822s |
Trigonometric Parallax Uncertainty | 0.00060s |
GCI Unit Vector in X (J2000) | -0.215474 |
GCI Unit Vector in Y (J2000) | -0.563049 |
GCI Unit Vector in Z (J2000) | 0.797839 |
Galactic Longitude | 80.97° |
Galactic Latitude
| 41.47°
|
Observational Data |
Observed Visual Magnitude (V) | 6.53 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.050 |
Observed B Magnitude | 6.47 |
Observed B-V Colour | -0.06 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.050 |
Observed U Magnitude | 6.31 |
Observed U-B Colour | -0.16 |
Observed U Magnitude or (U-B) Magnitude Uncertainty | 0.050 |
Observed Photovisual Magnitude | 6.6 |
Observed Photographic Magnitude | 6.6 |
Morgan Keenan (MK) Spectral Type | A1Vnn |
One-Dimensional Spectral Class | A2 |
Position Angle | 106 |
Year of Observation | 1983. AD |