Identification Data |
Common Name | |
Constellation | Draco |
Star Name | 40 Dra |
Skymap Number | 18000008 |
Henry Draper (HD) Number | 166865 |
Harvard Revised (HR) Number | 6809 |
SAO Number | 8994 |
Durchmusterung (DM) Number | BD+79 570 |
Washington Double Stars (WDS) Number
| 18002+8000
|
Positional Data |
Position and Proper Motion (PPM) Number | 3146 |
Right Ascension (RA) J2000 | 18h 0m 3.548s |
Declination (Dec) J2000 | +80° 0' 3.028" |
Position Uncertainty | 0.0907s |
Proper Motion in RA (J2000)/cos(Dec) | +0.02096 |
Proper Motion in Dec (J2000) | +0.130567 |
Radial Velocity | +003.9km s-1 |
Trigonometric Parallax | +0.01964s |
Trigonometric Parallax Uncertainty | 0.00380s |
GCI Unit Vector in X (J2000) | 0.000045 |
GCI Unit Vector in Y (J2000) | -0.173634 |
GCI Unit Vector in Z (J2000) | 0.984810 |
Galactic Longitude | 111.78° |
Galactic Latitude
| 28.91°
|
Observational Data |
Observed Visual Magnitude (V) | 6.02 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.53 |
Observed B-V Colour | +0.511 |
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 | 6.2 |
Observed Photographic Magnitude | 7.0 |
Morgan Keenan (MK) Spectral Type | F7V |
One-Dimensional Spectral Class | F5 |
Position Angle | |
Year of Observation | AD |