Identification Data |
Common Name | |
Constellation | Draco |
Star Name | 71 Dra |
Skymap Number | 20190142 |
Henry Draper (HD) Number | 193964 |
Harvard Revised (HR) Number | 7792 |
SAO Number | 18807 |
Durchmusterung (DM) Number | BD+61 2000 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 22101 |
Right Ascension (RA) J2000 | 20h 19m 36.718s |
Declination (Dec) J2000 | +62° 15' 26.900" |
Position Uncertainty | 0.0074s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00240 |
Proper Motion in Dec (J2000) | +0.024266 |
Radial Velocity | -019.4km s-1 |
Trigonometric Parallax | +0.00862s |
Trigonometric Parallax Uncertainty | 0.00052s |
GCI Unit Vector in X (J2000) | 0.266353 |
GCI Unit Vector in Y (J2000) | -0.381766 |
GCI Unit Vector in Z (J2000) | 0.885048 |
Galactic Longitude | 96.49° |
Galactic Latitude
| 14.36°
|
Observational Data |
Observed Visual Magnitude (V) | 5.72 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.67 |
Observed B-V Colour | -0.047 |
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 | 5.6 |
Observed Photographic Magnitude | 5.6 |
Morgan Keenan (MK) Spectral Type | B9V |
One-Dimensional Spectral Class | B9 |
Position Angle | |
Year of Observation | AD |