Identification Data |
Common Name | |
Constellation | Lynx |
Star Name | 20 Lyn |
Skymap Number | 7220287 |
Henry Draper (HD) Number | 57066 |
Harvard Revised (HR) Number | |
SAO Number | 26306 |
Durchmusterung (DM) Number | BD+50 1420 |
Washington Double Stars (WDS) Number
| 07223+5009
|
Positional Data |
Position and Proper Motion (PPM) Number | 31083 |
Right Ascension (RA) J2000 | 7h 22m 15.106s |
Declination (Dec) J2000 | +50° 8' 55.757" |
Position Uncertainty | 0.0740s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00258 |
Proper Motion in Dec (J2000) | -0.031967 |
Radial Velocity | +005.4km s-1 |
Trigonometric Parallax | -0.00439s |
Trigonometric Parallax Uncertainty | 0.00556s |
GCI Unit Vector in X (J2000) | -0.225071 |
GCI Unit Vector in Y (J2000) | 0.599969 |
GCI Unit Vector in Z (J2000) | 0.767711 |
Galactic Longitude | 167.53° |
Galactic Latitude
| 25.25°
|
Observational Data |
Observed Visual Magnitude (V) | 7.49 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.011 |
Observed B Magnitude | 7.67 |
Observed B-V Colour | +0.181 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.015 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 7.4 |
Observed Photographic Magnitude | 7.8 |
Morgan Keenan (MK) Spectral Type | |
One-Dimensional Spectral Class | F0 |
Position Angle | 254 |
Year of Observation | 1964. AD |