Identification Data |
Common Name | Asellus Primus |
Constellation | Boötes |
Star Name | 23the Boo |
Skymap Number | 14250030 |
Henry Draper (HD) Number | 126660 |
Harvard Revised (HR) Number | 5404 |
SAO Number | 29137 |
Durchmusterung (DM) Number | BD+52 1804 |
Washington Double Stars (WDS) Number
| 14252+5151
|
Positional Data |
Position and Proper Motion (PPM) Number | 34508 |
Right Ascension (RA) J2000 | 14h 25m 11.796s |
Declination (Dec) J2000 | +51° 51' 2.677" |
Position Uncertainty | 0.0065s |
Proper Motion in RA (J2000)/cos(Dec) | -0.02548 |
Proper Motion in Dec (J2000) | -0.399166 |
Radial Velocity | -010.9km s-1 |
Trigonometric Parallax | +0.06863s |
Trigonometric Parallax Uncertainty | 0.00056s |
GCI Unit Vector in X (J2000) | -0.497837 |
GCI Unit Vector in Y (J2000) | -0.365686 |
GCI Unit Vector in Z (J2000) | 0.786404 |
Galactic Longitude | 93.83° |
Galactic Latitude
| 59.65°
|
Observational Data |
Observed Visual Magnitude (V) | 4.05 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.56 |
Observed B-V Colour | +0.507 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.1 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | F7V |
One-Dimensional Spectral Class | F8 |
Position Angle | 182 |
Year of Observation | 1971. AD |