Identification Data |
Common Name | |
Constellation | Auriga |
Star Name | 2 Aur |
Skymap Number | 4520113 |
Henry Draper (HD) Number | 30834 |
Harvard Revised (HR) Number | 1551 |
SAO Number | 57475 |
Durchmusterung (DM) Number | BD+36 952 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 69715 |
Right Ascension (RA) J2000 | 4h 52m 37.980s |
Declination (Dec) J2000 | +36° 42' 11.473" |
Position Uncertainty | 0.0107s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00216 |
Proper Motion in Dec (J2000) | -0.003966 |
Radial Velocity | -016.5km s-1 |
Trigonometric Parallax | +0.00581s |
Trigonometric Parallax Uncertainty | 0.00082s |
GCI Unit Vector in X (J2000) | 0.232288 |
GCI Unit Vector in Y (J2000) | 0.767355 |
GCI Unit Vector in Z (J2000) | 0.597670 |
Galactic Longitude | 167.26° |
Galactic Latitude
| -4.65°
|
Observational Data |
Observed Visual Magnitude (V) | 4.78 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.18 |
Observed B-V Colour | +1.399 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.006 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.0 |
Observed Photographic Magnitude | 6.1 |
Morgan Keenan (MK) Spectral Type | K2.5IIIBa0.5 |
One-Dimensional Spectral Class | K2 |
Position Angle | |
Year of Observation | AD |