Identification Data |
Common Name | |
Constellation | Perseus |
Star Name | 57 Per |
Skymap Number | 4330057 |
Henry Draper (HD) Number | 28704 |
Harvard Revised (HR) Number | 1434 |
SAO Number | 39604 |
Durchmusterung (DM) Number | BD+42 990 |
Washington Double Stars (WDS) Number
| 04334+4304
|
Positional Data |
Position and Proper Motion (PPM) Number | 47169 |
Right Ascension (RA) J2000 | 4h 33m 24.903s |
Declination (Dec) J2000 | +43° 3' 50.016" |
Position Uncertainty | 0.0096s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00052 |
Proper Motion in Dec (J2000) | +0.005366 |
Radial Velocity | -023.0km s-1 |
Trigonometric Parallax | +0.01548s |
Trigonometric Parallax Uncertainty | 0.00090s |
GCI Unit Vector in X (J2000) | 0.269497 |
GCI Unit Vector in Y (J2000) | 0.679071 |
GCI Unit Vector in Z (J2000) | 0.682814 |
Galactic Longitude | 160.02° |
Galactic Latitude
| -3.27°
|
Observational Data |
Observed Visual Magnitude (V) | 6.09 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
Observed B Magnitude | 6.49 |
Observed B-V Colour | +0.402 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.008 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 6.1 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | F0V |
One-Dimensional Spectral Class | F0 |
Position Angle | 198 |
Year of Observation | 1913. AD |