Identification Data |
Common Name | |
Constellation | Boötes |
Star Name | 50 Boo |
Skymap Number | 15210127 |
Henry Draper (HD) Number | 136849 |
Harvard Revised (HR) Number | 5718 |
SAO Number | 64656 |
Durchmusterung (DM) Number | BD+33 2581 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 78532 |
Right Ascension (RA) J2000 | 15h 21m 48.575s |
Declination (Dec) J2000 | +32° 56' 1.301" |
Position Uncertainty | 0.0055s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00388 |
Proper Motion in Dec (J2000) | +0.013966 |
Radial Velocity | -006.6km s-1 |
Trigonometric Parallax | +0.01320s |
Trigonometric Parallax Uncertainty | 0.00059s |
GCI Unit Vector in X (J2000) | -0.534399 |
GCI Unit Vector in Y (J2000) | -0.647181 |
GCI Unit Vector in Z (J2000) | 0.543668 |
Galactic Longitude | 52.36° |
Galactic Latitude
| 57.12°
|
Observational Data |
Observed Visual Magnitude (V) | 5.38 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.33 |
Observed B-V Colour | -0.054 |
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 | 5.4 |
Observed Photographic Magnitude | 5.3 |
Morgan Keenan (MK) Spectral Type | B9Vn |
One-Dimensional Spectral Class | B9 |
Position Angle | |
Year of Observation | AD |