Identification Data |
Common Name | |
Constellation | Ursa Major |
Star Name | 78 UMa |
Skymap Number | 13000116 |
Henry Draper (HD) Number | 113139 |
Harvard Revised (HR) Number | 4931 |
SAO Number | 28601 |
Durchmusterung (DM) Number | BD+57 1408 |
Washington Double Stars (WDS) Number
| 13007+5622
|
Positional Data |
Position and Proper Motion (PPM) Number | 33822 |
Right Ascension (RA) J2000 | 13h 0m 43.699s |
Declination (Dec) J2000 | +56° 21' 58.816" |
Position Uncertainty | 0.0063s |
Proper Motion in RA (J2000)/cos(Dec) | +0.01304 |
Proper Motion in Dec (J2000) | +0.002767 |
Radial Velocity | -010.2km s-1 |
Trigonometric Parallax | +0.04006s |
Trigonometric Parallax Uncertainty | 0.00060s |
GCI Unit Vector in X (J2000) | -0.534550 |
GCI Unit Vector in Y (J2000) | -0.145054 |
GCI Unit Vector in Z (J2000) | 0.832596 |
Galactic Longitude | 120.30° |
Galactic Latitude
| 60.71°
|
Observational Data |
Observed Visual Magnitude (V) | 4.94 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.31 |
Observed B-V Colour | +0.367 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.9 |
Observed Photographic Magnitude | 5.2 |
Morgan Keenan (MK) Spectral Type | F2V |
One-Dimensional Spectral Class | F0 |
Position Angle | 64 |
Year of Observation | 1988. AD |