| 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 |
