Identification Data |
Common Name | |
Constellation | Orion |
Star Name | 42 Ori |
Skymap Number | 5350097 |
Henry Draper (HD) Number | 37018 |
Harvard Revised (HR) Number | 1892 |
SAO Number | 132320 |
Durchmusterung (DM) Number | SD-04 1185 |
Washington Double Stars (WDS) Number
| 05354-0450
|
Positional Data |
Position and Proper Motion (PPM) Number | 188224 |
Right Ascension (RA) J2000 | 5h 35m 23.164s |
Declination (Dec) J2000 | -4° 50' 18.088" |
Position Uncertainty | 0.0153s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00029 |
Proper Motion in Dec (J2000) | -0.007266 |
Radial Velocity | +030.0km s-1 |
Trigonometric Parallax | +0.00415s |
Trigonometric Parallax Uncertainty | 0.00159s |
GCI Unit Vector in X (J2000) | 0.106810 |
GCI Unit Vector in Y (J2000) | 0.990695 |
GCI Unit Vector in Z (J2000) | -0.084345 |
Galactic Longitude | 208.51° |
Galactic Latitude
| -19.11°
|
Observational Data |
Observed Visual Magnitude (V) | 4.60 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 4.41 |
Observed B-V Colour | -0.193 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.3 |
Observed Photographic Magnitude | 4.5 |
Morgan Keenan (MK) Spectral Type | B1V |
One-Dimensional Spectral Class | B3 |
Position Angle | 207 |
Year of Observation | 1968. AD |