Identification Data |
Common Name | Ruchba |
Constellation | Cygnus |
Star Name | 46ome2Cyg |
Skymap Number | 20310075 |
Henry Draper (HD) Number | 195774 |
Harvard Revised (HR) Number | 7851 |
SAO Number | 49741 |
Durchmusterung (DM) Number | BD+48 3154 |
Washington Double Stars (WDS) Number
| 20313+4913
|
Positional Data |
Position and Proper Motion (PPM) Number | 60073 |
Right Ascension (RA) J2000 | 20h 31m 18.816s |
Declination (Dec) J2000 | +49° 13' 13.070" |
Position Uncertainty | 0.0057s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00090 |
Proper Motion in Dec (J2000) | -0.031366 |
Radial Velocity | -064.0km s-1 |
Trigonometric Parallax | +0.00807s |
Trigonometric Parallax Uncertainty | 0.00049s |
GCI Unit Vector in X (J2000) | 0.400577 |
GCI Unit Vector in Y (J2000) | -0.515893 |
GCI Unit Vector in Z (J2000) | 0.757226 |
Galactic Longitude | 86.42° |
Galactic Latitude
| 5.73°
|
Observational Data |
Observed Visual Magnitude (V) | 5.45 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.99 |
Observed B-V Colour | +1.536 |
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 | 5.6 |
Observed Photographic Magnitude | 6.9 |
Morgan Keenan (MK) Spectral Type | M2IIIab |
One-Dimensional Spectral Class | M0 |
Position Angle | 324 |
Year of Observation | 1922. AD |