Identification Data |
Common Name | |
Constellation | Cygnus |
Star Name | 44 Cyg |
Skymap Number | 20300238 |
Henry Draper (HD) Number | 195593 |
Harvard Revised (HR) Number | 7847 |
SAO Number | 70135 |
Durchmusterung (DM) Number | BD+36 4105 |
Washington Double Stars (WDS) Number
| 20310+3656
|
Positional Data |
Position and Proper Motion (PPM) Number | 85090 |
Right Ascension (RA) J2000 | 20h 30m 59.229s |
Declination (Dec) J2000 | +36° 56' 9.021" |
Position Uncertainty | 0.0057s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00002 |
Proper Motion in Dec (J2000) | -0.004267 |
Radial Velocity | -022.2km s-1 |
Trigonometric Parallax | +0.00206s |
Trigonometric Parallax Uncertainty | 0.00058s |
GCI Unit Vector in X (J2000) | 0.489315 |
GCI Unit Vector in Y (J2000) | -0.632033 |
GCI Unit Vector in Z (J2000) | 0.600920 |
Galactic Longitude | 76.44° |
Galactic Latitude
| -1.45°
|
Observational Data |
Observed Visual Magnitude (V) | 6.21 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | |
Observed B Magnitude | 7.18 |
Observed B-V Colour | +0.969 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.006 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 6.3 |
Observed Photographic Magnitude | 6.8 |
Morgan Keenan (MK) Spectral Type | F5Iab |
One-Dimensional Spectral Class | F8 |
Position Angle | 157 |
Year of Observation | 1989. AD |