Identification Data |
Common Name | |
Constellation | Vulpecula |
Star Name | 30 Vul |
Skymap Number | 20440177 |
Henry Draper (HD) Number | 197752 |
Harvard Revised (HR) Number | 7939 |
SAO Number | 89084 |
Durchmusterung (DM) Number | BD+24 4229 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 111801 |
Right Ascension (RA) J2000 | 20h 44m 52.505s |
Declination (Dec) J2000 | +25° 16' 14.220" |
Position Uncertainty | 0.0074s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00205 |
Proper Motion in Dec (J2000) | -0.177666 |
Radial Velocity | +031.0km s-1 |
Trigonometric Parallax | +0.00894s |
Trigonometric Parallax Uncertainty | 0.00077s |
GCI Unit Vector in X (J2000) | 0.595877 |
GCI Unit Vector in Y (J2000) | -0.680215 |
GCI Unit Vector in Z (J2000) | 0.426894 |
Galactic Longitude | 68.83° |
Galactic Latitude
| -10.81°
|
Observational Data |
Observed Visual Magnitude (V) | 4.92 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.09 |
Observed B-V Colour | +1.174 |
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 | 5.1 |
Observed Photographic Magnitude | 6.2 |
Morgan Keenan (MK) Spectral Type | K1III |
One-Dimensional Spectral Class | K2 |
Position Angle | |
Year of Observation | AD |