Identification Data |
Common Name | |
Constellation | Vulpecula |
Star Name | 25 Vul |
Skymap Number | 20220016 |
Henry Draper (HD) Number | 193911 |
Harvard Revised (HR) Number | 7789 |
SAO Number | 88580 |
Durchmusterung (DM) Number | BD+23 3986 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 110982 |
Right Ascension (RA) J2000 | 20h 22m 3.430s |
Declination (Dec) J2000 | +24° 26' 45.957" |
Position Uncertainty | 0.0065s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00014 |
Proper Motion in Dec (J2000) | -0.006966 |
Radial Velocity | -013.0km s-1 |
Trigonometric Parallax | +0.00181s |
Trigonometric Parallax Uncertainty | 0.00064s |
GCI Unit Vector in X (J2000) | 0.528828 |
GCI Unit Vector in Y (J2000) | -0.740999 |
GCI Unit Vector in Z (J2000) | 0.413837 |
Galactic Longitude | 65.10° |
Galactic Latitude
| -7.09°
|
Observational Data |
Observed Visual Magnitude (V) | 5.53 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.44 |
Observed B-V Colour | -0.092 |
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 | 5.4 |
Observed Photographic Magnitude | 5.4 |
Morgan Keenan (MK) Spectral Type | B8IIIne |
One-Dimensional Spectral Class | B8 |
Position Angle | |
Year of Observation | AD |