Identification Data |
Common Name | |
Constellation | Sagitta |
Star Name | 18 Sge |
Skymap Number | 20160079 |
Henry Draper (HD) Number | 192836 |
Harvard Revised (HR) Number | 7746 |
SAO Number | 88433 |
Durchmusterung (DM) Number | BD+21 4130 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 110778 |
Right Ascension (RA) J2000 | 20h 16m 19.787s |
Declination (Dec) J2000 | +21° 35' 55.321" |
Position Uncertainty | 0.0082s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00058 |
Proper Motion in Dec (J2000) | -0.025766 |
Radial Velocity | -004.1km s-1 |
Trigonometric Parallax | +0.01095s |
Trigonometric Parallax Uncertainty | 0.00075s |
GCI Unit Vector in X (J2000) | 0.521038 |
GCI Unit Vector in Y (J2000) | -0.770078 |
GCI Unit Vector in Z (J2000) | 0.368103 |
Galactic Longitude | 61.97° |
Galactic Latitude
| -7.57°
|
Observational Data |
Observed Visual Magnitude (V) | 6.12 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 7.16 |
Observed B-V Colour | +1.043 |
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 | 6.2 |
Observed Photographic Magnitude | 7.4 |
Morgan Keenan (MK) Spectral Type | K1III |
One-Dimensional Spectral Class | K0 |
Position Angle | |
Year of Observation | AD |