Identification Data |
Common Name | |
Constellation | Sagitta |
Star Name | 9 Sge |
Skymap Number | 19520096 |
Henry Draper (HD) Number | 188001 |
Harvard Revised (HR) Number | 7574 |
SAO Number | 105360 |
Durchmusterung (DM) Number | BD+18 4276 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 137126 |
Right Ascension (RA) J2000 | 19h 52m 21.765s |
Declination (Dec) J2000 | +18° 40' 18.749" |
Position Uncertainty | 0.0054s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00001 |
Proper Motion in Dec (J2000) | -0.010566 |
Radial Velocity | +010.4km s-1 |
Trigonometric Parallax | +0.00023s |
Trigonometric Parallax Uncertainty | 0.00070s |
GCI Unit Vector in X (J2000) | 0.446086 |
GCI Unit Vector in Y (J2000) | -0.835771 |
GCI Unit Vector in Z (J2000) | 0.320148 |
Galactic Longitude | 56.49° |
Galactic Latitude
| -4.33°
|
Observational Data |
Observed Visual Magnitude (V) | 6.25 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.21 |
Observed B-V Colour | -0.036 |
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 | 6.3 |
Observed Photographic Magnitude | 6.1 |
Morgan Keenan (MK) Spectral Type | O7.5Iaf |
One-Dimensional Spectral Class | O0 |
Position Angle | |
Year of Observation | AD |