Identification Data |
Common Name | |
Constellation | Boötes |
Star Name | 9 Boo |
Skymap Number | 13560086 |
Henry Draper (HD) Number | 121710 |
Harvard Revised (HR) Number | 5247 |
SAO Number | 83084 |
Durchmusterung (DM) Number | BD+28 2278 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 102970 |
Right Ascension (RA) J2000 | 13h 56m 34.181s |
Declination (Dec) J2000 | +27° 29' 31.496" |
Position Uncertainty | 0.0071s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00212 |
Proper Motion in Dec (J2000) | -0.047866 |
Radial Velocity | -039.8km s-1 |
Trigonometric Parallax | +0.00503s |
Trigonometric Parallax Uncertainty | 0.00078s |
GCI Unit Vector in X (J2000) | -0.774782 |
GCI Unit Vector in Y (J2000) | -0.431990 |
GCI Unit Vector in Z (J2000) | 0.461626 |
Galactic Longitude | 38.11° |
Galactic Latitude
| 75.54°
|
Observational Data |
Observed Visual Magnitude (V) | 5.01 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.45 |
Observed B-V Colour | +1.440 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.2 |
Observed Photographic Magnitude | 6.2 |
Morgan Keenan (MK) Spectral Type | K3IIIb |
One-Dimensional Spectral Class | K0 |
Position Angle | |
Year of Observation | AD |