Identification Data |
Common Name | |
Constellation | Saggitarius |
Star Name | 7 Sgr |
Skymap Number | 18020169 |
Henry Draper (HD) Number | 164584 |
Harvard Revised (HR) Number | 6724 |
SAO Number | 186163 |
Durchmusterung (DM) Number | CD-2413793 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 267736 |
Right Ascension (RA) J2000 | 18h 2m 51.098s |
Declination (Dec) J2000 | -24° 16' 56.884" |
Position Uncertainty | 0.0107s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00005 |
Proper Motion in Dec (J2000) | -0.017766 |
Radial Velocity | -011.6km s-1 |
Trigonometric Parallax | +0.00295s |
Trigonometric Parallax Uncertainty | 0.00093s |
GCI Unit Vector in X (J2000) | 0.011342 |
GCI Unit Vector in Y (J2000) | -0.911459 |
GCI Unit Vector in Z (J2000) | -0.411235 |
Galactic Longitude | 5.97° |
Galactic Latitude
| -0.96°
|
Observational Data |
Observed Visual Magnitude (V) | 5.37 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.001 |
Observed B Magnitude | |
Observed B-V Colour | +0.495 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.018 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.1 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | F3III |
One-Dimensional Spectral Class | A5 |
Position Angle | |
Year of Observation | AD |