Identification Data |
Common Name | |
Constellation | Ara |
Star Name | gam Ara |
Skymap Number | 17250064 |
Henry Draper (HD) Number | 157246 |
Harvard Revised (HR) Number | 6462 |
SAO Number | 244726 |
Durchmusterung (DM) Number | CP-56 8225 |
Washington Double Stars (WDS) Number
| 17254-5623
|
Positional Data |
Position and Proper Motion (PPM) Number | 345992 |
Right Ascension (RA) J2000 | 17h 25m 23.659s |
Declination (Dec) J2000 | -56° 22' 39.816" |
Position Uncertainty | 0.0082s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00009 |
Proper Motion in Dec (J2000) | -0.015966 |
Radial Velocity | -003.0km s-1 |
Trigonometric Parallax | +0.00287s |
Trigonometric Parallax Uncertainty | 0.00075s |
GCI Unit Vector in X (J2000) | -0.083291 |
GCI Unit Vector in Y (J2000) | -0.547415 |
GCI Unit Vector in Z (J2000) | -0.832706 |
Galactic Longitude | 334.65° |
Galactic Latitude
| -11.48°
|
Observational Data |
Observed Visual Magnitude (V) | 3.32 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 3.18 |
Observed B-V Colour | -0.141 |
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 | 3.5 |
Observed Photographic Magnitude | 3.3 |
Morgan Keenan (MK) Spectral Type | B1Ib |
One-Dimensional Spectral Class | B1 |
Position Angle | 328 |
Year of Observation | 1934. AD |