Identification Data |
Common Name | |
Constellation | Ara |
Star Name | eps1Ara |
Skymap Number | 16590106 |
Henry Draper (HD) Number | 152980 |
Harvard Revised (HR) Number | 6295 |
SAO Number | 244331 |
Durchmusterung (DM) Number | CP-5210372 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 345574 |
Right Ascension (RA) J2000 | 16h 59m 35.047s |
Declination (Dec) J2000 | -53° 9' 37.576" |
Position Uncertainty | 0.0102s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00013 |
Proper Motion in Dec (J2000) | +0.021566 |
Radial Velocity | +023.1km s-1 |
Trigonometric Parallax | +0.01072s |
Trigonometric Parallax Uncertainty | 0.00079s |
GCI Unit Vector in X (J2000) | -0.156232 |
GCI Unit Vector in Y (J2000) | -0.578864 |
GCI Unit Vector in Z (J2000) | -0.800318 |
Galactic Longitude | 335.15° |
Galactic Latitude
| -6.59°
|
Observational Data |
Observed Visual Magnitude (V) | 4.05 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.50 |
Observed B-V Colour | +1.451 |
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 | 4.2 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | K4IIIab |
One-Dimensional Spectral Class | K2 |
Position Angle | |
Year of Observation | AD |