Identification Data |
Common Name | |
Constellation | Triagulum |
Star Name | eps TrA |
Skymap Number | 15360139 |
Henry Draper (HD) Number | 138538 |
Harvard Revised (HR) Number | 5771 |
SAO Number | 253226 |
Durchmusterung (DM) Number | CP-65 3102 |
Washington Double Stars (WDS) Number
| 15367-6619
|
Positional Data |
Position and Proper Motion (PPM) Number | 361547 |
Right Ascension (RA) J2000 | 15h 36m 43.222s |
Declination (Dec) J2000 | -66° 19' 1.335" |
Position Uncertainty | 0.0053s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00407 |
Proper Motion in Dec (J2000) | -0.054766 |
Radial Velocity | -015.5km s-1 |
Trigonometric Parallax | +0.01509s |
Trigonometric Parallax Uncertainty | 0.00062s |
GCI Unit Vector in X (J2000) | -0.235076 |
GCI Unit Vector in Y (J2000) | -0.325703 |
GCI Unit Vector in Z (J2000) | -0.915782 |
Galactic Longitude | 318.49° |
Galactic Latitude
| -8.57°
|
Observational Data |
Observed Visual Magnitude (V) | 4.11 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.001 |
Observed B Magnitude | 5.28 |
Observed B-V Colour | +1.165 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.1 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | K1-2III |
One-Dimensional Spectral Class | K0 |
Position Angle | 218 |
Year of Observation | 1918. AD |