| Identification Data |
| Common Name |
|
| Constellation |
Apus |
| Star Name |
eta Aps |
| Skymap Number |
14180037 |
| Henry Draper (HD) Number |
123998 |
| Harvard Revised (HR) Number |
5303 |
| SAO Number |
258693 |
| Durchmusterung (DM) Number |
CP-80 706 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number |
377662 |
| Right Ascension (RA) J2000 |
14h 18m 13.896s |
| Declination (Dec) J2000 |
-81° 0' 27.937" |
| Position Uncertainty |
0.0056s |
| Proper Motion in RA (J2000)/cos(Dec) |
-0.00851 |
| Proper Motion in Dec (J2000) |
-0.065466 |
| Radial Velocity |
-009.4km s-1 |
| Trigonometric Parallax |
+0.02336s |
| Trigonometric Parallax Uncertainty |
0.00050s |
| GCI Unit Vector in X (J2000) |
-0.128722 |
| GCI Unit Vector in Y (J2000) |
-0.088660 |
| GCI Unit Vector in Z (J2000) |
-0.987710 |
| Galactic Longitude |
306.43° |
Galactic Latitude
|
-18.73°
|
| Observational Data |
| Observed Visual Magnitude (V) |
4.90 |
| Derived Visual Magnitude |
|
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty |
0.002 |
| Observed B Magnitude |
5.15 |
| Observed B-V Colour |
+0.249 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty |
0.003 |
| Observed U Magnitude |
|
| Observed U-B Colour |
|
| Observed U Magnitude or (U-B) Magnitude Uncertainty |
|
| Observed Photovisual Magnitude |
5.0 |
| Observed Photographic Magnitude |
|
| Morgan Keenan (MK) Spectral Type |
A2m |
| One-Dimensional Spectral Class |
A2 |
| Position Angle |
|
| Year of Observation |
AD |
