Identification Data |
Common Name | |
Constellation | Apus |
Star Name | del1Aps |
Skymap Number | 16200091 |
Henry Draper (HD) Number | 145366 |
Harvard Revised (HR) Number | 6020 |
SAO Number | 257380 |
Durchmusterung (DM) Number | CP-78 1092 |
Washington Double Stars (WDS) Number
| 16203-7842
|
Positional Data |
Position and Proper Motion (PPM) Number | 373033 |
Right Ascension (RA) J2000 | 16h 20m 20.805s |
Declination (Dec) J2000 | -78° 41' 44.682" |
Position Uncertainty | 0.0061s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00337 |
Proper Motion in Dec (J2000) | -0.036666 |
Radial Velocity | -012.0km s-1 |
Trigonometric Parallax | +0.00426s |
Trigonometric Parallax Uncertainty | 0.00057s |
GCI Unit Vector in X (J2000) | -0.082572 |
GCI Unit Vector in Y (J2000) | -0.177779 |
GCI Unit Vector in Z (J2000) | -0.980600 |
Galactic Longitude | 312.42° |
Galactic Latitude
| -19.89°
|
Observational Data |
Observed Visual Magnitude (V) | 4.74 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.008 |
Observed B Magnitude | 6.30 |
Observed B-V Colour | +1.562 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.010 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.8 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | M5IIIb |
One-Dimensional Spectral Class | M0 |
Position Angle | 12 |
Year of Observation | 1918. AD |