| Identification Data |
| Common Name | |
| Constellation | Caelum |
| Star Name | alp Cae |
| Skymap Number | 4400058 |
| Henry Draper (HD) Number | 29875 |
| Harvard Revised (HR) Number | 1502 |
| SAO Number | 216926 |
| Durchmusterung (DM) Number | CD-42 1587 |
Washington Double Stars (WDS) Number
| 04406-4152
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 308904 |
| Right Ascension (RA) J2000 | 4h 40m 33.712s |
| Declination (Dec) J2000 | -41° 51' 49.509" |
| Position Uncertainty | 0.0063s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.01264 |
| Proper Motion in Dec (J2000) | -0.075066 |
| Radial Velocity | -000.6km s-1 |
| Trigonometric Parallax | +0.04967s |
| Trigonometric Parallax Uncertainty | 0.00053s |
| GCI Unit Vector in X (J2000) | 0.252998 |
| GCI Unit Vector in Y (J2000) | 0.700443 |
| GCI Unit Vector in Z (J2000) | -0.667362 |
| Galactic Longitude | 246.15° |
Galactic Latitude
| -41.49°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.45 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.78 |
| Observed B-V Colour | +0.332 |
| 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 | 4.5 |
| Observed Photographic Magnitude | 4.9 |
| Morgan Keenan (MK) Spectral Type | F2V |
| One-Dimensional Spectral Class | F2 |
| Position Angle | 121 |
| Year of Observation | 1933. AD |
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