X Caeli
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Caelum |
| Right ascension | 05h 04m 26.157s |
| Declination | -35° 42′ 18.393″ |
| Apparent magnitude (V) | 6.335 |
| Characteristics | |
| Spectral type | F1III |
| U−B color index | 0.08 |
| B−V color index | 0.3 |
| Variable type | Delta Scuti variable |
| Astrometry | |
| Radial velocity (Rv) | 5.9 km/s |
| Proper motion (μ) | RA: 28.46 mas/yr Dec.: 40.58 mas/yr |
| Parallax (π) | 9.77 ± 0.69 mas |
| Distance | 330 ± 20 ly (102 ± 7 pc) |
| Absolute magnitude (MV) | 6.605 |
| Details | |
| Mass | 1.7 M☉ |
| Radius | 1.4 R☉ |
| Luminosity | 6 L☉ |
| Temperature | 6,000–7,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
X Caeli, also known as Gamma2 Caeli (γ2 Cae, γ2 Caeli) is a binary star in the constellation Caelum. It is approximately 334 light years from Earth.
The primary component, X Caeli A, is a yellow-white F-type giant with a mean apparent magnitude of +6.32. It is classified as a Delta Scuti type variable star and its brightness varies from magnitude +6.28 to +6.39 with a period of 3.25 hours. The companion star, X Caeli B, has an apparent magnitude of +9.6 and is 0.886 arcseconds from the primary, and spectral type F2IV/V.
References
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