X Caeli

X Caeli

Observation data Epoch J2000      Equinox J2000
Constellation	Caelum
Right ascension	05^h 04^m 26.157^s
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
X Caeli, HR 1653, HD 32846, CD-35°2090, HIP 23596, SAO 195534, GC 6214, CCDM 05044-3542.
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

• HR 1653
• Image Gamma2 Caeli