53 Camelopardalis

53 Camelopardalis

File:AXCamLightCurve.png A light curve for AX Camelopardalis, plotted from TESS data
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Camelopardalis
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	6.02 (6.3 + 7.5)
Characteristics
Evolutionary stage	main sequence
Spectral type	A3VpSrSiCrEu
B−V Template:Engvar	Template:Val
Variable type	α2 CVn
Astrometry
Radial velocity (Rv)	Template:Val km/s
Proper motion (μ)	RA: −21.367 mas/yr Dec.: −26.386 mas/yr
Parallax (π)	11.2327±0.1547 mas
Distance	Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)	1.05
Orbit
Period (P)	Template:Val
Semi-major axis (a)	Template:Val″
Eccentricity (e)	Template:Val
Inclination (i)	Template:Val°
Longitude of the node (Ω)	Template:Val°
Periastron epoch (T)	Template:Val
Argument of periastron (ω) (secondary)	Template:Val°
Semi-amplitude (K1) (primary)	Template:Val km/s
Details
53 Cam A
Mass	Template:Val Template:Solar mass
Radius	Template:Val Template:Solar radius
Luminosity	Template:Val Template:Solar luminosity
Surface gravity (log g)	Template:Val cgs
Temperature	Template:Val K
Rotation	Template:Val
Rotational velocity (v sin i)	Template:Val km/s
Age	Template:Val Myr
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
Template:Odlist
Database references
SIMBAD	data

53 Camelopardalis is a binary star system in the northern circumpolar constellation of Camelopardalis, located 290 light years away from the Sun as determined by parallax measurements. It has the variable star designation AX Camelopardalis; 53 Camelopardalis is the Flamsteed designation. This object is dimly visible to the naked eye as a white hued star with a baseline apparent visual magnitude of +6.02. It is a single-lined spectroscopic binary system with an orbital period of 6.63 years and a high eccentricity of about 0.7. The "a sin i" value of the primary is Template:Convert, where a is the semimajor axis and i is the orbital inclination.

The visible component is a well-studied magnetic Ap star with a stellar classification of A3VpSrSiCrEu and a visual magnitude of 6.3. The magnetic field topology of 53 Camelopardalis is complex, and is accompanied by abundance variations across the surface of elements like silicon, calcium, titanium, iron, and neodymium.

Tadeusz Jarzębowski discovered that 53 Camelopardalis is a variable star, in 1960. It is classified as an Alpha² Canum Venaticorum type variable star and the combined brightness of the system varies from magnitude +6.00 down to +6.05 with a rotationally-modulated period of 8.0278 days.

The primary has 2.1 times the mass of the Sun and 2.4 times the Sun's radius. It is spinning with a projected rotational velocity of 12.5 km/s and a rotation period of 8.0268 days. The inclination angle of the pole is estimated to be Template:Val. The star is about 615 million years old and is radiating 25 times the luminosity of the Sun from its photosphere at an effective temperature of 8,400 K.