A new interferometric study of four exoplanet host stars: θ Cygni, 14 Andromedae, υ Andromedae and 42 Draconis

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Table 7

θ Cyg, coordinates and parameters.

Coordinates

RA (J2000)	19:36:26.5
Dec (J2000)	+50°13′16′′

Stellar parameters	Values

Stellar type	F4V
V mag	4.50 ± 009
K mag	3.5 ± 0.296
M_V	3.14
v sini [km s^-1]	7
T_eff [K]	6745^a	6381 ± 65^b
Distance [pc]	18.33 ± 0.05
Parallax [mas]	54.54 ± 0.15^f
Radius [R_⊙]	1.70 ± 0.03^b
Mass [M_⊙]	1.38 ± 0.05^a	1.34 ± 0.01^b
Age [Gyr]	1.5 ^a	2.8 ± 0.2^b
log g	4.2^e
[Fe/H]	−0.08^a	−0.04^b
log L [L_⊙]	0.63 ± 0.003^d	4.265 ± 0.090^b

References.

^(a)

Desort et al. (2009);

^(b)

Boyajian et al. (2012);

^(c)

van Belle et al. (2008);

^(d)

Guzik et al. (2011);

^(e)

Erspamer & North (2003);

^(f)

van Leeuwen (2007).

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