XO-4b

Planetbox begin
name = XO-4b Planetbox star
star = XO-4
constell = Lynx
RA = RA|07|21|33.1657
DEC = DEC|+58|16|05.005
dist_ly = 956 ± 62
dist_pc = 293 ± 19
class = F5VPlanetbox orbit
semimajor = 0.0555 ± 0.00011
semimajor_gigameter = 8.30
periastron = 0.0554
periastron_gigameter = 8.29
apastron = 0.0556
apastron_gigameter = 8.31
eccentricity = 0.0024
period = 4.12502 ± 2e-5
period_year = 0.011293
period_megasecond = 0.35640
inclination = 88.7 ± 1.1
ang_dist = 0.189
long_peri =
t_transit = 2454485.9322 ± 0.0004
semi-amp = Planetbox character
mass = 1.72 ± 0.2
radius = 1.34 ± 0.048
density = 948
gravity = 24.8
gravity _earth = 2.53
temperature = ~1333 Planetbox discovery
discovery_date = May 19, 2008
discoverers = McCullough "et al"
discovery_method = Transit
discovery_site = Maui, Hawaii
discovery_status = Published

XO-4b is an extrasolar planet approximately 956 light years away in the constellation of Lynx. This planet was found by the transit method by McCullough in May 2008. The planet has mass 1.72 M_J and radius 1.34 R_J. This planet orbits very close to the F-type parent star, as it is typical for transiting planets, classing this planet as Hot Jupiter. It takes only 4.125 days (or 99 hours) to orbit at a distance of 8.3 gigameters (0.0555 AU) away from the star. As it is typical for hot Jupiters, the planet orbits in a circular path (circularity 0.9976). This planet may have clouds made of lithium, sodium, and potassium in the upper atmosphere, and silicate clouds deeper in the atmosphere.

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