Extrasolar Visions - HD 41004 A b

» Extrasolar Planet Guide » HD 41004 A » HD 41004 A b

Water Cloud Jovian, Eccentric

Object Type:

Water Cloud Jovian, Eccentric

Parent Star:

HD 41004 A (K1 V)

Discovery Status:

Confirmed

Current Planet

Habitability Zone

Mass ( M sin i ):

2.3 Jupiters

Periastron Distance:

0.79 AU

Mean Distance:

1.31 AU

Apastron Distance:

1.82 AU

Orbital Period:

655 ± 37 Days

Eccentricity:

0.39 ± 0.17

Argument of Perihelion (omega):

114 °

System Age:

1600 Myr

Planet Appearance:

White water ice clouds

Estimated Radius:

1.062 Jupiters ¹

Estimated Periastron Temp:

256 Kelvin

Estimated Mean Temp:

200 Kelvin

Estimated Apastron Temp:

169 Kelvin

Temp from
Internal Heating :

192.061 Kelvins ²

Max Angular Star Size:

0.787°

Mean Angular Star Size:

0.475°

Min Angular Star Size:

0.341°

Gravitational Influence
(Hill Sphere):

0.132 AU / 19890000 km

Max Stable Prograde Moon Orbit:

0.047 AU / 7160000 km

Max Moon Mass:

> 10 Earths ³

Tidally locked if older than:

> 20 Gyr ⁴

Estimated Bond Albedo:

~ 0.7 ⁵

Notes:
    ¹ from planet formation models of Burrows et al
    ² from planet formation models of Burrows et al
    ³ based on periastron due to high eccentricity
    ⁴ orbit may be too eccentric for 1:1 tidal lock
    ⁵ from Sudarsky et al. 2000

Year Discovered:

2003

Detection Method:

Doppler Spectroscopy

Discovered By:

ZUCKER S. et al

HD 41004 A is in a double system. HD 41004 B is a M4V star and has a 19 Jupiter mass brown dwarf companion.

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