Characteristics HIP 11915 b

1 characteristics

1.1 mass, radius , temperature
1.2 host star
1.3 orbit

characteristics
mass, radius , temperature

hip 11915 b jovian planet, exoplanet mass , radius close of planet jupiter. has mass of 0.99 mj (315 m⊕) , radius of around 1 rj. based on models, expected have temperature of around 118 k (−155 °c; −247 °f). same planet jupiter.

host star

the host star, hip 11915, g-type star same mass of sun (a solar twin). has temperature of 5760 k, same sun, has temperature of 5778 k. star s age estimated 4.16 billion years old, 540 million years younger sun, 4.6 billion years old. radius of star has not been directly known, given same mass sun, hip 11915 has radius of around 1.01 r☉, making same size sun.

the star s apparent magnitude, or how bright appears earth s perspective, 8.58. therefore, hip 11915 dim seen naked eye, can seen binoculars.

orbit

hip 11915 b orbits host star 102% of sun s luminosity orbital period of 10 years , orbital radius of 4.8 times of earth s (nearly same jupiter, has orbital distance of around 5.2 au). eccentricity 0.1, higher jupiter s, meaning has orbit more eccentric. not have effect on residing planets near star, though.

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