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HD 37605
HD 37605 is an orange dwarf star located approximately 143 light years away〔 in the constellation Orion. It formed about 7 billion years ago and is inactive.
There are two giant planets known in orbit. Planet b was discovered in 2004〔 and planet c was discovered eight years later. The planets do not transit relative to Earth; b's maximum inclination is 88.1%.〔
In a simulation, HD 37605 b's orbit "sweeps clean" most test particles within 0.5 AU; leaving only asteroids "in low-eccentricity orbits near the known planet’s apastron distance, near the 1:2 mean-motion resonance" with oscillating eccentricity up to 0.06, and also at 1:3 with oscillating eccentricity up to 0.4. Also, observation has ruled out planets heavier than 0.7 Jupiter mass with a period of one year or less; which still allows for planets at 0.8 AU or more.
== See also ==
* List of extrasolar planets
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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