[P-PS07] 太陽系小天体：リュウグウとベヌーの探査および太陽系小天体全般

[PPS07-P29] Comet Interceptor mission: an overview and an expected contribution from Japan

*笠原 慧¹、亀田 真吾²、吉岡 和夫¹、松岡 彩子³、河北 秀世⁴、新中 善晴⁴、渡部 潤一⁵、斎藤 義文⁶、船瀬 龍^1,6、尾崎 直哉⁶ (1.東京大学、2.立教大学、3.京都大学、4.京都産業大学、5.国立天文台、6.宇宙科学研究所)

Comets are pristine small bodies and thus provide key information about the solar system evolution. Remote observations by ground observatories have characterized various comets, while in-situ observations by spacecraft have brought much more detailed information on several comets. However, the direct observations by spacecraft fly-by or rendezvous have been limited to the short-period comets, which neared the sun many times in the past and thus lost some of primitive characteristics. The Comet Interceptor mission, led by ESA, aims at a long period comet or an interstellar object. We, Japanese team, will provide an ultra-small daughter spacecraft, whose closest approach will be less than 1,000 km, allowing the first-ever multi-spacecraft fly-by observations of a comet.