“C/1909 R1”的意思、由来-开放百科全书

词条	C/1909 R1
释义	SeeHalley's Comet
随便看	Polar Medals Polar mesospheric cloud Polar mesospheric clouds Polar mesospheric summer echoes Polar molecule Polar molecules Polar motion Polar Motion Polar mount Polar (musician) Polar Music Prize Polar night Polaroid Corporation Polaroid film Polaroid glass Polaroid Land Camera Polaroid (polarizer) Polaroid SX-70 Polaron Polar Orbit Polar orbit Polar plateau Polar Prize Polar regions Polar Regions

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。