... The small planets (asteroids) are the Solarsystem solids with diameter from 1 to 1000 km. ... Among the small planets of the Solarsystem Ikar is of grear interest. It was discovered in 1949, its diameter is about 1km. ...
... The orbit’s slope . 17,3° . Pluto is the ninth from the Sun big planet of the solarsystem. It was discovered by P. Lovell . ... Pluto differs from the other planet for it resembles the captured asteroid in the solarsystem (or two asteroids). ...
... 0,007 . The orbit’s slope . 3,4° . Venus is the second from the Sun and the nearest to the Earth planet of solarsystem. ... All of the solarsystem planets may boast their space "records". ...
... In heliocentric system appeared an opportunity of calculating real proportions of Solarsystem using the radius of the Earth's orbits as an astronomical unit. ...
... 1,85њ . Mars is the fourth from the Sun big planet of the Solarsystem. The equatorial radius of the planet is about 3394 km, the pole - 3376,4 km. ...