28 янв 2019 г. - Sun
Описание:
1. The sun makes up more than %99.8 of our solar system’s mass
2. The sun is about %70 hydrogen.
3. It’s period of rotation is 24 days
4.Most of the energy released by the Sun's core is nuclear energy.
5. It travels at 220km per second
Добавлено на ленту времени:
Дата:
Изображения:
![]()