28 janv. 2019 - Sun
Description:
1. The sun makes up more than %99.8 of our solar system’s mass2. 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
Ajouté au bande de temps:
Date:
28 janv. 2019
Maintenaint
~ Il y a 5 ans et 4 mois
