'2 ly' presentation slideshows

p.1

621 views • 52 slides

Stellar Magnitudes and Distances

542 views • 46 slides

shokabo.co.jp/.../star/molecule/orion.htm

Two Giant Molecular Clouds in Orion superimposed on the optical image. Just how big is this Giant Molecular Cloud?. www.shokabo.co.jp/.../star/molecule/orion.htm. ? Orionis. ? Orionis. ? Orionis. The Horsehead. Orion Nebula. ? Orionis. Millimetre Map of Orion

373 views • 36 slides

Our Place in Space

Our Place in Space. Where we are. We live on Earth. Welcome to Earf!. Earth orbits the Sun. The Earth is in the Solar System. The Solar System is the Milky Way. The Milky Way is a galaxy. We do not know what that is. Yet. A galaxy is a massive gravitationally bound system

402 views • 28 slides

Nucleus Positive charge Most of mass of atom

Inside the Nucleus. Electron Charge -1. Proton Charge +1. Neutron Charge 0. Nucleus Positive charge Most of mass of atom. Q. 65: What Holds the Nucleus Together?. The Strong Nuclear Force. At long distances, electric forces cause protons to repel

178 views • 16 slides

Scale of the Universe

154 views • 11 slides