Stamp: The 50th Anniversary of Discovery of Planet Pluto (Benin 1980)
The 50th Anniversary of Discovery of Planet Pluto (Benin 1980)
02 April (Benin ) within release The 50th Anniversary of Discovery of Planet Pluto goes into circulation Stamp The 50th Anniversary of Discovery of Planet Pluto face value 70 West African CFA franc
| Stamp The 50th Anniversary of Discovery of Planet Pluto in catalogues | |
|---|---|
| Michel: | Mi: BJ 201 |
| Yvert et Tellier: | Yt: BJ 471 |
Stamp is square format.
Also in the issue The 50th Anniversary of Discovery of Planet Pluto:
- Stamp - The 50th Anniversary of Discovery of Planet Pluto face value 100;
- Stamp - The 50th Anniversary of Discovery of Planet Pluto face value 70;
Stamp The 50th Anniversary of Discovery of Planet Pluto it reflects the thematic directions:
A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant planets Jupiter, Saturn, Uranus, and Neptune. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk. Planets grow in this disk by the gradual accumulation of material driven by gravity, a process called accretion.
