Stamp: Left (El Salvador 1991)
Left (El Salvador 1991)
17 December (El Salvador ) within release Total Eclipse of the Sun goes into circulation Stamp Left face value 70 Salvadoran centavo
| Stamp Left in catalogues | |
|---|---|
| Michel: | Mi: SV 1863 |
Stamp is square format.
Also in the issue Total Eclipse of the Sun:
- Stamp - Left face value 70;
- Stamp - Right face value 70;
- Se-tenant - Total Eclipse of the Sun, 11 July 1991 face value 2*70;
Stamp Left it reflects the thematic directions:
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. .
