12 December (Ghana ) within release Planets & The Sun (2024) goes into circulation Mini Sheet Planets face value 6*12 Ghanaian new cedi
Mini Sheet Planets in catalogues | |
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Colnect codes: | Col: GH 2024.12.12-01 |
Mini Sheet is square format.
Also in the issue Planets & The Sun (2024):
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Mini Sheet Planets in digits | |
Country: | Ghana |
Date: | 2024-12-12 |
Print: | Offset lithography |
Emission: | Agency Issue |
Format: | Mini Sheet |
Face Value: | 6*12 Ghanaian new cedi |
Mini Sheet Planets 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. .
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.