Stamp: Pioneer A (Cameroun 1967)
Pioneer A (Cameroun 1967)
01 January (Cameroun ) within release Space goes into circulation Stamp Pioneer A face value 25 Central African CFA franc
| Stamp Pioneer A in catalogues | |
|---|---|
| Michel: | Mi:CM 502 |
Stamp is square format.
Also in the issue Space:
- Stamp - Pioneer A face value 25;
- Stamp - Ranger VI face value 50;
- Stamp - Luna IX face value 100;
- Stamp - Luna X face value 250;
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Data entry completed
50%
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|---|---|
| Stamp Pioneer A in digits | |
| Country: | Cameroun |
| Date: | 1967-01-01 |
| Perforation: | 13 |
| Emission: | Air Mail |
| Format: | Stamp |
| Face Value: | 25 Central African CFA franc |
Stamp Pioneer A it reflects the thematic directions:
The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have over time synchronized the Moon's orbital period (lunar month) with its rotation period (lunar day) at 29.5 Earth days, causing the same side of the Moon to always face Earth. The Moon's gravitational pull – and to a lesser extent, the Sun's – are the main drivers of Earth's tides.
A spacecraft is a vehicle that is designed to fly and operate in outer space. Spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. All spacecraft except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket).
