12 April (Czechoslovakia ) within release Space Research goes into circulation Stamp Yuri A. Gagarin face value 5 Czechoslovakian koruna
Stamp Yuri A. Gagarin in catalogues | |
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Michel: | Mi:CS 2137 |
Yvert et Tellier: | Yt:CS 1982 |
POFIS: | POF:CS 2025 |
Stamp is square format.
Also in the issue Space Research:
Data entry completed
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Stamp Yuri A. Gagarin in digits | |
Country: | Czechoslovakia |
Date: | 1973-04-12 |
Perforation: | comb 11¾ |
Format: | Stamp |
Face Value: | 5 Czechoslovakian koruna |
Print run: | 450000 |
Stamp Yuri A. Gagarin it reflects the thematic directions:
Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270 °C; −455 °F)