Se-tenant: Meteorological Observatory Potsdam (Germany, Democratic Republic 1968)
Meteorological Observatory Potsdam (Germany, Democratic Republic 1968)
24 January (Germany, Democratic Republic ) within release Observatory goes into circulation Se-tenant Meteorological Observatory Potsdam face value 30 East German pfennig
| Se-tenant Meteorological Observatory Potsdam in catalogues | |
|---|---|
| Michel: | Mi: DD WZd186 |
Se-tenant is square format.
Also in the issue Observatory:
- Stamp - Aktinometer face value 10;
- Stamp - Weather Satellite face value 20;
- Stamp - Influence of weather on agriculture face value 25;
- Se-tenant - Meteorological Observatory Potsdam face value 35;
- Se-tenant - Meteorological Observatory Potsdam face value 55;
- Se-tenant - Meteorological Observatory Potsdam face value 30;
- Se-tenant - Meteorological Observatory Potsdam face value 45;
- Se-tenant - Meteorological Observatory Potsdam face value 55;
Se-tenant Meteorological Observatory Potsdam it reflects the thematic directions:
An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysics, oceanography and volcanology are examples of disciplines for which observatories have been constructed
The Sun, also known as Sol, is a star at the center of the solar system. It is a white star that gives off different types of energy such as infrared energy (heat), ultraviolet light, radio waves and light. It also gives off a stream of particles, which reaches Earth as "solar wind". The source of all this energy is nuclear fusion. Nuclear fusion is the reaction in the star which turns hydrogen into helium and makes huge amounts of energy. It is a nearly perfect ball of hot plasma.
