01 January (Cinderellas ) within release Sahara Occ. goes into circulation Stamp 350th Anniversary of Death of G. Galile - Telescope to Obse… face value 15 Sahrawi peseta
Stamp 350th Anniversary of Death of G. Galile - Telescope to Obse… in catalogues | |
---|---|
Colnect codes: | Col:EH 1992093 |
Stamp is square format.
Also in the issue Sahara Occ.:
Stamp 350th Anniversary of Death of G. Galile - Telescope to Obse… it reflects the thematic directions:
An anniversary is the date on which an event took place or an institution was founded in a previous year, and may also refer to the commemoration or celebration of that event. For example, the first event is the initial occurrence or, if planned, the inaugural of the event. One year later would be the first anniversary of that event. The word was first used for Catholic feasts to commemorate saints. Most countries celebrate national anniversaries, typically called national days. These could be the date of independence of the nation or the adoption of a new constitution or form of government. The important dates in a sitting monarch's reign may also be commemorated, an event often referred to as a "Jubilee".
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. .