Stamp: Rudolf Bosscha, Founder (Indonesia 2023)
Rudolf Bosscha, Founder (Indonesia 2023)
04 February (Indonesia ) within release Bosscha Observatory, Centenary (2023) goes into circulation Stamp Rudolf Bosscha, Founder face value 5,000 Indonesian rupiah
| Stamp Rudolf Bosscha, Founder in catalogues | |
|---|---|
| Colnect codes: | Col: ID 2023.02.04-01a |
Stamp is square format.
stamp from se-tenant pairAlso in the issue Bosscha Observatory, Centenary (2023):
- Stamp - Aliens Viewing Earth face value 5,000;
- Stamp - Aliens Viewing Earth face value 10,000;
- Se-tenant - Bosscha Observatory, Centenary face value 3*5000;
- Souvenir Sheet - Bosscha Observatory, Centenary face value 3*10000;
- Stamp - Observatory Telescope face value 5,000;
- Stamp - Observatory Telescope face value 10,000;
- Stamp - Rudolf Bosscha, Founder face value 5,000;
- Stamp - Rudolf Bosscha, Founder face value 10,000;
Stamp Rudolf Bosscha, Founder 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 telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation.Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope. Nowadays, the word "telescope" is defined as a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors.
