Stamp: Halley's Comet, woodcut, Nurnberg Chronicle (Aitutaki 1986)
Halley's Comet, woodcut, Nurnberg Chronicle (Aitutaki 1986)
25 February (Aitutaki ) within release Halley's Comet goes into circulation Stamp Halley's Comet, woodcut, Nurnberg Chronicle face value 95 Cook Islands cent
| Stamp Halley's Comet, woodcut, Nurnberg Chronicle in catalogues | |
|---|---|
| Michel: | Mi:CK-AI 578 |
Stamp is square format.
Also in the issue Halley's Comet:
- Stamp - Halley's Comet, woodcut, Nurnberg Chronicle face value 90;
- Stamp - Halley's Comet, tapestry from Bayeux face value 1.25;
- Stamp - Halley's Comet, illustration, Luzern Chronicle face value 1.75;
- Stamp - Halley's Comet, woodcut, Nurnberg Chronicle face value 95;
- Stamp - Halley's Comet, tapestry from Bayeux face value 95;
- Stamp - Halley's Comet, illustration, Luzern Chronicle face value 95;
- Souvenir Sheet - Halley's Comet face value 285;
- Souvenir Sheet - Melencolia, by Albrecht Dürer face value 4.20;
Stamp Halley's Comet, woodcut, Nurnberg Chronicle it reflects the thematic directions:
A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitationally unbound atmosphere or coma surrounding the nucleus, and sometimes a tail of gas and dust gas blown out from the coma. These phenomena are due to the effects of solar radiation and the outstreaming solar wind plasma acting upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of kilometers across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up to 15 times Earth's diameter, while the tail may stretch beyond one astronomical unit. If sufficiently close and bright, a comet may be seen from Earth without the aid of a telescope and can subtend an arc of up to 30° (60 Moons) across the sky. Comets have been observed and recorded since ancient times by many cultures and religions.
