Planisphere - Meaning, Definition & English Examples
A planisphere is a rotating star chart that shows the visible stars and constellations for any date and time. It helps astronomers and stargazers locate celestial objects in the night sky.
Definition:
A map projection of the celestial sphere onto a flat surface, showing stars and constellations.
Synonyms:
star chart, celestial map, sky map
Part of Speech:
noun
Antonyms:
globe, sphere
Common Collocations:
astronomical planisphere, rotating planisphere, night sky planisphere
Derivatives:
planispheric, planispherical
Usage Tips:
Use "planisphere" to refer to a flat star map; ensure context relates to astronomy or stargazing.
Common Phrases:
celestial navigation tool, star-finding aid, sky guide
Etymology:
From Latin "planus" (flat) + Greek "sphaira" (sphere), meaning a flat representation of a sphere.
Examples:
- 1. The planisphere helps beginners identify stars at night.
- 2. She bought a rotating planisphere for her astronomy class.
- 3. The planisphere displays visible constellations for any date and time.
- 4. He used the planisphere to locate Jupiter in the sky.