Celestial Globe


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celestial globe

[sə′les·chəl ′glōb]
(astronomy)
A small globe representing the celestial sphere, on which the apparent positions of the stars are located. Also known as star globe.

Celestial Globe

 

a globe depicting the celestial sphere with a network of equatorial coordinates and with the ecliptic and the brightest stars. It is usually fitted within two mutually perpendicular rings that are marked off in degrees, which depict the horizon and meridian of a given location. The globe’s axis of rotation can be fixed at any angle to the plane of the horizontal ring. Thus the globe can be placed in such a way as to depict the position of the celestial sphere for a given location at any moment. The celestial globe is used in solving problems of spherical astronomy related to the diurnal and annual motions of the earth.

References in periodicals archive ?
Their spheres show the earth as a terrestrial globe (appropriate to Ptolemy whose works were accompanied by superb land maps) and a celestial globe (for Strabo, whose writings open with celestial considerations, their Renaissance versions unaccompanied by land maps).
Caption: WINDOW TO THE UNIVERSE The aluminum panels on the interior of the dome were custom-printed with mirror-reversed images from Vincenzo Coronelli's celestial globe.
Twelve ceiling compartments were to have the forty-eight Ptolemaic constellations, and hinged central compartments could be opened so that terrestrial and celestial globes would descend.
The final section, "Connaissance du monde, vanite du monde: le globe, image du savoir, image de la Creation," by Catherine Hofmann and Eve Netchine, develops the iconographic tension between the perfect yet ephemeral sphere and the unity of human knowledge symbolized by terrestrial and celestial globes. (This section opens, however, with a different sort of tension: the color reproduction of Vermeer's The Astronomer has been reversed.
Hevelius drew his charts mirror-reversed as if on a celestial globe. Above, the constellations are reversed again to match the stars as seen from the ground.
celestial globe a far-northern constellation (now defunct) called Custos
Globes are also included: globes of the Moon, Mars and Venus and a celestial globe are recent acquisitions, as well as the large globe of Earth.
Near Camelopardalis was one called Custos Messium ("Harvest Keeper")--perhaps a tribute to comet hunter Charles Messier during his lifetime, for it first appeared on a French celestial globe in 1779.
REINING STAR Coming up from behind, Perseus (top) is putting the pressure on Auriga, the Charioteer (bottom), on this replica of the celestial globe of the Farnese Atlas displayed at the Museum of Roman Civilization in Rome.
The stars' patterns and corresponding constellation figures, however, were still depicted mirror-reversed, as if viewed on a celestial globe.