celestial sphere

(redirected from Celestial hemisphere)
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Related to Celestial hemisphere: Celestial coordinate system
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  • noun

Synonyms for celestial sphere

the apparent surface of the imaginary sphere on which celestial bodies appear to be projected

References in periodicals archive ?
All that did, once, exist was a celestial hemisphere filled with a layer of fire at its periphery: a layer of fire that was soon transmuted into what are now the stars - including, probably, the 'wandering' stars or planets(37) - and our sun.
In late 1995, Hubble stared at a small patch of sky in the northern celestial hemisphere for 2 weeks, and in 1998 it did the same in the southern hemisphere.
His Coelum Stellatum Christianum populated the northern celestial hemisphere with New Testament figures like Mary Magdalene (Cassiopeia), St.
Astronomers expect that when the $77 million Sloan survey is completed, 5 to 7 years from now, it will have generated the first three-dimensional map of the northern celestial hemisphere.
Suddenly, all large telescopes that could gaze at the southern celestial hemisphere - including the AAT - were devoted to tracking the evolution of this burned-out star.
Camelopardalis contains NGC 2403, one of the brightest galaxies in the northern celestial hemisphere that don't have Messier numbers.
Covering a swath at least 650 million light-years long and 100 million light-years wide in the northern celestial hemisphere, this quasar cluster is only the third identified so far.
260), they capture a greater slice of the Milky Way in the northern celestial hemisphere.
Naval Academy), George Hau (Pontifica University of Chile), and Michael Irwin (University of Cambridge) have been poring over photographs of the entire southern celestial hemisphere in search of faint smudges that might be nearby dwarf galaxies.
Using a sequence of photographs of the southern celestial hemisphere taken by the UK Schmidt telescope at Siding Springs Observatory in New South Wales, Australia, the team picked out images of distant galaxies and discarded those of individual stars with the help of a computerized scanning machine.
One hundred thousand quasar redshifts are expected from the Sloan Digital Sky Survey (SDSS), an ambitious five-year project that aims to chart one-quarter of the celestial hemisphere with a 2.
Guided by a two-dimensional map made in the 1960s, Geller and Huchra have mapped more than 11,000 galaxies in a wedge of the northern celestial hemisphere, measuring the redshift of each galaxy brighter than magnitude 20.
Some of the sky's richest treasures are located far down in the south celestial hemisphere and best seen from locations below the Equator.
If you took an extremely out-of-focus photograph of the whole sky to match our foldout chart at right, the celestial hemisphere above us might resemble a waxing crescent Moon.