- optical double (star)
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optical double (star) or optical doublen.DOUBLE STAR (sense 2)
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Universalium. 2010.
optical double (star)
Look at other dictionaries:
optical double (star) — or optical double n. DOUBLE STAR (sense 2) … English World dictionary
optical double (star) — or optical double n. DOUBLE STAR (sense 2) … English World dictionary
optical double star — noun also optical double or optical pair : double star 2 compare physical double star … Useful english dictionary
optical double star. — See under double star. * * * … Universalium
optical double star. — See under double star … Useful english dictionary
double star — Astron. two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star), or those… … Universalium
optical double — noun see optical double star … Useful english dictionary
double star — n. 1. BINARY STAR 2. two stars, along the same line of sight, that look like one star, or a binary star, but actually are very distant and physically unrelated; optical double … English World dictionary
physical double star — noun also physical double : binary star compare optical double star … Useful english dictionary
Double star — For other uses, see Double star (disambiguation). In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because… … Wikipedia
