- declination circles
- астр.• кръг на склонение
English-Bulgarian polytechnical dictionary . 2013.
declination circles
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Declination — For other uses, see Declination (disambiguation). In astronomy, declination (abbrev. dec or δ) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is… … Wikipedia
Circles of longitude — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
declination circle — noun : one of the setting circles of an equatorial mounting fastened to the declination axis to indicate the declination to which the telescope is pointing … Useful english dictionary
Setting circles — on an equatorial fork mounted telescope Setting circles are used on telescopes equipped with an equatorial mount to find astronomical objects in the sky by their equatorial coordinates often used in star charts or ephemeris … Wikipedia
Circle of declination — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
Druidical circles — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
Horary circles — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
The Circles of the Holy Roman Empire — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
Parallel of declination — Parallel Par al*lel, n. 1. A line which, throughout its whole extent, is equidistant from another line; a parallel line, a parallel plane, etc. [1913 Webster] Who made the spider parallels design, Sure as De Moivre, without rule or line ? Pope.… … The Collaborative International Dictionary of English
parallel of declination — one of the small circles of the celestial sphere that is parallel to the celestial equator * * * parallel of declination, Astronomy. any imaginary circle whose plane is parallel to the celestial equator … Useful english dictionary
Planisphere — For the tetralogy of songs by Justice, see Justice discography. A plastic planisphere. A planisphere is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the… … Wikipedia
