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Astro*Dictionary by Michael Erlewine

 

 

 

 

3 articles for "Speculum"

Speculum [Astro*Index]

1. A table appended to an astrological chart, comprising its astronomical elements: Right Ascension, Declination, Ascensional Difference, Semi-Arc, Latitude. It is used in computing Primary Directions.

2. A Mirror made of polished metal, usually gold or silver; thus, a mirrored lens in a telescope or other optical instrument.

See also: ♦ Right Ascension ♦ Declination ♦ Ascensional Difference ♦ Semi-arc ♦ Latitude ♦ Primary Directions
Speculum [Munkasey M.]

A term used in Primary Directions to denote the table computed to hold the Planet's RA, AD, OD, OA, Q, and W values.

See also: ♦ Right Ascension ♦ Declination ♦ Ascensional Difference ♦ Semi-arc ♦ Latitude ♦ Primary Directions
Speculum [DeVore]

A table appended to a horoscope, comprising its astronomical elements: the planets' latitude, declination, Right Ascension, Ascensional Difference, Pole and Semi-arc. It is employed in the practice of directing by Primary Directions (q.v.) as taught by Ptolemy.

See also: ♦ Right Ascension ♦ Declination ♦ Ascensional Difference ♦ Semi-arc ♦ Latitude ♦ Primary Directions

 

Astro*Index Copyright © 1997 Michael Erlewine