	Placidus or Regiomontanus methods for computing directions

	New rate keys

	Classical or Modern definitions of Converse

	Expert astrologers can now enjoy our revised and expanded the range of Primary Directions reports available through the Dynamic Reports feature.

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Solar Fire now has “Primary Zodiacal” directions as well as revamped “Primary Mundane”. Previously, Solar Fire computed Primary Directions according to the semi-arc technique promoted by Placidus. Solar Fire now allows you to choose between Placidus’ semi-arc projections and Regiomontanus’ preferred projections based on hour circles to determine mundane position.

	You may also notice that Solar Fire now computes Primary Directions to Radix much faster and enables several more “rate keys” available in the Preferences / Settings / “Progs/Dirns” tab including Cardan’s key (59 degrees 12 minutes),

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Placidus’ key (based on the true solar arc in Right Ascension), Solar Birthday Longitude (similar to Kepler’s key, but  longitude instead of right ascension), User-determined rate. Solar Fire has also added an option for the Classical Converse or the Modern Converse methods. These are two different approaches to computing converse Primary Directions.

	The Classical converse is computed. by switching the two points being compared, while the Modern converse (in use since the 19th century) is computed by reversing primary motion.