enhancement - determine azimuth and altitude / right ascension and declination

[johndpope]

Astronomy coordinate conversion. Conversion among equatorial coordinate (right ascension and declination), horizontal coordinate (azimuth and altitude) and their corresponding Cartesian equivalents
Calculate Julian Date and Local sidereal time.
Matrix / Quaternion transformation from celestial coordinate system to local tangent plane. Supports North-East-Down coordinate from earth-centered, earth-fixed coordinate system for any given longitude, latitude and timestamp.

@DJBen - has created this project - which successfully does all this.
I wonder if swiftAA can't do this out of the box?
https://github.com/DJBen/SpaceTime

[onekiloparsec]

Hi. I replied in the SwiftAA associated issue, but SwiftAA does this out of the box (and much more).

As for the RA/Dec conversion into Alt/Az check the makeHorizontalCoordinates method of the EquatorialCoordinates class.