Version 4.9.1

Use \Carbon\Carbon everywhere in the code

Version 4.9

Add methods to calculate the equatorial coordinates of the sun.

Version 4.8

Add methods to calculate the apparent place of a star, using the Ron-Vondrák expression. The calculations take into account the perturbations caused by the planets, the precession and the nutation.

Version 4.7

Added

• Add precession method for EquatorialCoordinates to calculate the precession for a given date with low accuracy. The proper motion of the star is taken into account for the calculation of the precession.
• Add precessionHighAccuracy for EquatorialCoordinates method to calculate the precession for a given date with high accuracy. The proper motion of the star is taken into account for the calculation of the precession.
• Add precessionHighAccuracy for EclipticalCoordinates method to calculate the precession for a given date with high accuracy. The proper motion of the star is not taken into account for the calculation of the precession.

Changed

• The constructor of the EquatorialCoordinates class now also takes the epoch of the coordinate as argument. If the epoch is not given, the standard epoch of 2000.0 is taken.
• The constructor of the EquatorialCoordinates class now also takes the proper motion (in RA and in dec) as arguments. If the proper motion is not given, the value of 0.0 is taken.

Version 4.6

Calculate smallest circle containing three celestial bodies.

Version 4.5

Added methods to check if three bodies are in a straight line and to calculate the deviation from a straight line.

Version 4.4

Added method to calculate the angular separation between two equatorial coordinates.

Version 4.3

• Added methods to calculate the refraction for given horizontal coordinates.

Version 4.2

• Added view with the length of the night at a given location.
  

Version 4.1

• Added view with the altitude of the target during the night.