You can do the following calculations:

• calculation of natal chart and varga charts;
• calculation of bala: Ashtakavarga, Rashi bala, Graha bala;
• calculation of dasha: Vimshotari, Ashtottari;
• calculation Panchanga: Nakshatra, Yoga, Tithi, Vara, Karana;
• calculation of Muhurta and Hora;
• calculation of various yogas: Dhana yoga, Raja yoga, Mahapurusha yoga etc.

Jyotish library requires PHP 5.6 or later and Swiss Ephemeris.

The files in this library are released under the GNU General Public License version 2 or later.

To test Jyotish library, a demo website is online: jyotish.su, or visit social dating service abboom.com

Most of the calculations are based on the following books:

• Maharishi Parashara. Brihat Parashara Hora Shastra.
• Maharishi Jaimini. Jaimini Upadesha Sutras.
• Varahamihira. Brihat Jataka.
• Varahamihira. Brihat Samhita.
• Kalyana Varma. Saravali.
• Satyacharya. Satya Jatakam.
• Kalidas. Uttara Kalamritam.
• Venkatesh Sharma. Sarvarth Chintamani.
• Mantreswara. Phaladeepika.
• Vaidyanatha Dikshita. Jataka Parijata.
• Srimad-Bhagavatam.
• Bhavishya Purana.
• Surya Siddhanta.
• Manu-Samhita.