Rotation of the Moon

Notices

• B₀ and L₀ are selenographic latitude and longitude of the sub-Earth point, respectively. B_s and L_s are selenographic latitude and longitude of the sub-solar point, respectively.
• P and P_s are the position angle of the lunar rotation axis (North Side) and the sub-solar point, respectively, as seen from the Earth and measured from celestial north, positive being eastward and negative being westward.
• i is the phase angle and k is the fraction illuminated.
• Limitation of one calculation is either 370 days or 400 cycles.
• Related Contents
  • Glossary (Ephemeris)
• No Daylight Saving Time considered.
• We might modify this program without notice (ver.1.0f).