Summary

Each lunar day the Moon increases its angle from the Earth-Sun axis (which itself is moving) by 12 degrees. On Vaishaka-Krishna-Chaturdashi (14th), the Moon covers this distance within a single solar day; hence this day is a Kshaya tithi and is not marked on the lunisolar calendar. On Jyeshta-Shukla-Dashami (10th), the Moon covers this distance over the start of two solar days; hence this days is an Adhika tithi and is marked twice on the lunisolar calendar.

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

You are free:

• to share – to copy, distribute and transmit the work
• to remix – to adapt the work

Under the following conditions:

• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue