The idea came from this, and most of the astronomical code is from the original moontool
This one I actually wrote (although, heavily adapted from the original moontool code)
-f formatting specifiers:
| character | definition | example |
|-----------+-----------------------------+-----------------|
| %a | Age (Days since new moon) | 15.20 |
| %e | Emoji (Northern Hemisphere) | 🌘 |
| %s | Emoji (Southern Hemisphere) | 🌒 |
| %J | Julian Day | 2460494.401019 |
| %N | Phase Number | 5 |
| %P | Illuminated Percent | 10% |
| %p | Phase name | New |
| %% | percent sign | % |
| %n | Newline | \n |
| %t | Tab | \t |
From Here Originally Written by John Walker
phoon is a program to display the PHase of the mOON. Unlike other such programs, phoon shows you the phase First written in Pascal /TOPS-20 at CMU in 1979; Then translated it to Ratfor/Software Tools in 1981; and now it's in C/Unix.
From Here Originally Written by John Walker
A simple test of the date parsing stuff, practically a debug tool