/sci/ - Science & Math

>>14700094
>are those the only ones that ever happen or are there any "off cycle" eclipses
Don't know if you still want this answered. Other cycles exist but all solar and lunar eclipses will be found within one of the 40 some active Saros cycles as its length is basically a integer multiple of three types of different lunar months which need to align correctly for an eclipse to happen. These are the synodic month, the anomalistic month, and the draconic month. Once an eclipse happens you can predict with certainty when and where a near identical eclipse will happen 18 years later, 120 degrees to the west and roughly 300 km north or south, depending on which pole the cycle started at.