Note that Jerusalem time ( UTC) is used instead of sunset in all these calculations.
Years are counted since the creation of the world, which is assumed to have taken place in the autumn of 3760 BC.
The Hebrew calendar is a combined solar/lunar calendar, in that it strives to have its years coincide with the tropical year and its months coincide with the synodic months.
This is a complicated goal, and the rules for the Hebrew calendar are correspondingly fascinating.
This means that we have to allow for a margin of a day or two in the calculations, and this in turn means that we are left with quite a few possible dates.This astronomy calendar of celestial events contains dates for notable celestial events including moon phases, meteor showers, eclipses, oppositions, conjunctions, and other interesting events.Most of the astronomical events on this calendar can be seen with unaided eye, although some may require a good pair of binoculars for best viewing.Unfortunately, our website is currently unavailable in most European countries.We are engaged on the issue and committed to looking at options that support our full range of digital offerings to the EU market.