Online Solar Eclipse

Online

The last solar eclipse of 2020 will be on Monday December 14th and is going to be only visible from Southern America. Behold that OCA in collaboration with Prof. Elizabeth Villanueva and her students from Colegio Alberto Pérez has arranged for an international live broadcast of the event. The program will be held from the […]

First “Christmas Star” in 800 years

This December 21st, on the winter solstice, Jupiter and Saturn will be their "closest" in 800 years.  Not since the Middle Ages has this close encounter between these two planets occurred.  The event will occur 45 minutes after sunset in the southwest and will result in a spectacular view!  Get out your cameras!!

Earth’s Perihelion

At 5:30am, the Earth will reach its perihelion—the point on its orbit that is closest to the Sun.

March (Spring) Equinox

The March equinox is the first day of spring in the Northern Hemisphere and the start of fall in the Southern Hemisphere by astronomical definitions