Lunar Eclipes

What is a lunar eclipse?

A lunar eclipse is when the Earth comes between the Sun and the Moon causing a shadow of Earth onto the Moon. The shadow can partially or totally cover the Moon, giving us partial and total eclipses.

What are diferent typse of eclipses?

There are solar eclipses, where the Moon passes in front of the Sun: total solar, partial solar, annual solar, and hybrid solar.

There are also lunar eclipses, where the Moon passes through the Earth's shadow: total lunar, partial lunar, and penumbral lunar.

Where and when do lunar eclipses occur?

Lunar eclipses occur everywhere on the Earth, but can only be observed anywhere on the night side of the Earth. Eclipses only occur during an eclipse season, when the sun is close to either the ascending or descending node of the Moon. The Sun, Earth, and Moon must all be aligned for an eclipse to occur.

How often do eclipses happen?

Each eclipse season lasts for about 34 days and repeats just short of six months. Thus there are always two seasons each year with up to 2-3 lunar eclipses during each season. Total lunar eclipses come in clusters with 2 or 3 happening in a year or year and a half's time, which is then followed by a 2 to 3 year break before occuring again. Partial eclipses can occur 3 times within a year or not at all.

What is a blood moon?

It's a total lunar eclipse with a coppery red color. This occurs when the Earth's atmoshere strongly scatters the light with shorter wavelengths from all of the Earth's sunrises and sunsets and refracts light with a red hue onto the face of the moon at mid-eclipse.

What is some interesting history of lunar eclipses?

On August 28, 412B.C, a lunar eclipse helped turn the tide of battle betweeen the Syracuseans and the Athenians during the Peloponnesian War. Syracuse was heavily under seige by the Athenians, but during the Second Battle of Syracuse, an eclipse occured causing the supersititous Athenians to remain in the harbor exposed and unprotected, which led to their defeat.