Jan 10

Blood Moon January 20th

In a few days we will have a nice treat to view from here in the Quad Cities. Beginning at 8:35pm the Full Moon will begin to move through the shadow cast by the Earth ultimately resulting in a Total Lunar Eclipse. A Total Lunar Eclipse are typically refered to as a Blood Moon due to the dark red or coppery appearance of the Moon whilst within the deepest part of the Earth’s shadow which is called the Umbra.   The above diagram from NASA gives you an idea of what’s actually happening. When the Moon enters the Penumbra, a dimming of the Moon’s surface can be observed as the edge of the shadow advances. This point is called Penumbra first contact and begins the Partial phase of the eclipse. If the Moon were to pass only through the Penumbra of the Earth this would be a partial eclipse and nothing more. But this month the Moon will make it into the deeper Umbra of the Earths shadow. Then the deeper portion of the shadow begins to cross the surface it is called (you guessed it) Umbral first contact and this begins the Total phase of the eclipse. When the […]

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