A Blue-Banded Blood Moon

What causes a blue band to nasty the Moon one day of a lunar eclipse? The blue band is accurate but in most cases quite laborious to opinion. The featured HDR disclose of ultimate week’s lunar eclipse, then again — taken from Yancheng, China — has been digitally processed to equalize the Moon’s brightness and exaggerate the colors. The grey color of the bottom beautiful is the Moon’s natural color, straight away illuminated by sunlight. The upper left share of the Moon is circuitously lit by the Sun because it’s being eclipsed — it within the Earth’s shadow. It is faintly lit, although, by sunlight that has handed deep via Earth’s atmosphere. This share of the Moon is purple — and known as a blood Moon — for the same reason that Earth’s sunsets are purple: on legend of air scatters away extra blue light than purple. The queer blue band is a form of — its color is created by sunlight that has handed high via Earth’s atmosphere, the place purple light is finest absorbed by ozone than blue. A total eclipse of the Sun will occur this weekend but, sadly, totality be visible handiest shut to the Earth’s South Pole. Nearly Hyperspace: Random APOD Generator