Lunar eclipse
This can be seen in different exposures of a partial lunar eclipse, for example here with exposures of 1/80, 2/5, and 2 seconds.
A lunar eclipse occurs when the Earth passes between the Sun and the Moon
A lunar eclipse is an astronomical phenomenon. It happens when the moon passes through the shadow of the Earth. Lunar eclipses happen about twice a year, unlike total solar eclipses that are sometimes more than a year apart. They can be seen from a much larger portion of the Earth compared to solar eclipses. Lunar eclipses can last for a few hours, but total solar eclipses last only a few minutes.
During a lunar eclipse, the Moon looks red brown. It may be thought that the Moon is completely black because of the Earth's shadow, but no. The reddish-brown colour is because some of the Sun's light bends through the Earth's atmosphere and shines on the Moon. Refraction is greater for red light rays than for others, so red is what strikes the Moon.
Like solar eclipses, there are different types of lunar eclipses. There are total eclipses, where the moon passes completely through Earth's shadow and all of the moon appears reddish-brown. A partial eclipse occurs when only part of the moon passes through Earth's shadow and so only part of the moon appears reddish.
Lunar eclipses are safe to view with your naked eyes and also with telescopes.
Although it is safe to see the lunar eclipse with your naked eyes one should never see a solar eclipse with the naked eyes as the rays damage the retina of the eye.
A lunar eclipse occurs when the moon enters the shadow of the earth, while revolving around it. At this time, it is necessary that the earth is between the sun and the moon, and all three of them are in the same plane. On a full moon day, the moon's path of revolution passes thought the thick shadow of the earth.
If the moon is totally hidden within the shadow, we see a total lunar eclipse and if only a part of the moon is in the shadow, we see a partial lunar eclipse.
 |
Wikimedia Commons has media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value).. |
Lunar Eclipse Media
Composite image of the April 2014 total lunar eclipse from Charleston, West Virginia, United States
A schematic diagram of the shadow cast by Earth. Within the umbra, the central region, the planet totally shields direct sunlight. In contrast, within the penumbra, the outer portion, the sunlight is only partially blocked. (Neither the Sun, Moon, and Earth sizes nor the distances between the bodies are to scale.)
Latter phases of the partial lunar eclipse on 17 July 2019 taken from Gloucestershire, United Kingdom
Timelapse of the total lunar eclipse on 4 March 2007.
October 2014 lunar eclipse viewed from Minneapolis during sunrise on 8 October 2014. Both the Moon and Sun were visible at that time.
Contact points relative to the Earth's umbral and penumbral shadows, here with the Moon near is descending node
The Moon does not completely darken as it passes through the umbra because Earth's atmosphere refracts sunlight into the shadow cone.
astrological symbol for lunar eclipse, 🝶
