A penumbral lunar eclipse occurs when the Sun, Earth, and the Moon are imperfectly aligned. When this happens, the Earth blocks some of the Sun’s light from directly reaching the Moon’s surface and covers all or part of the Moon with the outer part of its shadow, also known as the penumbra.
An eclipse of the moon can only happen at full moon, when the sun, Earth and moon line up in space, with Earth in the middle. At such times, Earth’s shadow falls on the moon, creating a lunar eclipse. Lunar eclipses happen a minimum of two times to a maximum of five times a year. There are three kinds of lunar eclipses: total, partial and penumbral.
In a total eclipse of the moon, the inner part of Earth’s shadow, called the umbra, falls on the moon’s face. At mid-eclipse, the entire moon is in shadow, which may appear blood red.
In a partial lunar eclipse, the umbra takes a bite out of only a fraction of the moon. The dark bite grows larger, and then recedes, never reaching the total phase.
In a penumbral lunar eclipse, only the more diffuse outer shadow of Earth falls on the moon’s face. This third kind of lunar eclipse is much more subtle, and much more difficult to observe, than either a total or partial eclipse of the moon.
Lunar eclipses can be visible from everywhere on the night side of the Earth, if the sky is clear. From some places the entire eclipse will be visible, while in other areas the Moon will rise or set during the eclipse.
Event UTC Time Time in Mumbai* Visible in Mumbai
Penumbral Eclipse begins 10 Jan, 17:07:44 10 Jan, 22:37:44 Yes
Maximum Eclipse 10 Jan, 19:10:02 11 Jan, 00:40:02 Yes
Penumbral Eclipse ends 10 Jan, 21:12:19 11 Jan, 02:42:19 Yes
* The Moon is above the horizon during this eclipse, so with good weather conditions in Mumbai, the entire eclipse is visible.