The Umbra is the zone of a total solar eclipse, where the moon will completely block out the sun's light. The last total solar eclipse for the United States was almost 40 years ago. Eclipse enthusiasts say this phenomenon is one of the most spectacular sights in nature. Only part of the Moon comes under the Earth's shadow, and looks darker.
People in India will see the Penumbral and Partial lunar eclipse on Monday night.
By the time the eclipse reaches Stephenville, around 11:38 a.m., only some 70 percent of the sun's rays will be blocked, making it extremely important that observers use a special-purpose, safe solar filter for viewing.
A partial lunar eclipse is pictured beside a building in Berlin, Germany.
According to greatamericaneclipse.com, another 1.8 to 7.4-million people will travel into the path on August 21. Even though the region won't be in the path of totality, the eclipse will be very visible throughout the Meeting of the Great Rivers (weather permitting, of course!). "For Kolkata the moonrise will be around 5.58pm and it will be setting on 4.34am next day", Duari said.
The penumbral part of the lunar eclipse, which is hard to discern, began at 9:20 pm, while the partial phase would start at 10:52 pm, she said. A fairly wide area of the country will receive a partial shadow, called the Penumbra, while a narrow area will get a full shadow, called the Umbra.
Only a small fraction of the moon will come under the Earth's shadow at maximum eclipse.
The next partial lunar eclipses are expected to occur in July 2019, Nov 2021 and Oct 2023. "It's also the first continent-wide eclipse to be visible only from the United States since 1776".
"This leads to the partial phase when it looks like someone is taking increasingly large bites from the sun".
One enduring myth is that solar radiation during an eclipse can harm pregnant women and their expectant children.
Tabung Haji staff and the media also took the opportunity to witness and take photos of the rare event.