When is the longest blood moon eclipse of the 21st century? Or?

The longest total lunar eclipse of the 21st century is almost there. The digital world began its frenetic approach to the big event on Friday, July 27th.

It has already been christened "Blood Moon Eclipse", which is strange because every lunar eclipse is a blood moon. There was a total lunar moon eclipse on January 31st. There will be another one on January 19, 2019. There are up to three lunar eclipses per year.

Now, here is a much bigger note.

The eclipse on July 27 will not be visible in North America, which includes all of Pennsylvania.

With the exception of video streams and television, North Americans will see no part of the eclipse, which will be visible in Africa and Asia. , according to Noah Petro, NASA's Goddard Space Flight Center in Greenbelt, Maryland.

For those of us who are in the part of the world that will actually experience the eclipse, this is going to be a big problem. The total phase, when the reddish coloring covers the full moon face, will last 1 hour and 43 minutes, and the entire celestial event will last nearly 4 hours.

In the total phase of the event, the face of the moon will be reddish-brown to brown, as a portion of the sunlight pbading through the Earth's atmosphere leans around the planet falls on the surface of the moon. Our atmosphere will diffuse more light to shorter wavelength (green and blue), leaving more red light at longer wavelength to hit the moon.

The moon turns dark red or reddish brown during eclipses. dark. This is because some of the sunlight that flows through the Earth's atmosphere is bent around the edge of our planet and falls on the surface of the moon. The Earth's air also diffuses more light to shorter wavelengths (in colors such as green or blue); what remains is the longest, more red wavelength of the spectrum.

The biggest point of eclipse will arrive at 16:21, while the eclipse event will run from 3:30 to 5:13. and there will be times before and after when the moon will be part of the Earth's shadow. Including these penumbral periods, the eclipse will last about 3 hours and 55 minutes.

Unlike solar eclipses, no special protection is needed for the eyes when viewing a lunar eclipse. The latter can be viewed safely at the naked eye, using binoculars or telescopes.

Remember the excitement aroused by the solar eclipse of last year?