It is the scientific name by which the cosmic spectacle is known in which the Sun and the Moon can be observed at the same time during an eclipse of the Moon. This phenomenon can only be witnessed before sunset or just after sunrise.
When a selenelion occurs, the two celestial bodies appear just above the horizon at nearly opposite points in the sky . Although the moon is in the umbra of the Earth, the Sun and our satellite can be seen at the same time because the refraction of light through the planet's atmosphere causes each of them to show up in the sky in its true geometric position.
This strange total and horizontal lunar eclipse will occur on Wednesday, October 8 and can only be seen in the Pacific and the east coast of the United States, but in Spain and Europe, anyone who wishes can see it online through virtualtelescope .eu / webtv /.
The selenelion will last approximately between 2 and 9 minutes , depending on where it is observed, and it also symbolizes the second part of the "four blood moons" that began last April.
