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Our complete guide for July 2019 Total Solar Eclipse



This image combines many exposures of different durations taken to reveal aspects of the widely viewed total solar eclipse of August 21
, 2017, from the moon to the sun corona. Image Credit: ESO / P. Horalek / Solar Winds Sherpas Project.

You couldn't order a geekier solar eclipse from the cosmos. Next Tuesday 2 July nd begins the second of three eclipse seasons in 2019, with the only total solar eclipse of the year spanning the southern tip of South America, including the nations of Chile and Argentina. However, as an extra special part of the play, the overall path to the eclipse passes just above the La Silla observatory complex in the Atacama Desert.

The Circumstances of the Eclipse

You can remember the last time that the Moon's umbrella shadow adorned the Earth's surface, in the great American eclipse on August 21, st 2017, which crossed the United States. The millions testify to how many new umbraphiles were coined on the day dedicated enough to darken to go down to South America next week. Total for this has a decent length of maximum duration of 4 minutes, 33 seconds as the shadow crosses over the middle of the Pacific.

July 2, eclipse, in motion. Credit: NASA / GSFC / A.T. Sinclair.

This particular eclipse is member 58 of the 82 eclipses in Saros 127, which started back in 991 AD. and ending March 21, st 2452. This particular saros will stop producing total solar eclipses at the end of this century with the final off the Antarctic coast marking your calendars – August 15, 19459009th 2091. Another member of the same same saroserie (number 51) crossed South America on April 16 th in 1893, early in the eclipse photography era. Astronomer John Martin Schaeberle discovered a rare comet near the sun during this eclipse.

An image from the 1893 eclipse. Public Domain image.

Total timeline

Partial phases of the eclipse begin at. 16:55 Universal Time (UT), and the totality begins when the lunar umber touches 1,000 kilometers northeast of New Zealand at. 18:01 UT. The shadow then runs across the Pacific Ocean, jumping its way between the Pitcairn Islands before finally making landfalls 300 kilometers north of Santiago, the capital of Chile around 20:38 UT. The dramatic climax of the eclipse then concludes when the shadow sweeps over the Andes to Argentina and south of Cordoba and the great city of Buenos Aires (population: 2.9 million) for a fine end to totality approaching sunset.

This is mostly a remote control, although several cruise ships are likely to face the shadow of the Moon at sea. Partial phases will cover the whole of South America except the northernmost part, along with the southern coast of Central America. Some good locations around the region to capture the partial eclipse (with maximum obscuration and the time of maximum subphase) include: Easter Island (75%, 19:21 UT), Galapagos Islands (35%, 20:14 UT), Machu Picchu ( 50%, 20:45 UT), Lake Titicaca (65%, 20:45 UT) and the great old Quito observatory in Ecuador (30%, 20:35 UT).

Never look directly at the Sun during the partial phases of a solar eclipse, and be sure to use glasses with the correct ISO 12312-2 rating.

Total at La Silla takes place around 20:38 UT, with the Sun 15 degrees high in the sky. And while the big instruments and the website stay dormant, the European South Observatory will host a public viewing house, complete with a live webcast of the eclipse for the rest of us, stretching out of the way to totality.

The view of totality at La Silla at mid-eclipse. Credit: Stellarium.

A small set of scientific observations will be made during the actual eclipse on the spot.

Who's going? Right now I know more people (19459023) @Cosmic_Carol @ishysan @olidax and @Pmsutter ) who make their way to La Silla.

And the main theme of conversation post-totality is always: "when is the next?" Well, this eclipse season is book-ended with a partial lunar eclipse on July 16, th favoring Europe, Africa, Asia and Australia. The next solar eclipse is an annular intersection of South East Asia on December 26 th 2019. And you don't have to wait until April 8th th 2024 to see totality again, as the next total solar eclipse takes place on December 14, th 2020, which spans the South Pacific, South tip of South America and the South Atlantic.

Let the eclipse season begin!


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