APOD: All the Eclipses of 2017 (2017 Dec 07)

[APOD Robot]

All the Eclipses of 2017

Explanation: As seen from planet Earth, all the lunar and solar eclipses of 2017 are represented at the same scale in these four panels. The year's celestial shadow play was followed through four different countries by one adventurous eclipse chaser. To kick off the eclipse season, at top left February's Full Moon was captured from the Czech Republic. Its subtle shading, a penumbral lunar eclipse, is due to Earth's lighter outer shadow. Later that month the New Moon at top right was surrounded by a ring of fire, recorded on film from Argentina near the midpoint of striking annular solar eclipse. The August eclipse pairing below finds the Earth's dark umbral shadow in a partial eclipse from Germany at left, and the vibrant solar corona surrounding a totally eclipsed Sun from the western USA. If you're keeping score, the Saros numbers (eclipse cycles) for all the 2017 eclipses are at bottom left in each panel.

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[BDanielMayfield]

Is four the minimum number of eclipses of all types that can occur in one calendar year? I seem to recall that solar eclipses can be bracketed by lunar eclipses both two weeks before and after the solar.

Bruce

[Boomer12k]

Interesting to see the different types all at one time...

:---[===] *

[Calkin]

The "Saros Numbers" hyperlink seems incorrect and does not take one to another webpage ?

[Indigo_Sunrise]

The "Saros Numbers" hyperlink seems incorrect and does not take one to another webpage ?

I was just going to say this. It appears the date is missing a digit.

It's very cool that one individual was able to travel to each of those places to capture these images!

[De58te]

Is four the minimum number of eclipses of all types that can occur in one calendar year? I seem to recall that solar eclipses can be bracketed by lunar eclipses both two weeks before and after the solar.

Bruce

That is true. 4 is the minimum number of eclipses in a calendar year. 7 is the maximum. Bear in mind that not all of them would be visible at a given location, particularly with the Solar Eclipses.

[BobStein-VisiBone]

The "Saros Numbers" hyperlink seems incorrect and does not take one to another webpage ?

I was just going to say this. It appears the date is missing a digit.

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https://apod.nasa.gov/apod/ap17811.html

the "Saros numbers" link

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https://apod.nasa.gov/apod/ap170811.html

should be

[BDanielMayfield]

Is four the minimum number of eclipses of all types that can occur in one calendar year? I seem to recall that solar eclipses can be bracketed by lunar eclipses both two weeks before and after the solar.

Bruce

That is true. 4 is the minimum number of eclipses in a calendar year. 7 is the maximum. Bear in mind that not all of them would be visible at a given location, particularly with the Solar Eclipses.

Thanks De58te. So, as years go, we kinda got shorted a few lunar eclipses this year. I wonder why?

[neufer]

Is four the minimum number of eclipses of all types that can occur in one calendar year? I seem to recall that solar eclipses can be bracketed by lunar eclipses both two weeks before and after the solar.

That is true. 4 is the minimum number of eclipses in a calendar year. 7 is the maximum. Bear in mind that not all of them would be visible at a given location, particularly with the Solar Eclipses.

Thanks De58te. So, as years go, we kinda got shorted a few lunar eclipses this year. I wonder why?

Patience, Grasshopper.

We kinda got shorted in eclipses this year but we will make up for it in the upcoming years:

• 2018 : 3 solar eclipses
  2019 : 3 solar eclipses
  2020 : 4 lunar eclipses

The Moon's orbital plane gradually rotates once every 18.61 years due to the Solar tidal force
such that the solstice nodes point towards the Sun every 9.305 years; hence:

• 2028 : 3 lunar eclipses
  2029 : 4 solar eclipses
  
  2038 : 4 lunar eclipses & 3 solar eclipses
  
  2047 : 4 solar eclipses
  2048 : 3 lunar eclipses

[Craig Willford]

The "Saros Numbers" hyperlink seems incorrect and does not take one to another webpage ?

I was just going to say this. It appears the date is missing a digit.

It's very cool that one individual was able to travel to each of those places to capture these images!

The hyperlink appears to have meant to put "08" instead of just "8" in the date.