Eclipsed
How realistic were the eclipses in "The Shadow War!" (August 18, 2018) episode of Duck Tales (2017)?
In these images from the episode the sky, when seen, looks reddish, implying that the action happens near sunset and/or dawn. And I am not certain how plausible it would be for either a solar or a lunar eclipse to be visible when the sky is that color.
http://disney.wikia.com/wiki/The_Shadow_War!
Maybe something else causes the sky to have that color, such as Magica's magic, or some coincidental natural phenomenon.
Looking at images from the episode here:
http://clipsg.com/video/do-you-believe-in-magica-ducktales-2017-epi_sg_tZz7RLvF_Jk.html
and here:
http://clipsg.com/video/ducktales-clip-lena39-s-origin_sg_8AcoiPzx2g0.html
The Duckburg eclipse looks like a total solar eclipse. And the flashback to the Vesuvius eclipse looks like a total solar eclipse, but it may have to be some other type of eclipse.
The date of "Woo-oo!" (August 12, 2017) is sometime in a year that is about 2017 - maybe about 2015-2019, "The Last Crash of the Sunchaser!" (August 11, 2018) is said to be "six months later", and "The Shadow War!" (August 18, 2018) seems to be about three days after "The Last Crash of the Sunchaser!". Therefore "The Shadow War!" should happen no later than January to July of the year after the year of "Woo-oo!", and possibly as early as June to December of the same year as "Woo-oo!". The year of "The Shadow War!" might be about 2015-2020.
The Spear of Selene incident and the hatching of Huey, Dewey, and Louie should have been about the "ten years" mentioned before "Woo-oo!" and so about 2004-2010. I believe that in "The Secret(s) of Castle McDuck!" (August 4, 2018) a paper with the birth date of Huey, Dewey, and Louie is seen, with the year 20__, the last two digits hidden by a thumb. So theoretically the boys could have hatched any time between 2000 and 2099, and the first season of Duck Tales (2017-) could happen anytime between about 2009 to about 2111.
In "The Other Bin of Scrooge McDuck!" (July 21, 2018) Webby reads to Lena from The Life and Times of Scrooge McDuck that Scrooge was born in 1867, thus making Scrooge between 148 and 153 in the first season if it happens in 2015 to 2020, or 142 to 244 in the first season if it happens in 2009 to 2111. But for now I will ignore the possibility that Duck Tales (2017) might happen decades in the future.
The battle between Scrooge and Magica de Spell on Mount Vesuvius during an eclipse should have been about "fifteen years" before "The Shadow War!", and so about 2000-2006.
The only solar eclipses visible at Mount Vesuvius during this period would be the partial solar eclipse of May 31, 2003 and the partial solar eclipse of October 3, 2005.
https://en.wikipedia.org/wiki/List_of_solar_eclipses_in_the_21st_century
https://en.wikipedia.org/wiki/List_of_solar_eclipses_in_the_20th_century
Going by the possibility that "The Shadow War!" could theoretically happen anytime between 2009 and 2111, the fight on Mount Vesuvius could theoretically happen as early as about 1993.
Partial solar eclipses were visible in Italy October 12, 1996 and August 11, 1999.
The only total solar eclipse visible in any parts of the USA during 2015-2020 seems to be the August 21, 2017 one, so if "The Shadow War" happens then "Woo-oo" would happen about February 2017. According to the map of the path of totality the coastal city of Duckburg should be in Oregon or in South Carolina. Going by the possibility that "The Shadow War!" could theoretically happen anytime between 2009 and 2111, an annular and partial solar eclipse was visible in parts of the USA on May 20, 2012, the eclipse of November 3, 2013 caused some darkening in Eastern North America, and there was a partial solar eclipse in North America on October 23, 2014.
There were seven total Lunar eclipses during 2000-2006, and each of them would be visible from almost every place that was on the night side of Earth when they happened. Those total Lunar eclipses were on January 21 and July 16, 2000, January 9, 2001, May 16 and September 9, 2003, and May 4 and October 28, 2004.
There were and will be five total Lunar eclipses during 2015-2020, and each of them would be visible from almost every place that was on the night side of Earth when they happen. These total Lunar eclipses were on April 4 and September 28, 2015, January 31 and July 27, 2018, and will be on January 29, 2019.
https://en.wikipedia.org/wiki/List_of_21st-century_lunar_eclipses
As said above, theoretically the eclipse on Mount Vesuvius could happen between 1993 and 2097, and the eclipse at Duckburg between 2009 and 2111, but total lunar eclipses are a bit too common to list here.
Of course, in a universe where anthropomorphic ducks, birds, dogs, and other animals take the place of humans, it is possible that the dates of eclipses are different.