Editing 1880: Eclipse Review

{{comic
| number    = 1880
| date      = August 23, 2017
| title     = Eclipse Review
| image     = eclipse_review.png
| titletext = I watched from a beautiful nature reserve in central Missouri, and it was--without exaggeration--the coolest thing I've ever seen.
}}

==Explanation==
This comic is the last of five consecutive comics published in the week before and during the {{w|solar eclipse}} occurring on Monday, {{w|Solar eclipse of August 21, 2017|August 21, 2017}} which was visible as a total solar eclipse within a band across the {{w|contiguous United States}} from west to east and visible as a partial eclipse across the entire contiguous United States and beyond. The other comics are [[1876: Eclipse Searches]], [[1877: Eclipse Science]], [[1878: Earth Orbital Diagram]], and [[1879: Eclipse Birds]].

The comic is another comparison graph, like [[1775: Things You Learn]] or [[1701: Speed and Danger]]. It contrasts how cool something ''sounds'' and how cool it actually ''is''. It has five points on it, planetary conjunction, supermoon, lunar eclipse, partial solar eclipse, and total solar eclipse. 

While the four other things than total solar eclipse are relatively close to each other on the "how cool to see" scale, the graph is not even high enough to plot the total solar eclipse point as indicated by the dotted arrow showing that this point should be way higher up. This is as opposed to leaving the point out, as Randall did with the coconut in [[388: Fuck Grapefruit]], where it is only mentioned in the title text. This could be an indication that if the scale had been high enough to fit the total solar eclipse point, then the rest of the points would be on the x-axis without any indication of which would be cooler. 

A total solar eclipse correctly sounds like it is the coolest of the five, but it is vastly cooler to see it in person by a wide margin. It seems like Randall is trying to convince those who missed the eclipse this time to go watch in seven years when another total solar eclipse is visible in the USA.

;Planetary Conjunction
In a {{w|Conjunction (astronomy)|planetary conjunction}} two or more planets are visible close together in the night sky. This happens relatively {{w|List_of_conjunctions_(astronomy)|often}} because all planets lie in roughly the same plane around the sun (the <s>Sagittal</s> {{w|ecliptic}}). This looks like two big stars close to each other, and isn't particularly exciting.

;Supermoon
A {{w|Supermoon|supermoon}} is a full moon or a new moon that approximately coincides with the Moon's closest approach in its elliptic orbit around the Earth. This results in a larger-than-usual apparent size of the lunar disk, but a typical human doesn't recognize the difference. Nevertheless, in recent years the press has often announced supermoons as important astronomical events. The opposite of a supermoon is called a micromoon. A "supermoon" sounds very cool, but like a planetary conjunction it's almost indistinguishable in the average night sky (see [[1394: Superm*n]], and this [[:Category:Supermoon|list]]) of other comics that have referred to the term).

;Lunar Eclipse
A {{w|Lunar eclipse|lunar eclipse}} occurs during the full moon and, like at a solar eclipse, happens only when the Moon is in the region where the orbital planes of the Moon and the Earth intersect. The Earth's shadow falls on the Moon, causing it to appear dark red. The moon doesn't generally darken completely due to some light still reaching the Moon through the outer layers of the Earth's atmosphere. As with solar eclipses, lunar eclipses occur on average once every six months, but they can be viewed by anyone who is on the night-time side of Earth during the eclipse, as opposed to only being visible from a small strip of the Earth's surface. A lunar eclipse looks noticeably different from a usual full moon, making it fairly cool.

;Partial Solar Eclipse
There are three types of {{w|Solar_eclipse#Types|non-total solar eclipses}}. A ''partial eclipse'' occurs when the Sun and Moon are not exactly in line with an observer on Earth, and thus the Moon doesn't fully obscure the Sun. An ''annular eclipse'' occurs when the Sun and Moon do line up with an observer on Earth, but the Moon is too far away from earth to block the entire Sun. The Sun appears as a very bright ring, which is also called an annulus. A ''hybrid eclipse'' is an eclipse which is total when viewed from some parts of the earth, but is annular when viewed from others. These ''mixed'' eclipses are comparatively rare, even when compared with total eclipses. A large percentage of the continental United States experienced a partial eclipse along with the total solar eclipse on August 21st. A partial solar eclipse is quite cool, but nowhere near as dramatic as a sky-darkening total solar eclipse.

;Total Solar Eclipse
The {{w|Solar_eclipse#Types|total solar eclipse}} is the topic of this and the four preceding comics. It occurs during the new moon, and happens only when the Sun and Moon are exactly in line with an observer on Earth and when the Moon appears large enough to fully obscure the Sun. Unlike a lunar eclipse, only a small portion of the Earth lies within the Moon's shadow at any given time, roughly a disc with a diameter of approx. 100 km. The disc moves very fast over the Earth's surface, meaning that at any given location eclipses can't last longer than a few minutes. At locations outside of this ''shadow-disc'', in a region over a few thousand kilometers, the eclipse is partial.

In the title text Randall reveals that he had traveled to a location in Missouri because at his home in Massachusetts the eclipse was only partial. And, without a doubt, the total solar eclipse was the coolest thing he ever has seen in his life.

==Transcript==
:[A scatter plot with five labeled dots is drawn. The x-axis reads "How cool it sounds like it would be" and the y-axis is labeled with "How cool it is to see in person".]
:[Bottom left] <span style="color:grey;">Planetary conjunction</span>
:[Bottom middle] <span style="color:grey;">Supermoon</span>
:[Low left-center] <span style="color:grey;">Lunar eclipse</span>
:[Low-center middle] <span style="color:grey;">Partial solar eclipse</span>
:[Upper right, with a dotted arrow above it pointing up] Total solar eclipse

==Trivia==
*While the ''WOW-effect'' happened mostly to people standing on Earth gazing at the sun, there were more astonishing pictures taken from this event: An ISS-transit in front of the [https://www.nasa.gov/image-feature/iss-transit-during-2017-solar-eclipse partial eclipsed] sun, the shadow on Earth seen from [https://www.nasa.gov/image-feature/the-eclipse-2017-umbra-viewed-from-space-1 space], the astronauts also could see a [https://www.nasa.gov/image-feature/the-eclipse-2017-from-space partial eclipse] because the orbit was [https://twitter.com/Astromaterials/status/899475632912052224/photo/1 above America] by that time, the eclipse seen from a distance of 380,000 km in an orbit around the [https://www.nasa.gov/feature/goddard/2017/LRO-captures-eclipse-from-the-moon Moon], and an [https://www.nasa.gov/image-feature/goddard/2017/nasas-epic-view-of-2017-eclipse-across-america animation] taken from a distance of 1,6 Mio. km by the {{w|Deep Space Climate Observatory|Deep Space Climate Observatory (DSCOVR)}} located in a line exactly between Earth and Sun.

{{comic discussion}}

[[Category:Scatter plots]]
[[Category:Rankings]]
[[Category:Total Solar Eclipse 2017]]
[[Category:Supermoon]]
[[Category:Astronomy]]
[[Category:Solar eclipses]]