Monday, 16 November 2015

What constellations touch the 9-degree wide Zodiac?

Say Barry, could you abuse the answer-your-own-question feature of
this site, and answer the following question:



As noted in How many constellations in the Zodiac? the
ecliptic itself touches 13 constellations, but the Encylopedia
Brittanica defines the Zodiac as "a belt around the heavens extending
9 [degrees] on either side of the ecliptic":



http://www.britannica.com/topic/zodiac



The Old Farmer's Almanac for 2014 (and previous years) notes (page
114) that Moon occasionally crosses into 5 "non-Zodiac" constellations
at times:



enter image description here



So, exactly which constellations are "in the Zodiac" if the Zodiac
extends 9 degrees on either side of the ecliptic?



And why 9 degrees? I know Venus can be as much as 8.25 degrees from
the ecliptic,

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