The first is thought to be a particular bright Parry arc, mistakenly described as a parhelion.
2.
Circumzenithal arc, Supralateral arc, Parry arc, and Upper tangent arc, in Salem, Massachusetts, Oct 27, 2012.
3.
The crater Parry Sound, Ontario, Canada, and the optical phenomenon Parry arc, documented by him during the 1819 1821 expedition.
4.
Second, on just that circle ( " the 22?halo " ), directly above the sun, under a vertical line ( " possible sun pillar " ), there was a part of an inverted circle or rainbow, also with very beautiful colours ( " the upper tangent arc " ), with another, a bit less bright sundog in it ( " possible Parry arc " ).
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