Last Updated：2022/12/24
https://books.google.com/books?id=RhboPfYELMsC&pg=PA49 page 49 Upon this true mackarel sky
was depicted one of those glorious coronæ, only seen at great elevations or in high Latitudes. […] https://books.google.com/books?id=RhboPfYELMsC&pg=PA50 page 50 The corona was composed of two colours, violet on the edge nearest to the sun and red on the outer edge, the two colours blending together and forming a neutral tint in the middle of the corona; the order here observed with regard to the colours is similar to that observed in the rainbow.
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https://books.google.com/books?id=RhboPfYELMsC&pg=PA49
page
49
Upon
this
true
"mackarel
sky"
was
depicted
one
of
those
glorious
coronæ,
only
seen
at
great
elevations
or
in
high
Latitudes.
[…]
https://books.google.com/books?id=RhboPfYELMsC&pg=PA50
page
50
The
corona
was
composed
of
two
colours,
violet
on
the
edge
nearest
to
the
sun
and
red
on
the
outer
edge,
the
two
colours
blending
together
and
forming
a
neutral
tint
in
the
middle
of
the
corona;
the
order
here
observed
with
regard
to
the
colours
is
similar
to
that
observed
in
the
rainbow.
