right ascension
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Letter R
-> right ascension
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right ascension Definition
(n) (
astronomy
)
the
angular
distance
eastward
along
the
celestial
equator
from
the
vernal
equinox
to
the
intersection
of
the
hour
circle
that
passes
through
the
body
;
expressed
in
hours
and
minutes
and
second
;
used
with
declination
to
specify
positions
on
the
(n)
an
arc
of
the
celestial
equator
eastward
from
the
vernal
equinox
right ascension Synonyms
celestial longitude
RA
right ascension
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