Magnitude of a star
Definition of Magnitude of a star
(Astron.)
the
rank
of a
star
with
respect
to
brightness
. About
twenty
very
bright
stars
are said to be of first
magnitude
, the
stars
of the
sixth
magnitude
being just
visible
to the
naked
eye
;
called
also
visual magnitude
,
apparent magnitude
, and
simply
magnitude
.
Stars
observable
only in the
telescope
are
classified
down to
below
the
twelfth
magnitude
. The
difference
in
actual
brightness
between
magnitudes
is now
specified
as a
factor
of 2.
512
, i.e. the
difference
in
brightness
is
100
for
stars
differing
by
five
magnitudes
.
See also:
Magnitude
Word:
Browse
magnetosphere
Magnetotherapy
magnetron
Magnifiable
Magnific
Magnificat
Magnificate
Magnification
Magnificence
Magnificent
Magnificently
Magnifico
magnified
Magnifier
Magnify
magnifying glass
Magniloquence
Magniloquent
Magniloquous
Magnitude
-Magnitude of a star-
Magnolia
Magnolia State
Magnolia warbler
Magnoliaceae
Magnoliaceous
Magnoliidae
Magnoliophyta
magnoliopsid
Magnoliopsida
Magnum
magnum opus
magnus hitch
Magot
Magot-pie
Magpie
Magpie lark
Magpie moth
Magrie robin
Maguari
Maguey
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