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Definition of astronomical
Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of astronomical is as below...
Astronomical
(a.) Of or
pertaining
to
astronomy;
in
accordance
with the
methods
or
principles
of
astronomy.
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Year
::
Year (n.) The time of the
apparent
revolution
of the sun
trough
the
ecliptic;
the
period
occupied
by the earth in
making
its
revolution
around
the sun,
called
the
astronomical
year; also, a
period
more or less
nearly
agreeing
with this,
adopted
by
various
nations
as a
measure
of time, and
called
the civil year; as, the
common
lunar year of 354 days, still in use among the
Mohammedans;
the year of 360 days, etc. In
common
usage,
the year
consists
of 365 days, and every
fourth
year
(called
bissext
Uranic
::
Uranic
(a.) Of or
pertaining
to the
heavens;
celestial;
astronomical.
Refraction
::
Refraction
(n.) The
change
in the
direction
of a ray of
light,
and,
consequently,
in the
apparent
position
of a
heavenly
body from which it
emanates,
arising
from its
passage
through
the
earth's
atmosphere;
-- hence
distinguished
as
atmospheric
refraction,
or
astronomical
refraction..
Analemma
::
Analemma
(n.) An
instrument
of wood or
brass,
on which this
projection
of the
sphere
is made,
having
a
movable
horizon
or
cursor;
--
formerly
much used in
solving
some
common
astronomical
problems..
Astronomical
::
Astronomical
(a.) Of or
pertaining
to
astronomy;
in
accordance
with the
methods
or
principles
of
astronomy.
Astrophysical
::
Astrophysical
(a.)
Pertaining
to the
physics
of
astronomical
science.
Autumn
::
Autumn
(n.) The third
season
of the year, or the
season
between
summer
and
winter,
often
called
the fall.
Astronomically,
it
begins
in the
northern
temperate
zone at the
autumnal
equinox,
about
September
23, and ends at the
winter
solstice,
about
December
23; but in
popular
language,
autumn,
in
America,
comprises
September,
October,
and
November..
Plane
::
Plane (a.) An ideal
surface,
conceived
as
coinciding
with, or
containing,
some
designated
astronomical
line,
circle,
or other
curve;
as, the plane of an
orbit;
the plane of the
ecliptic,
or of the
equator..
Almanac
::
Almanac
(n.) A book or
table,
containing
a
calendar
of days, and
months,
to which
astronomical
data and
various
statistics
are often
added,
such as the times of the
rising
and
setting
of the sun and moon,
eclipses,
hours of full tide,
stated
festivals
of
churches,
terms of
courts,
etc..
Ephemeris
::
Ephemeris
(n.) A
publication
giving
the
computed
places
of the
heavenly
bodies
for each day of the year, with other
numerical
data, for the use of the
astronomer
and
navigator;
an
astronomical
almanac;
as, the
American
Ephemeris
and
Nautical
Almanac..
Terrestrial
::
Terrestrial
(a.)
Adapted
for the
observation
of
objects
on land and on the
earth;
as, a
terrestrial
telescope,
in
distinction
from an
astronomical
telescope..
Astroscope
::
Astroscope
(n.) An old
astronomical
instrument,
formed
of two
cones,
on whose
surface
the
constellations
were
delineated..
Sector
::
Sector
(n.) An
astronomical
instrument,
the limb of which
embraces
a small
portion
only of a
circle,
used for
measuring
differences
of
declination
too great for the
compass
of a
micrometer.
When it is used for
measuring
zenith
distances
of
stars,
it is
called
a
zenith
sector..
Almagest
::
Almagest
(n.) The
celebrated
work of
Ptolemy
of
Alexandria,
which
contains
nearly
all that is known of the
astronomical
observations
and
theories
of the
ancients.
The name was
extended
to other
similar
works..
Table
::
Table (n.) Any
collection
and
arrangement
in a
condensed
form of many
particulars
or
values,
for ready
reference,
as of
weights,
measures,
currency,
specific
gravities,
etc.; also, a
series
of
numbers
following
some law, and
expressing
particular
values
corresponding
to
certain
other
numbers
on which they
depend,
and by means of which they are taken out for use in
computations;
as,
tables
of
logarithms,
sines,
tangents,
squares,
cubes,
etc.;
annuity
tables;
interest
tables;
astronomical
tables,
Venus
::
Venus (n.) The metal
copper;
--
probably
so
designated
from the
ancient
use of the metal in
making
mirrors,
a
mirror
being still the
astronomical
symbol
of the
planet
Venus..
Libration Point
::
Libration
point (n.) any one of five
points
in the plane of a
system
of two large
astronomical
bodies
orbiting
each
other,
as the
Earth-moon
system,
where the
gravitational
pull of the two
bodies
on an
object
are
approximately
equal,
and in
opposite
directions.
A solid
object
moving
in the same
velocity
and
direction
as such a
libration
point will
remain
in
gravitational
equilibrium
with the two
bodies
of the
system
and not fall
toward
either
body..
Ptolemaist
::
Ptolemaist
(n.) One who
accepts
the
astronomical
system
of
Ptolemy.
Reckoning
::
Reckoning
(n.) The
calculation
of a
ship's
position,
either
from
astronomical
observations,
or from the
record
of the
courses
steered
and
distances
sailed
as shown by
compass
and log, -- in the
latter
case
called
dead
reckoning
(see under
Dead);
-- also used for dead
reckoning
in
contradistinction
to
observation..
Gastronomical
::
Gastronomical
(a.)
Pertaining
to
gastromony.
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