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Astronomical coordinate analogous to latitude
In astronomy, declination (abbreviated dec; symbol δ) is the angular distance from the celestial equator on the celestial sphere; when paired with right
Declination
Angle on the horizontal plane between magnetic north and true north
Magnetic declination (also called magnetic variation) is the angle between magnetic north and true north at a particular location on the Earth's surface
Magnetic_declination
Topics referred to by the same term
Look up declination in Wiktionary, the free dictionary. Declination is a noun form of the verb decline and may refer to: Declination, coordinate used in
Declination_(disambiguation)
Calculating the Sun's location in the sky at a given time and place
that the solar declination would decrease linearly with time. Eventually, the Sun would be directly above the South Pole, with a declination of −90°; then
Position_of_the_Sun
Moon stops moving north or south
celestial equator (measured as an angle expressed in degrees called declination of a celestial coordinate system, analogous to latitude). The Moon comes
Lunar_standstill
Instrument used for navigation and orientation
magnetic north, called magnetic declination can vary widely with geographic location. The local magnetic declination is given on most maps, to allow the
Compass
Equation to derive time of sunset and sunrise
equation can be used to derive the time of sunrise or sunset for any solar declination and latitude in terms of local solar time when sunrise and sunset actually
Sunrise_equation
Mounting system for camera or telescope
ascension) is paired with a second perpendicular axis of motion (known as the declination). The equatorial axis of the mount is often equipped with a motorized
Equatorial_mount
Line between the poles with the same longitude
latitude with the formula. Latitude = (90° – noon altitude + declination) The declination of major stars are their angles north and south from the celestial
Meridian_(geography)
American hardcore band
drummer Jesse Wright. 2023 also saw the re-release of their second album "Declination of Independence" on A389 Recordings. The record got remixed and remastered
Cold_as_Life
Earth's magnetic pole in the Northern Hemisphere
north is called the magnetic declination. Most map coordinate systems are based on true north, and magnetic declination is often shown on map legends
North_magnetic_pole
and span thirty-eight constellations of the celestial sphere from the declination of −70° to +89°. Many of the selected stars were named in antiquity by
List_of_stars_for_navigation
Inflection in the Russian language
In Russian grammar, the system of declension is elaborate and complex. Nouns, pronouns, adjectives, demonstratives, most numerals and other particles are
Russian_declension
Time-telling device
at a positive declination in spring and summer, and at a negative declination in autumn and winter, and having exactly zero declination (i.e., being on
Sundial
Rhetorical technique to create bias
In rhetoric, emotive or emotional conjugation (also known as Russell's conjugation) is a rhetorical technique used to create an intrinsic bias towards
Emotive_conjugation
Imaginary point directly above a particular location, on the imaginary celestial sphere
(also "star on top", "overhead star", "latitude star") are stars whose declination equals the latitude of the observers location, and hence at some time
Zenith
Diagrammatic representation of Sun's position over a period of time
("sun fast") vs. declination of the Sun. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of
Analemma
Astronomical instrument for timing of the passage of stars
all times. Revolving the telescope about its axis moves it directly in declination, and objects move through its field of view in right ascension. All objects
Meridian_circle
Daily appearance and disappearance of the Moon at the Earth's horizon
below it, respectively. The exact times depend on the lunar phase and declination, as well as the observer's location. As viewed from outside the polar
Moonrise_and_moonset
Nautical instrument
azimuth obtained by astronomical observation to determine the magnetic declination, the amount by which the reading of a ship's compass must be adjusted
Azimuth_compass
Hiatus between prosodic units
Greek παῦσις, pâusis 'stopping, ceasing') is the hiatus between prosodic declination units. The concept is somewhat broad, as it is primarily used to refer
Pausa
Celestial coordinate system
east or true west when its declination is of the same name as the ship's latitude and less than the latter. When the declination of the body is of the same
Prime_vertical
Astronomical equivalent of longitude
(hour circle of the) point in question above the Earth. When paired with declination, these astronomical coordinates specify the location of a point on the
Right_ascension
Atmospheric illumination by the Sun below the horizon
at latitudes less than 48°50' North or South, because then the Sun's declination is less than 23°10' from the Equator; In February or August, astronomical
Twilight
Celestial coordinate system used to specify the positions of celestial objects
south. For example, the north celestial pole has a declination of +90°. The origin for declination is the celestial equator, which is the projection of
Equatorial_coordinate_system
Visible star that is nearly aligned with Earth's axis of rotation
declination of +89°32'23", which translates to 1657" (or 0.4603°) from the celestial north pole, in February 2102. Its maximum apparent declination (taking
Pole_star
One of the four cardinal directions
difference between it and true north is called the magnetic declination (or simply the declination where the context is clear). For many purposes and physical
North
Surveying instrument that uses the Sun's direction instead of magnetism
in a set of tables in an almanac. A correction for this declination is made on the declination arc of the compass, which is mounted to rotate on the polar
Burt's_solar_compass
Segment of speech that occurs with a single prosodic contour
of tempo; this larger unit is termed a declination unit (DU). At the boundaries (pauses) between declination units, the pitch and tempo reset; for this
Prosodic_unit
Part of celestial coordinate system
circle through a given object and the two celestial poles. Together with declination and distance (from the planet's centre of mass), it determines the location
Hour_circle
Fourth letter in the Greek alphabet
used to represent Dee. A subunit of the F1 sector of the F-ATPase. The declination of an object in the equatorial coordinate system of astronomy. The dividend
Delta_(letter)
Region of space
located 700 million light-years from Earth, at right ascension 14h 50m and declination 46°. The Hercules Superclusters are part of the near edge of the void
Boötes_Void
Class of star chart
centered on one of the celestial poles (polar), while circles of equal declination (for instance 60°, 30°, 0° (the celestial equator), −30°, and −60°) lie
Planisphere
Compass error induced by local fields
If not corrected, deviation can lead to inaccurate bearings. Magnetic declination (also called variation) is the angular difference between magnetic north
Magnetic_deviation
Study and interpretation of the signatures of the Earth's magnetic field
Pole and the local secular variation to yield a magnetic declination. The magnetic declination at any given time can be frozen into a clay formation that
Archaeomagnetic_dating
List of constellations by area
boundaries along vertical and horizontal lines of right ascension and declination; however, he did so for the epoch B1875.0, which means that due to precession
IAU designated constellations by solid angle
IAU_designated_constellations_by_solid_angle
Twice-annual astronomical event when the Sun is farthest from above the Earth's equator
and sistere ('to stand still'), because at the solstices, the Sun's declination appears to "stand still"; that is, the seasonal movement of the Sun's
Solstice
Passage of an astronomical body across the meridian
culmination is equal to 90 minus the observer's latitude (L) plus the object's declination (δ): A = 90° − L + δ. This equation is the basis for the meridian altitude
Culmination
Astronomical survey (1965-1971)
sky area between the limiting declinations of 63°N and 36°S with a resolution at 1415 MHz of 40 arc minutes in declination. The survey was carried out primarily
Ohio_Sky_Survey
Celestial coordinate system
it is equal to 90° or 270°. This does not match up to declination exactly zero or declination extreme value because the celestial latitude of the Sun
Apparent_longitude
Complement of latitude; polar angle
the zenith (overhead point) to Polaris is 90 − 42 = 48°. Adding the declination of a star to the observer's colatitude gives the maximum altitude of
Colatitude
Arc-like path that the Sun appears to follow across the sky
a minimum and is equal to the absolute value of latitude minus solar declination angle. This is the basis by which ancient mariners navigated the oceans
Sun_path
Celestial coordinate system
on its meridian measured from the celestial pole, similar to the way declination (dec, δ) is measured from the celestial equator. Polar distance in celestial
Polar_distance_(astronomy)
Sundial where the gnomon must be moved
location (determines the location of the hour markers on the ellipse). The declination of the sun (determines the daily gnomon position). Analemmatic sundials
Analemmatic_sundial
Asterism
constellation (Aquila, Cygnus, and Lyra, respectively). The greatest declination is +45° and the lowest is +9°, meaning the three stars can be seen from
Summer_Triangle
Jupiter-family comet
As of mid-June 2026, the comet is around apparent magnitude 13 with a declination of –09. At the perihelion passage on 2 August 2026 the solar elongation
10P/Tempel
Timing of Islamic prayers
calculate prayer times two astronomical measures are necessary, the declination of the sun and the difference between clock time and sundial clock. This
Salah_times
Concept in Indian astronomy and astrology
of equal declination, it is styled vaidhṛta. When the moon and sun are upon opposite sides of either solstice, and their minutes of declination are the
Vyatipāta
Early astronomical instrument
instrument consists of three rings, representing the celestial equator, declination, and the meridian. It can be used as a sun dial to tell time, if the
Astronomical_rings
Aspect of Latin grammar
The rules can be a bit involved. The diminutive depends on the gender, declination (first, second, etc.) and the root's ending. In general the diminutive
Latin_diminutive
Semi-annual astronomical event where the Sun is directly above the Earth's equator
defined by the Sun's more regular ecliptic longitude rather than by its declination. The instants of the equinoxes are currently defined to be when the apparent
Equinox
Group of stars on the celestial sphere
may include those that lie between declinations 45° north and 45° south, or those that pass through the declination range of the ecliptic (or zodiac) ranging
Constellation
Arc crossing all meridians of longitude at the same angle
to correct for the changing declination. This was a significant challenge during the Age of Sail, as the correct declination could only be determined if
Rhumb_line
Method of orienting telescopes and other celestial observation devices
it is difficult for inexperienced observers to locate in the sky. Its declination of -88° 57′ 23″ places it 1° 2′ 37" from the South Celestial Pole. An
Polar_alignment
History of the study of Earth's magnetic field
(north, east, and down) or spherical (declination, inclination, and intensity). In the latter system, the declination (the deviation from true north, a horizontal
History_of_geomagnetism
Nautical navigational instrument
sea by measuring the sun's noon altitude (declination) or the meridian altitude of a star of known declination. Not an astrolabe proper, the mariner's astrolabe
Mariner's_astrolabe
Astronomical phenomenon time
Earth's maximum axial tilt toward the Sun is 23.44°. Likewise, the Sun's declination from the celestial equator is 23.44°. In areas outside the tropics, the
Summer_solstice
Intersection of Moon's orbit with Earth's ecliptic
This is called major lunar standstill. Around this time, the Moon's declination will vary from −28°36′ to +28°36′. Conversely, 9.3 years later, the angle
Lunar_node
Coordinates used in the equatorial coordinate system
Aries (sidereal hour angle, SHA). The hour angle is paired with the declination to fully specify the location of a point on the celestial sphere in the
Hour_angle
Constellations recognized by the International Astronomical Union
constellation is a region of the sky bordered by arcs of right ascension and declination, together covering the entire celestial sphere. Their boundaries were
IAU_designated_constellations
Measure of observed changes in the apparent locations of stars
often J2000.0) are given in the direction of right ascension (μα) and of declination (μδ). Their combined value is computed as the total proper motion (μ)
Proper_motion
Quasar and Lyman-alpha blob in the constellations of Canes Venatici and Coma Berenices
Constellation Canes Venatici and Coma Berenices Right ascension 12h 28m 24.9s Declination +31° 28′ 38″ Redshift 2.219 Distance 3.31 Gpc (10.8 Gly) (light travel
TON_618
Angle between the zenith and the centre of the Sun's disc
a minimum and is equal to the absolute value of latitude minus solar declination angle. This is the basis by which ancient mariners navigated the oceans
Solar_zenith_angle
Tropical solar phenomenon
and the Tropic of Capricorn at approximately 23.5° S) when the Sun's declination becomes equal to the latitude of the location, so that the date varies
Lahaina_Noon
Constellation in the southern celestial hemisphere
coordinates of these borders lie between 11h 56.13m and 12h 57.45m , while the declination coordinates are between −55.68° and −64.70°. Its totality figures at
Crux
Black Hole in the constellation Cepheus
hyperluminous, broad-absorption-line quasar, or blazar, located near the high declination region of the constellation Cepheus, near the North Equatorial Pole.
S5_0014+81
D. and for navigation since the 12th century. Although the magnetic declination does shift with time, this wandering is slow enough that a simple compass
Earth's_magnetic_field
Star in the constellation of Draco
pole over the last 4800 years, Thuban is now seen in the night sky at a declination of 64° 20′ 45.6″, RA 14h 04m 33.58s. After moving nearly 47° off the
Thuban
Horizontal angle from north or other reference cardinal direction
star given its declination and hour angle at a specific location, modify the formula for a spherical Earth. Replace φ2 with declination and longitude difference
Azimuth
Brightest star in the constellation Eridanus
from the south celestial pole around 3400 BCE (declination −82° 40′) and still as far south as declination −76° by around 1500 BCE. Hence the Ancient Egyptians
Achernar
Swiss astronomer and mathematician (1816–1893)
the year 1852; discovery of a relation between the variations of the declination of the magnetic needle and sunspots]. Mittheilungen der Naturforschenden
Rudolf_Wolf
Phenomenon wherein objects appear to move about their true positions in the sky
a maximum angle of approximately 20 arcseconds in right ascension or declination. The term aberration has historically been used to refer to a number
Aberration_(astronomy)
Angle the planets make to each other in the horoscope
of declination above or below the Celestial Equator. They are not widely used by astrologers. A The same declination of two planets. The declination is
Astrological_aspect
Capital and largest city of Greenland
Calculators, National Geophysical Data Center. "Magnetic declination in Nuuk, Greenland". Magnetic Declination. Archived from the original on 23 December 2015
Nuuk
listing of stars more luminous than a red dwarf. Right ascension and declination coordinates are for the epoch J2000. The distance measurements are based
List_of_nearest_bright_stars
Emission nebula in the constellation Perseus
transits in the zenith in central California as the latitude matches the declination of the object. NGC 1499 is almost 2.5° long on the sky and, because of
California_Nebula
Astronomical catalogue
Array. It was published in two parts, in 1965 (for declinations +20 to +40) and 1967 (declinations −7 to + 20 and +40 to +80), by the Radio Astronomy
Fourth_Cambridge_Survey
Zodiac constellation in the southern celestial hemisphere
these borders lie between 14h 22m 08.08s and 16h 02m 17.23s, while the declination coordinates are between −0.47° and −30.00°. The whole constellation is
Libra_(constellation)
Compass direction
any point on the globe is magnetic variation (also known as magnetic declination, but for the purposes of the mnemonic, the term 'variation' is preferred)
Heading_(navigation)
Movable mount for satellite dishes
allow one axis slewing: Declination angle The declination angle or just "declination", from the astronomical term declination for the vertical value (north/south)
Polar_mount
Historical place in New Delhi
Yantra turned the basic hug sundial into a precision tool for measuring declination and other related coordinates of various heavenly bodies. The Vrihat
Jantar_Mantar,_New_Delhi
Star in the constellation Puppis with a brown dwarf companion
Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4, Declinations -26°.0 to -12°.0. Vol. 4. Bibcode:1988mcts.book.....H. HD 63754's database
HD_63754
Star in the constellation Cygnus
located at the celestial coordinates: Right Ascension 19h 16m 52.2s, Declination +47° 53′ 3.9″. With an apparent visual magnitude of 11.7, this star is
Kepler-22
UNESCO World Heritage Site in Jaipur
of major stars as the Earth orbits around the Sun, ascertaining the declinations of planets, and determining the celestial altitudes and related ephemerides
Jantar_Mantar,_Jaipur
Constellation in the southern celestial hemisphere
Belgian astronomer Eugène Delporte along arcs of right ascension and declination for epoch 1875. These were published in 1930 in the Delimination Scientifique
Reticulum
K-type giant in the constellation Octans
Michigan Catalogue of two-dimensional spectral types for the HD stars: Declinations −90° to −53°. Vol. 1. Bibcode:1975mcts.book.....H. Johnson, H. L.; Mitchell
HD_213402
A-type dwarf; Corona Australis
Michigan catalogue of two-dimensional spectral types for the HD stars: Declinations −53° to −40°. Vol. 2. Bibcode:1978mcts.book.....H. Corben, P. M. (April
HD_170384
Binary star in the constellation Telescopium
Michigan catalogue of two-dimensional spectral types for the HD stars: Declinations −53° to −40°. Vol. 2. Bibcode:1978mcts.book.....H. Cousins, A. W. J.;
HD_177365
Constellation in the southern celestial hemisphere
borders lie between 14h 17m 48.0635s and 16h 08m 36.6735s, while the declination coordinates are between −29.83° and −55.58°. The whole constellation
Lupus_(constellation)
Process by which people are asked to respond to an invitation
required. The phrase "regrets only" refers to the assumption that a declination will be worded with some variation of "We regret that we cannot attend …"
RSVP
A second triangle is drawn to the right, with a top angle of D, the declination of the wall. Finding SD- the substyle length The bottom bar of the left
Schema for vertical declining dials
Schema_for_vertical_declining_dials
Spanish cartographer
1519, which gave ample geographical information already contained solar declination tables with explanations and the corrections for finding the latitude
Pedro_de_Medina
Kreutz sungrazer comet
cross the celestial equator on 30 March 2026. Due to its relatively low declination in the sky relative to the Sun, it will become more favorable to view
C/2026_A1_(MAPS)
Binary star in the constellation Lupus
Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0. Bibcode:1982mcts.book.....H. Peck, Anne E.; Roberson
HD_143811
Star in the constellation of Telescopium
Michigan catalogue of two-dimensional spectral types for the HD stars: Declinations −53° to −40°. Vol. 2. Bibcode:1978mcts.book.....H. Oja, T. (1970). "UBV-Fotometri
HD_189080
stars, and João de Castro, who made important observations of magnetic declination over the entire route around Africa. Until the 15th century, the Portuguese
Portuguese_nautical_science
Binary system in the constellation Aquila
ascension (19 hours and 15 minutes) and "105" reflects the approximate declination (10 degrees and 56 arcminutes). The near-infrared counterpart was determined
GRS_1915+105
Designated common star constellations
the ecliptic. The group reaches from near the north celestial pole to declination −30°. The Hercules Family is a group of constellations connected mainly
Constellation_family
Five early C18 observatories in India
seconds by a skilled observer to determine the time of day, and the declination of the Sun and the other heavenly bodies. It is the world's largest stone
Jantar_Mantar
also has an implicit description of magnetic declination. It has been argued that this knowledge of declination requires the use of the compass. A reference
History_of_the_compass
DECLINATION
DECLINATION
DECLINATION
DECLINATION
Boy/Male
Indian, Punjabi, Sikh
Brave who Remembers the Lord
Boy/Male
Finnish French Swedish
Strong.
Girl/Female
Hindu
Girl/Female
French, German, Italian, Teutonic
Wealthy
Boy/Male
Yiddish
Deer.
Boy/Male
Tamil
Augmented by glory
Girl/Female
Indian, Punjabi
Smell
Girl/Female
Irish
An Irish form of Catherine that derives from an older Greek name meaning “clear, pure.†(See also Caitlin.)
Surname or Lastname
English
English : habitational name from a place in Devon so named, from Old English gafol ‘tax’, ‘toll’ + ford ‘ford’. The surname is now not found in England.Possibly an Americanized spelling of German Galfert, from a Germanic personal name based on Old High German galan ‘to sing’, or of Gelfort, Gelfert, or Gelfart(h), from a Germanic personal name composed with Middle High German gelfen ‘to cry’, ‘to boast’ or gelf ‘scorn’.
Girl/Female
Indian, Tamil
Flourishing Girl
DECLINATION
DECLINATION
DECLINATION
DECLINATION
DECLINATION
n.
An instrument for measuring the declination of the magnetic needle.
n.
The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it.
n.
Position in the heavens, as of a heavenly body; -- usually defined by its right ascension and declination, or by its latitude and longitude.
n.
The act of inflecting a word; declension. See Decline, v. t., 4.
n.
The angular distance of any object from the celestial equator, either northward or southward.
n.
One of the two small circles of the celestial sphere, situated on each side of the equator, at a distance of 23¡ 28/, and parallel to it, which the sun just reaches at its greatest declination north or south, and from which it turns again toward the equator, the northern circle being called the Tropic of Cancer, and the southern the Tropic of Capricorn, from the names of the two signs at which they touch the ecliptic.
n.
The act of deviating or turning aside; oblique motion; obliquity; withdrawal.
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.
n.
An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel to the axis of the earth, and each carrying a graduated circle, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known. The motion in right ascension is sometimes communicated by clockwork, so as to keep the object constantly in the field of the telescope. Called also an equatorial telescope.
n.
An instrument for measuring the intensity of magnetic forces; also, less frequently, an instrument for determining any of the terrestrial magnetic elements, as the dip and declination.
a.
Containing or involving a declination or refusal, as of submission to a charge or sentence.
n.
The arc of the horizon, contained between the vertical plane and the prime vertical circle, if reckoned from the east or west, or between the meridian and the plane, reckoned from the north or south.
n.
Formal declination to take out letters of administration, or to assume an office, privilege, or right.
n.
The act or state of declining or refusing; withdrawal; refusal; averseness.
n.
Distance of any heavenly body south of the equator; south declination; south latitude.
n.
The act or state of bending downward; inclination; as, declination of the head.
adv.
In a path near the equator, so that the declination is small, or near the horizon, so that the altitude is small; -- said of the heavenly bodies with reference to the diurnal revolution; as, the moon runs low, that is, is comparatively near the horizon when on or near the meridian.
n.
An instrument for taking the declination or angle which a plane makes with the horizontal plane.
n.
A hole in the gnomon of a dial, through which passes the ray of light which marks the hour of the day, the parallels of the sun's declination, his place in the ecliptic, etc.
n.
The distance of any heavenly body from the equator northward; north declination.