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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
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
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
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
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
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
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
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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
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
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
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
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
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
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
Open star cluster in the constellation of Scorpius
detectable with the naked eye, close to the "stinger" of Scorpius. With a declination of −34.8°, it is the southernmost Messier object. M7 has been known since
Messier_7
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
Type of telescope mount and related software
and declination coordinates. When the user selects an object to view, the mount's software looks up the object's right ascension and declination and slews
GoTo_(telescopes)
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)
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
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
Galaxy cluster survey
the ROSAT All-Sky Survey data. Cluster candidates that are south of declination -40° cannot be observed from Mauna Kea and fit into the Southern MACS
MAssive_Cluster_Survey
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
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
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
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
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
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
Constellation straddling the celestial equator
+12° 30′ declination. The constellation extends southward to −30° declination. Segments of the ecliptic within Ophiuchus are south of −20° declination (see
Ophiuchus
Awareness of facts, or competency
Positivism Perspectives Antihumanism Empiricism Rationalism Scientism Declinations Legal positivism Logical positivism Positivist school Postpositivism
Knowledge
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)
Urban legend based on a region in North Atlantic
May 2009. "National Geomagnetism Program | Charts | North America | Declination" (PDF). United States Geological Survey. Archived from the original (PDF)
Bermuda_Triangle
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
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
Sixth planet from the Sun
(to orbit) North pole right ascension 40.589°; 2h 42m 21s North pole declination 83.537° Albedo 0.342 (Bond) 0.499 (geometric) Surface temp. min mean
Saturn
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
Blazar in the constellation Lepus
Kraus, J. D. (June 1969). "A High-Sensivity 1415-MHz Survey between Declinations 0 and +20 degrees (OHIO part III)". The Astronomical Journal. 74: 612
PKS_0454−234
Portuguese explorer (1500–1548)
the variation of magnetic declination is formed by geographic meridians. De Castro's recorded values of magnetic declination in the Atlantic and Indian
João_de_Castro
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
Millisecond pulsar in the constellation Virgo
Source of Radio) followed by the pulsar's right ascension and degrees of declination. The modern convention prefixes the older numbers with a B meaning the
PSR_B1257+12
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
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 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
h × 100 km s−1 Mpc−1). Mpc stands for megaparsec. The co-ordinates (right ascension and declination) and distance given refer to the approximate center of the region. In
List_of_voids
Greek astronomer
among the earliest meridian-astronomy observers. Six of his stellar declinations are preserved in the Almagest (7.3). All are exactly correct within his
Aristyllus
First planet from the Sun
orbit) (0.034°) North pole right ascension 18h 44m 2s 281.01° North pole declination 61.41° Albedo 0.088 (Bond) 0.142 (geom.) Temperature 437 K (164 °C) (blackbody
Mercury_(planet)
Table of positions of astronomical objects at given times
given in the spherical polar coordinate system of right ascension and declination, together with the distance from the origin if applicable. Some of the
Ephemeris
Angle between the two sightlines or two objects as viewed from an observer
2 π ] {\displaystyle (\alpha _{A},\alpha _{B})\in [0,2\pi ]} ; and declinations (dec), ( δ A , δ B ) ∈ [ − π / 2 , π / 2 ] {\displaystyle (\delta _{A}
Angular_distance
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
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
Constellation in the northern celestial hemisphere
these borders lie between 16h 00m 26.64s and 18h 57m 49.50s, while the declination coordinates are between +3.67° and +51.32°. In mid-northern latitudes
Hercules_(constellation)
NASA space probe launched in 1977
same conditions as Voyager 1. The spacecraft was reported at 12.44° declination and 17.163 hours right ascension, and at an ecliptic latitude of 34.9°
Voyager_1
Legal term
to a declination of prosecution, which is an agreement not to prosecute made before any charges are brought or suit has been filed. A declination of prosecution
Nolle_prosequi
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
Zodiac constellation straddling the celestial equator
approximately this point in the sky, at the March equinox. The right ascension/declination 00 is located within the boundaries of Pisces. The March equinox is currently
Pisces_(constellation)
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
Symbols used in divinatory geomancy
Sun. Astrologically it is associated with Leo and the Sun in southern declinations; both its inner and outer elemental rulers are fire. It indicates a weakly
Geomantic_figures
DECLINATION
DECLINATION
DECLINATION
DECLINATION
Surname or Lastname
German and Danish
German and Danish : metonymic occupational name for a salmon fisher or a seller of salmon, Middle High German lahs ‘salmon’.English (northeastern counties) and Danish : from an Old Norse nickname, Lax, meaning ‘salmon’.Jewish (Ashkenazic) : ornamental name from German Lachs ‘salmon’, Yiddish laks, one of the many Ashkenazic surnames taken from words denoting fish, birds, and animals.
Girl/Female
Muslim
Lion's share. Pure. Best friend. Untroubled.
Girl/Female
Christian & English(British/American/Australian)
A Thought
Boy/Male
Gaelic
Worships the saints.
Boy/Male
Muslim/Islamic
Falcon
Boy/Male
Muslim
The Biblical Elijah is the English language equivalent.
Biblical
answers or songs of the Lord; afflictions
Girl/Female
Australian, Indian, Punjabi, Sikh
Gods Musical Instrument
Boy/Male
Hindu, Indian, Marathi
One who Increases Happiness; Lord Ram
Boy/Male
Arabic, Muslim
Heavy Rain; Benevolent Deed
DECLINATION
DECLINATION
DECLINATION
DECLINATION
DECLINATION
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 or state of declining or refusing; withdrawal; refusal; averseness.
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 declination of the magnetic needle.
a.
Containing or involving a declination or refusal, as of submission to a charge or sentence.
n.
The act of deviating or turning aside; oblique motion; obliquity; withdrawal.
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.
Formal declination to take out letters of administration, or to assume an office, privilege, or right.
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.
The distance of any heavenly body from the equator northward; north declination.
n.
Distance of any heavenly body south of the equator; south declination; south latitude.
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 act of inflecting a word; declension. See Decline, v. t., 4.
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.
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.
The angular distance of any object from the celestial equator, either northward or southward.
n.
An instrument for taking the declination or angle which a plane makes with the horizontal plane.
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.
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 or state of bending downward; inclination; as, declination of the head.