Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Circumpolar star

Index Circumpolar star

A circumpolar star is a star, as viewed from a given latitude on Earth, that never sets below the horizon due to its apparent proximity to one of the celestial poles. [1]

55 relations: Absolute value, Alpha Crucis, Altitude, Angular distance, Arctic Circle, Asterism (astronomy), Atmospheric refraction, Azimuth, Big Dipper, Canopus, Capella, Cassiopeia (constellation), Celestial equator, Celestial pole, Celestial sphere, Cepheus (constellation), Constellation, Contiguous United States, Cornwall, Crux, Declination, Deneb, Diurnal motion, Earth's rotation, Equator, Fresno, California, Horizon, Horizontal coordinate system, Hydrus, Isles of Scilly, Latitude, London, Louisville, Kentucky, Musca, North Pole, Northern celestial hemisphere, Northern Hemisphere, Patagonia, Pole star, San Francisco, South America, South Pole, Southern Hemisphere, Star, Sun, Tangent, Tropic of Cancer, Tropic of Capricorn, Tulsa, Oklahoma, Ursa Major, ..., Ursa Minor, Vanishing point, Vega, Virginia Beach, Virginia, Voyages of Christopher Columbus. Expand index (5 more) »

Absolute value

In mathematics, the absolute value or modulus of a real number is the non-negative value of without regard to its sign.

New!!: Circumpolar star and Absolute value · See more »

Alpha Crucis

Alpha Crucis (α Crucis, abbreviated Alpha Cru, α Cru) is a multiple star system located 321 light-years from the Sun in the constellation of Crux and part of the asterism known as the Southern Cross.

New!!: Circumpolar star and Alpha Crucis · See more »

Altitude

Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, atmospheric pressure, and many more).

New!!: Circumpolar star and Altitude · See more »

Angular distance

In mathematics (in particular geometry and trigonometry) and all natural sciences (e.g. astronomy and geophysics), the angular distance (angular separation, apparent distance, or apparent separation) between two point objects, as viewed from a location different from either of these objects, is the angle of length between the two directions originating from the observer and pointing toward these two objects.

New!!: Circumpolar star and Angular distance · See more »

Arctic Circle

The Arctic Circle is the most northerly of the five major circles of latitude as shown on maps of Earth.

New!!: Circumpolar star and Arctic Circle · See more »

Asterism (astronomy)

In observational astronomy, an asterism is a popular known pattern or group of stars that are recognised in the night sky.

New!!: Circumpolar star and Asterism (astronomy) · See more »

Atmospheric refraction

Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height.

New!!: Circumpolar star and Atmospheric refraction · See more »

Azimuth

An azimuth (from the pl. form of the Arabic noun "السَّمْت" as-samt, meaning "the direction") is an angular measurement in a spherical coordinate system.

New!!: Circumpolar star and Azimuth · See more »

Big Dipper

The Big Dipper (US) or the Plough (UK) is an asterism consisting of seven bright stars of the constellation Ursa Major; six of them are of second magnitude and one, Megrez (δ), of third magnitude.

New!!: Circumpolar star and Big Dipper · See more »

Canopus

Canopus, also designated Alpha Carinae (α Carinae, abbreviated Alpha Car, α Car), is the brightest star in the southern constellation of Carina, and the second-brightest star in the night-time sky, after Sirius.

New!!: Circumpolar star and Canopus · See more »

Capella

Capella, also designated Alpha Aurigae (α Aurigae, abbreviated Alpha Aur, α Aur), is the brightest star in the constellation of Auriga, the sixth-brightest in the night sky, and the third-brightest in the northern celestial hemisphere after Arcturus and Vega.

New!!: Circumpolar star and Capella · See more »

Cassiopeia (constellation)

Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty.

New!!: Circumpolar star and Cassiopeia (constellation) · See more »

Celestial equator

The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth.

New!!: Circumpolar star and Celestial equator · See more »

Celestial pole

The north and south celestial poles are the two imaginary points in the sky where the Earth's axis of rotation, indefinitely extended, intersects the celestial sphere.

New!!: Circumpolar star and Celestial pole · See more »

Celestial sphere

In astronomy and navigation, the celestial sphere is an abstract sphere with an arbitrarily large radius concentric to Earth.

New!!: Circumpolar star and Celestial sphere · See more »

Cepheus (constellation)

Cepheus is a constellation in the northern sky, which is named after Cepheus (a King in the Greek mythology).

New!!: Circumpolar star and Cepheus (constellation) · See more »

Constellation

A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

New!!: Circumpolar star and Constellation · See more »

Contiguous United States

The contiguous United States or officially the conterminous United States consists of the 48 adjoining U.S. states plus Washington, D.C. on the continent of North America.

New!!: Circumpolar star and Contiguous United States · See more »

Cornwall

Cornwall (Kernow) is a county in South West England in the United Kingdom.

New!!: Circumpolar star and Cornwall · See more »

Crux

Crux is a constellation located in the southern sky in a bright portion of the Milky Way.

New!!: Circumpolar star and Crux · See more »

Declination

In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.

New!!: Circumpolar star and Declination · See more »

Deneb

Deneb, also designated α Cygni (Latinised alpha Cygni, abbreviated Alpha Cyg, α Cyg), is the brightest star in the constellation of Cygnus.

New!!: Circumpolar star and Deneb · See more »

Diurnal motion

Diurnal motion (lit, from dies, lit. "day") is an astronomical term referring to the apparent daily motion of stars around Earth, or more precisely around the two celestial poles.

New!!: Circumpolar star and Diurnal motion · See more »

Earth's rotation

Earth's rotation is the rotation of Planet Earth around its own axis.

New!!: Circumpolar star and Earth's rotation · See more »

Equator

An equator of a rotating spheroid (such as a planet) is its zeroth circle of latitude (parallel).

New!!: Circumpolar star and Equator · See more »

Fresno, California

Fresno (Spanish for "ash tree") is a city in California, United States, and the county seat of Fresno County.

New!!: Circumpolar star and Fresno, California · See more »

Horizon

The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth's surface, and those that do not.

New!!: Circumpolar star and Horizon · See more »

Horizontal coordinate system

The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane.

New!!: Circumpolar star and Horizontal coordinate system · See more »

Hydrus

Hydrus is a small constellation in the deep southern sky.

New!!: Circumpolar star and Hydrus · See more »

Isles of Scilly

The Isles of Scilly (Syllan or Enesek Syllan) is an archipelago off the southwestern tip of Cornwall.

New!!: Circumpolar star and Isles of Scilly · See more »

Latitude

In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface.

New!!: Circumpolar star and Latitude · See more »

London

London is the capital and most populous city of England and the United Kingdom.

New!!: Circumpolar star and London · See more »

Louisville, Kentucky

Louisville is the largest city in the Commonwealth of Kentucky and the 29th most-populous city in the United States.

New!!: Circumpolar star and Louisville, Kentucky · See more »

Musca

Musca is a small constellation in the deep southern sky.

New!!: Circumpolar star and Musca · See more »

North Pole

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is (subject to the caveats explained below) defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.

New!!: Circumpolar star and North Pole · See more »

Northern celestial hemisphere

The Northern Celestial Hemisphere, or the Northern Sky, is the northern half of the celestial sphere; that is, it lies north of the celestial equator.

New!!: Circumpolar star and Northern celestial hemisphere · See more »

Northern Hemisphere

The Northern Hemisphere is the half of Earth that is north of the Equator.

New!!: Circumpolar star and Northern Hemisphere · See more »

Patagonia

Patagonia is a sparsely populated region located at the southern end of South America, shared by Argentina and Chile.

New!!: Circumpolar star and Patagonia · See more »

Pole star

Pole star or polar star refers to a star, preferably bright, closely aligned to the axis of rotation of an astronomical object.

New!!: Circumpolar star and Pole star · See more »

San Francisco

San Francisco (initials SF;, Spanish for 'Saint Francis'), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California.

New!!: Circumpolar star and San Francisco · See more »

South America

South America is a continent in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere.

New!!: Circumpolar star and South America · See more »

South Pole

The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface.

New!!: Circumpolar star and South Pole · See more »

Southern Hemisphere

The Southern Hemisphere is the half of Earth that is south of the Equator.

New!!: Circumpolar star and Southern Hemisphere · See more »

Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

New!!: Circumpolar star and Star · See more »

Sun

The Sun is the star at the center of the Solar System.

New!!: Circumpolar star and Sun · See more »

Tangent

In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight line that "just touches" the curve at that point.

New!!: Circumpolar star and Tangent · See more »

Tropic of Cancer

The Tropic of Cancer, also referred to as the Northern Tropic, is the most northerly circle of latitude on Earth at which the Sun can be directly overhead.

New!!: Circumpolar star and Tropic of Cancer · See more »

Tropic of Capricorn

The Tropic of Capricorn (or the Southern Tropic) is the circle of latitude that contains the subsolar point on the December (or southern) solstice.

New!!: Circumpolar star and Tropic of Capricorn · See more »

Tulsa, Oklahoma

Tulsa is the second-largest city in the state of Oklahoma and 47th-most populous city in the United States.

New!!: Circumpolar star and Tulsa, Oklahoma · See more »

Ursa Major

Ursa Major (also known as the Great Bear) is a constellation in the northern sky, whose associated mythology likely dates back into prehistory.

New!!: Circumpolar star and Ursa Major · See more »

Ursa Minor

Ursa Minor (Latin: "Lesser Bear", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the Northern Sky.

New!!: Circumpolar star and Ursa Minor · See more »

Vanishing point

A vanishing point is a point on the image plane of a perspective drawing where the two-dimensional perspective projections (or drawings) of mutually parallel lines in three-dimensional space appear to converge.

New!!: Circumpolar star and Vanishing point · See more »

Vega

Vega, also designated Alpha Lyrae (α Lyrae, abbreviated Alpha Lyr or α Lyr), is the brightest star in the constellation of Lyra, the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus.

New!!: Circumpolar star and Vega · See more »

Virginia Beach, Virginia

Virginia Beach is an independent city located on the southeastern coast of the Commonwealth of Virginia in the United States.

New!!: Circumpolar star and Virginia Beach, Virginia · See more »

Voyages of Christopher Columbus

In 1492, a Spanish-based transatlantic maritime expedition led by Christopher Columbus encountered the Americas, a continent which was largely unknown in Europe and outside the Old World political and economic system.

New!!: Circumpolar star and Voyages of Christopher Columbus · See more »

Redirects here:

Circumpolar circle, Circumpolar stars.

References

[1] https://en.wikipedia.org/wiki/Circumpolar_star

OutgoingIncoming
Hey! We are on Facebook now! »