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Celestial coordinate system in spherical coordinates, with the Sun as its center
The galactic coordinate system (GCS) is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned
Galactic_coordinate_system
Celestial coordinate system used to specify the positions of celestial objects
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects. It may be implemented in spherical
Equatorial_coordinate_system
One of four circular sectors of the Milky Way galaxy
delineation of the galactic quadrants is based upon the galactic coordinate system, which places the Sun as the pole of the mapping system. The Sun is used
Galactic_quadrant
Astronomical coordinate system
The supergalactic coordinate system is a reference frame for the supercluster of galaxies that contains the Milky Way galaxy, referenced to a local relatively
Supergalactic coordinate system
Supergalactic_coordinate_system
System for specifying positions of celestial objects
still the center of the coordinate system, and the zero point is defined as the direction towards the Galactic Center. Galactic latitude resembles the
Astronomical coordinate systems
Astronomical_coordinate_systems
Coordinates comprising a distance and two angles
In mathematics, a spherical coordinate system specifies a given point in three-dimensional space by using a distance and two angles as its three coordinates
Spherical_coordinate_system
Direction in space opposite the Galactic Center from Earth
HIP 27180 appears closest to this point. In terms of the galactic coordinate system, the Galactic Center (in Sagittarius) corresponds to a longitude of 0°
Galactic_anticenter
Plane on which most of a disk-shaped galaxy's mass lies
122.932°. The Galactic Center is located at position angle 31.72° (B1950) or 31.40° (J2000) east of north. Galactic coordinate system LHS 1815b example
Galactic_plane
Plane of reference that divides the sphere into two hemispheres
ecliptic coordinate system uses the ecliptic. The galactic coordinate system uses the Milky Way's galactic equator. Plane of reference Rogers, Lucy (2008)
Fundamental plane (spherical coordinates)
Fundamental_plane_(spherical_coordinates)
Rotational center of the Milky Way galaxy
Sagittarius A as the true zero coordinate point for the system of galactic latitude and longitude. In the equatorial coordinate system the location is: RA 17h
Galactic_Center
Class of galaxy that has spiral structures extending from their cores
very bright nuclei Galactic coordinate system – Celestial coordinate system in spherical coordinates, with the Sun as its center Galactic corona – Hot, ionised
Spiral_galaxy
Spherical component of a galaxy
corona – Hot, ionised, gaseous component of a galactic halo Galactic coordinate system – Celestial coordinate system in spherical coordinates, with the Sun as
Galactic_halo
Galaxies with interacting gravitational fields
fields result in a disturbance of one another. There are several types of galactic interactions, including major interactions, minor interactions, and galaxy
Interacting_galaxy
Interstellar comet in 2025
sky. In the galactic coordinate system, U positive toward the direction of the Galactic Center, V positive toward the direction of galactic rotation, and
3I/ATLAS
3-D coordinate system centered on the Earth
Way's galactic equator. These 3D celestial coordinate systems add actual distance as the Z axis to the equatorial, ecliptic, and galactic coordinate systems
Earth-centered, Earth-fixed coordinate system
Earth-centered,_Earth-fixed_coordinate_system
Topics referred to by the same term
Luminosity Class L, a stellar classification Galactic longitude (l), in the galactic coordinate system Avogadro constant, in some German scientific literature
L_(disambiguation)
Galaxy in the constellation Cetus
Lewis A. Swift. It is located at l = 174.86, b = -44.51 in the galactic coordinate system. Discovered by Lewis Swift on September 6, 1886, NGC 1218 was
NGC_1218
Type of celestial coordinate system
The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles
Horizontal_coordinate_system
Galaxy containing the Solar System
delineation of the galactic quadrants is based upon the galactic coordinate system, which places the Sun as the origin of the mapping system. Quadrants are
Milky_Way
Tightly packed group of stars within a larger formation
galactic form Spiral galaxy – Class of galaxy that has spiral structures extending from their cores Galactic coordinate system – Celestial coordinate
Galactic_bulge
Celestial coordinate system used to describe Solar System objects
In astronomy, the ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions, orbits, and pole orientations
Ecliptic_coordinate_system
Topics referred to by the same term
Barnard list of dark nebulae (abbreviation B) Latitude (b) in the galactic coordinate system Haplogroup B (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
B_(disambiguation)
Binary star system in the constellation Reticulum
have a common origin. In the galactic coordinate system, the [U, V, W] components of the space velocity for this system are equal to [−70.2, −47.4, +16
Zeta_Reticuli
Open cluster in Perseus
located at l = 143.04°, b = −3.96° in the galactic coordinate system, and is 120 parsecs above the galactic plane. It is approximately 6m 42s east and
NGC_1220
Hot, ionised, gaseous component of a galactic halo
galactic coronas are formed and maintained. Galaxy formation and evolution – Subfield of cosmology Galactic coordinate system – Celestial coordinate system
Galactic_corona
with Star Trek: The Next Generation, the term refers to a galactic coordinate system. Galactic quadrants within Star Trek are based around a meridian that
List of Star Trek regions of space
List_of_Star_Trek_regions_of_space
Brightest star in the constellation Lyra
components in the Galactic coordinate system are: U = −10.7±3.5, V = −8.0±2.4, W = −9.7±3.0 km/s. UVW is a Cartesian coordinate system, so the Euclidean
Vega
Topics referred to by the same term
GCS may refer to: Galactic coordinate system Geographic coordinate system Game creation system Gauss Centre for Supercomputing, in Germany Google Cloud
GCS
Planetarium application
System in terms of observer-neutral celestial coordinate systems—systems that are neither geocentric nor heliocentric—such as the galactic coordinate
Digital_Universe_Atlas
Region of space
diffuse to the viewer. The Galactic Ridge has a width of 5° latitude (b) and ±40° longitude (l) in the Galactic coordinate system. The first instrument that
Galactic_ridge
Planetary nebula in the Lynx constellation
planetary nebula that when using the galactic coordinate system has a galactic longitude of 164 degrees, a galactic latitude of +31 degrees, and is the
Jones-Emberson_1
Topics referred to by the same term
to: Space velocity (astronomy), the velocity of a star in the galactic coordinate system Space velocity (chemistry), the relation between volumetric flow
Space_velocity
Conceptual tool in astronomy
Besides the equatorial and ecliptic systems, some other celestial coordinate systems, like the galactic coordinate system, are more appropriate for particular
Celestial_sphere
Subfield of cosmology
coordinate system in spherical coordinates, with the Sun as its center Galactic corona – Hot, ionised, gaseous component of a galactic halo Galactic halo –
Galaxy formation and evolution
Galaxy_formation_and_evolution
Galaxy filament containing the Perseus-Pisces Supercluster
planets. He reported it as the Great Perseus-Andromeda stratum of Extra-Galactic Nebulae. Earlier still, parts of this clustering had been reported by Walter
Perseus–Pegasus_Filament
Theoretical cosmological structure
from the galactic centre) to be 0.0088+0.0024 −0.0018 M☉ pc−3. Galaxy formation and evolution – Subfield of cosmology Galactic coordinate system – Celestial
Dark_matter_halo
Star in the constellation Microscopium
giving it the yellow-hued glow typical of G-type stars. In the galactic coordinate system, this star has space velocity components of [U, V, W] = [+13.75
Gamma_Microscopii
Star in the constellation Grus
of error). The space velocity components of this star in the Galactic coordinate system are [U, V, W] = [–7.0 ± 1.1, –25.6 ± 0.7, –15.5 ± 1.4] km/s. 0
Alpha_Gruis
Perseus Arm Scutum–Centaurus Arm Galactic ridge Galactic coordinate system Galactic longitude Galactic latitude Galaxy rotation curve Galaxy groups and clusters
Outline_of_galaxies
Structural component of some galaxies
papers that describe the galactic disk with a continuous spectrum of components with different thicknesses. Galactic coordinate system Galaxy formation and
Thick_disk
Star in the constellation Andromeda
galactic coordinate system are [U, V, W] = [−32.9±0.7, −74.3±1.3, 0.0±1.4] km/s. The trajectory of Ross 248 will bring it closer to the Solar System.
Ross_248
Star in the constellation Sagittarius
in the Sun. The space velocity components of this star in the galactic coordinate system are [U, V, W] = [–12.2, –1.0, –7.2] km s−1. It has not been identified
Ross_154
Star in the constellation Ursa Major
The space velocity components of Delta Ursae Majoris in the galactic coordinate system are [U, V, W] = [+15.35, +1.17, –11.52] km s−1. δ Ursae Majoris
Megrez
Scorpius, where the Milky Way appears brightest. galactic coordinate system galactic corona galactic nucleus The region at the center of a galaxy, usually
Glossary_of_astronomy
Red dwarf in the constellation Leo
from the Sun at a velocity of ~19 km/s. When translated into the galactic coordinate system, the motion corresponds to a space velocity of (U, V, W) = (−26
Wolf_359
Galaxy that orbits a larger galaxy due to gravitational attraction
structures of gravitationally bound conglomerations of galaxies such as galactic groups and clusters. Prior to the 20th century, the notion that galaxies
Satellite_galaxy
Galaxy filament
Extragalactic astronomy Galactic astronomy Galactic coordinate system Galactic habitable zone Galactic magnetic fields Galactic orientation Galactic quadrant Galaxy
Coma_Filament
Celestial coordinate system
gravity of the other moons disturbs it regularly. Galactic coordinate system Planetary coordinate system Archinal, B. A.; A’Hearn, M. F.; Bowell, E.; Conrad
Poles_of_astronomical_bodies
Study of the movement of stars
Milky Way's Galactic coordinate system are usually designated U, V, and W, given in km/s, with U positive in the direction of the Galactic Center, V positive
Stellar_kinematics
Unit of time
the center of the Milky Way Galaxy. One galactic year is approximately 225 million Earth years. The Solar System is traveling at an average speed of 230 km/s
Galactic_year
Brightest star in the southern constellation of Pictor
variables. The space velocity components of this star in the galactic coordinate system are U = -22, V = -20 and W = -9 km/s. Data from the Hipparcos
Alpha_Pictoris
Star in the constellation Leo
of the "old-disk population" with velocity components in the galactic coordinate system of U=+44, V=−20 and W=+20 km/s. The star is orbited by one known
Gliese_436
Fictional planet in Star Wars
region. The sun, Coruscant Prime, is the zero coordinate of the Star Wars galaxy (as opposed to being its galactic center). In Legends, Coruscant was once referred
Coruscant
Binary star system in the constellation Centaurus
of HR 4796 in the Galactic coordinate system is [U, V, W] = [−8.5, −18.3, −3.6] km s−1. This trajectory and the location of the system suggests that it
HR_4796
Star in the constellation Scutum
of 7,000 K. The space velocity components of this star in the galactic coordinate system are [U, V, W] = [−42, −17, −1] km·s−1. It is following an orbit
Delta_Scuti
Star in the constellation Pisces
belongs to the thick disk population of the Milky Way. In the galactic coordinate system, it has space velocity components of [U, V, W] = [77, −61, −8] km/s
HD_218566
Celestial coordinate system
The barycentric celestial reference system (BCRS) is a coordinate system used in astrometry to specify the location and motions of astronomical objects
Barycentric and geocentric celestial reference systems
Barycentric_and_geocentric_celestial_reference_systems
Type of starburst galaxy
these galaxies or, the escape of cosmic ray electrons via diffusion or galactic scale outflows. From the BBs sample in Yang et al. (2017), they select
Blueberry_galaxy
Fictional universe of a media franchise
as several major governing bodies throughout galactic history, such as the Galactic Republic, Galactic Empire, Rebel Alliance, New Republic, and First
Universe_of_Star_Wars
Topics referred to by the same term
centered on the Milky Way. Galactocentric cylindrical polar coordinate, astronomical coordinate system. Galactocentric distance Galactocentric orbit This disambiguation
Galactocentric
Topics referred to by the same term
may refer to: Galactic cosmic ray, a cosmic ray from outside the Solar System Geocentric Celestial Reference System, a coordinate system for near-Earth
GCR
This is a list of episodes for the series Legend of the Galactic Heroes. In-universe dates are given in the Universal Calendar (U.C.) used in the Free
List of Legend of the Galactic Heroes episodes
List_of_Legend_of_the_Galactic_Heroes_episodes
Dwarf spheroidal galaxy located in the constellation Andromeda
and declination of +34° 36′ 3.2″, in the J2000 epoch. In the galactic coordinate system, it is located at a longitude of 127.65° and a latitude of −28
Donatiello_I
Device to measure the passage of time
standards International standards Coordinated Universal Time offset UT ΔT DUT1 International Earth Rotation and Reference Systems Service ISO 31-1 ISO 8601 International
Hourglass
Topics referred to by the same term
United Galactic Navy (UGN) the third most powerful Blockland space clan of all time that operated between 2009 - 2011 - related to Geographic coordinate system
UGN
Dutch-American astronomer (1927–2012)
differential rotation in our Galaxy, and established a revised Galactic coordinate system still in use today. While still at Leiden University, he held
Gart_Westerhout
Galaxy filament
Extragalactic astronomy Galactic astronomy Galactic coordinate system Galactic habitable zone Galactic magnetic fields Galactic orientation Galactic quadrant Galaxy
Lynx–Ursa_Major_Filament
Fictional military alliance in Star Wars
defectors who oppose the Galactic Empire and its authoritarian rule. Its stated goal is to restore the governance of the previous Galactic Republic, which had
Rebel_Alliance
Line dividing one calendar day from the next
midnight-to-midnight Greenwich Mean Time (now redefined and updated as Coordinated Universal Time, or UTC), which it did agree to, "shall not interfere
International_Date_Line
Spherical triangle used in astronavigation
"P" is the galactic north pole. This is not for navigation, but for showing the difference between astronomical coordinate systems – galactic and equatorial
Navigational_triangle
Japanese strategy game
Legend of the Galactic Heroes (Japanese: 銀河英雄伝説, Hepburn: Gingahideodensetsu) is a 2008 Japanese real-time tactical simulation game for Microsoft Windows
Legend of the Galactic Heroes (2008 video game)
Legend_of_the_Galactic_Heroes_(2008_video_game)
American businessman and politician (born 1974)
since 2025. He was previously chief of staff at NASA and CEO of Virgin Galactic. He is a member of the Democratic Party. Whitesides' district covers northern
George_T._Whitesides
Galaxy filament
Extragalactic astronomy Galactic astronomy Galactic coordinate system Galactic habitable zone Galactic magnetic fields Galactic orientation Galactic quadrant Galaxy
Ursa_Major_Filament
Apparent path of the Sun on the celestial sphere
is an important reference plane and is the basis of the ecliptic coordinate system. Ancient scientists were able to calculate Earth's axial tilt by comparing
Ecliptic
Citizen science project
secondly that "the source may have had two ignition events of the active galactic nucleus with 10^7yrs in between." These suggestions reinforce the idea
Radio_Galaxy_Zoo
Superseded description of the Universe with Earth at the center
appropriate choice for Solar System mechanics and space travel. While a heliocentric frame is most useful in those cases, galactic and extragalactic astronomy
Geocentrism
Topics referred to by the same term
Quadrant (plane geometry), a sector of a two-dimensional Cartesian coordinate system Quadrant (solid geometry) HMAS Quadrant (G11), a Second World War
Quadrant
Void between celestial bodies
radiation belts, which trap solar and galactic radiation. Radiation is a threat to astronauts and space systems. It is difficult to shield against and
Outer_space
Remains of a galaxy merger in the Milky Way
{\displaystyle {\boldsymbol {v}}_{\theta }} ) of stars (see Spherical coordinate system), using data from the Gaia Mission. The stars that have merged with
Gaia_Sausage
Spaceport located in New Mexico, U.S.
spaceport are HAPSMobile Aerovironment, UP Aerospace, SpinLaunch, and Virgin Galactic. Spaceport America was officially declared open on October 18, 2011, the
Spaceport_America
repairs clocks Clock synchronization – Coordination of independent clocks Coordinated Universal Time – Primary time standard globally used to regulate clocks
History of timekeeping devices
History_of_timekeeping_devices
Current standard celestial reference system and frame
objects that serves to define, or realize, a particular coordinate frame". A reference system is a broader concept, encompassing "the totality of procedures
International Celestial Reference System and its realizations
International_Celestial_Reference_System_and_its_realizations
Celestial coordinate system
circles. The galactic coordinates of the north ecliptic pole can be calculated as ℓ = 96.38°, b = 29.81° (see celestial coordinate system). Celestial pole
Orbital_pole
American children's television series
four Galactic Sentinels. He is the Ultimate Galactic Sentinel that wields a sword and a shield. However, Knightron's power is "finite" and the Galactic Sentinels
Tattooed Teenage Alien Fighters from Beverly Hills
Tattooed_Teenage_Alien_Fighters_from_Beverly_Hills
High-energy particle, mainly originating outside the Solar System
observations of neutrinos and gamma rays from blazar TXS 0506+056 in 2018, active galactic nuclei also appear to produce cosmic rays. The term ray (as in optical
Cosmic_ray
The Galactic Patrol was an intergalactic organization in the Lensman science fiction series written by E. E. Smith. It was also the title of the third
Galactic_Patrol
1986 novel by Isaac Asimov
in favour of resettling the population to "New Earth", which the First Galactic Empire had already been terraforming. The natives appear friendly, but
Foundation_and_Earth
Local-universe structure
the Andromeda Galaxy is about 5 Mpc in diameter. Supergalactic coordinate system Galactic plane "Supergalactic Plane's missing spiral galaxies - Durham
Supergalactic_plane
Measure of observed changes in the apparent locations of stars
the random motions of stars in the Galactic halo. The components for proper motion in the equatorial coordinate system (of a given epoch, often J2000.0)
Proper_motion
American businessman (born 1964)
launches. In May 2013, Bezos met with Richard Branson, chairman of Virgin Galactic, to discuss commercial spaceflight opportunities and strategies. He has
Jeff_Bezos
Idea that small causes can have large effects
Applications of Gravitational N-Body Dynamics to Planetary Stellar and Galactic Systems. USA: CRC Press. ISBN 0-7503-0822-2. Retrieved January 6, 2014. "Computing
Butterfly_effect
Radius of the event horizon of a Schwarzschild black hole
{\displaystyle r=r_{\text{s}}} is a coordinate singularity, meaning that it is an artifact of the particular system of coordinates that was used; while
Schwarzschild_radius
Small star in constellation of Virgo
distance from the Galactic Center to range between 26.8–34.2 kly (8.2–10.5 kpc). This orbit will bring the star closer to the Solar System in the future.
Ross_128
American aerospace company, founded 1963
The corporation was the main contractor on RocketMotorTwo for Virgin Galactic's SpaceShipTwo, and designed the rocket engine for Scaled Composites, including
Sierra_Nevada_Corporation
Dutch astronomer (1851–1922)
two star streams. This discovery was later reinterpreted as evidence for galactic rotation. Kapteyn also suggested that these stellar velocities could be
Jacobus_Kapteyn
Equation of stability for a star
_{V}\rho 'd\mathbf {x} =0} . where x {\displaystyle \mathbf {x} } is the coordinate system fixed to the center of the star R {\displaystyle R} is the radius
Chandrasekhar's variational principle
Chandrasekhar's_variational_principle
Earth. Sidebars include projections (called “Astrogation”) of the coordinate system for the galaxy explained in the booklet. Chart B – Named Planets and
Star_Trek_Maps
Plaques on the Pioneer 10 and 11 space probes with pictorial messages about humanity
the Sun. A tick mark at the end of each line gives the z coordinate perpendicular to the galactic plane. If the plaque is found, only some of the pulsars
Pioneer_plaque
Change in wavelength of light
assumes nonrelativistic velocity. For cosmic rays or jets from active galactic nuclei, a relativistic relation is needed. In the theory of general relativity
Redshift
Series of Star Wars novels
organization, following the Great Jedi Purge and subsequent fall of the Galactic Empire. The Jedi Knights, reduced in number to only a handful, were slowly
The_New_Jedi_Order
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