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Change in wavelength of light
In physics, a redshift is an increase in the wavelength, or equivalently, a decrease in the frequency, of electromagnetic radiation (such as light). The
Redshift
Topics referred to by the same term
Look up redshift in Wiktionary, the free dictionary. Redshift is a phenomenon in physics, especially astrophysics. Redshift or red shift may also refer
Redshift_(disambiguation)
Cloud-based data warehouse service
Amazon Redshift is a data warehouse product which forms part of the larger cloud-computing platform Amazon Web Services. It is built on top of technology
Amazon_Redshift
Physical effect in general relativity
In physics and general relativity, gravitational redshift (known as Einstein shift in older literature) is the phenomenon that electromagnetic waves or
Gravitational_redshift
Observation in physical cosmology
galaxy's recessional velocity is typically determined by measuring its redshift, a shift in the frequency of light emitted by the galaxy. The discovery
Hubble's_law
Type of astronomical survey
In astronomy, a redshift survey is a survey of a section of the sky to measure the redshift of astronomical objects: usually galaxies, but sometimes other
Redshift_survey
A photometric redshift is an estimate for the recession velocity of an astronomical object such as a galaxy or quasar, made without measuring its spectrum
Photometric_redshift
An alternative to the most commonly used distance measurements for high redshift objects is to calculate their ages in relation to the Big Bang. For comparisons
List of the most distant astronomical objects
List_of_the_most_distant_astronomical_objects
Lyman-Break galaxy that is one of the oldest known galaxies
JADES-GS-z14-0 is a high-redshift Lyman-Break galaxy in the constellation Fornax that was discovered in 2024 using NIRCam as part of the James Webb Space
JADES-GS-z14-0
2008 studio album by Omnium Gatherum
The Redshift is the fourth studio album by Finnish melodic death metal band Omnium Gatherum. It is the band's second release for the Candlelight Records
The_Redshift
Active galactic nucleus (AGN) containing a supermassive black hole
usually categorized as a subclass of the more general category of AGN. The redshifts of quasars are of cosmological origin. The term quasar originated as a
Quasar
with a spectroscopic redshift. UDFy-38135539, discovered in 2009, with z=8.6, does not appear on this list because its claimed redshift is disputed. Follow-up
List_of_galaxies
Galaxy in the constellation Sextans
Cosmos Redshift 7 (also known as COSMOS Redshift 7, Galaxy Cosmos Redshift 7, Galaxy CR7 or CR7) is a high-redshift Lyman-alpha emitter galaxy. At a redshift
Cosmos_Redshift_7
Frequency change of a wave for observer relative to its source
moving away from the observer. In cosmology, the redshift of expansion is considered separate from redshifts due to gravity or Doppler motion. Distant galaxies
Doppler_effect
2002 video game
Quantum Redshift is a video game for the Xbox console, developed by Curly Monsters and published by Microsoft Game Studios in 2002. The game is a futuristic
Quantum_Redshift
which the star resides, or redshift measurement. Spectroscopic redshift measurement is preferred, while photometric redshift measurement is also used to
List_of_most_distant_stars
3D rendering software
Redshift is a GPU-accelerated 3D rendering software developed by Redshift Rendering Technologies Inc., now a subsidiary of Maxon. According to the developer's
Redshift_(renderer)
Physical hypothesis
Redshift quantization, also referred to as redshift periodicity, redshift discretization, preferred redshifts and redshift-magnitude bands, is the hypothesis
Redshift_quantization
Computer display color temperature auto-adjuster
Redshift is an application that adjusts the computer display's color temperature based upon the time of day. The program is free software and is intended
Redshift_(software)
American businessman (born 1964)
Glacier Glue Lambda Lightsail MTurk Neptune Product Advertising API RDS Redshift Rekognition Route 53 S3 SageMaker SES SNS SimpleDB SQS VPC Services Amazon
Jeff_Bezos
British electronic music group
Redshift is a British electronic music group, founded in 1996 by Mark Shreeve. Their musical style is rooted in the early to mid 1970s German electronic
Redshift_(group)
Energy driving the accelerated expansion of the universe
be used to accurately measure distances. Comparing this distance to the redshift (which measures the speed at which the supernova is receding) shows that
Dark_energy
Anglo-Australian Telescope survey, 1997–2002
In astronomy, the 2dF Galaxy Redshift Survey (Two-degree-Field Galaxy Redshift Survey), 2dF or 2dFGRS is a redshift survey conducted by the Australian
2dF_Galaxy_Redshift_Survey
Spatial distortion in cosmology
Redshift-space distortions are an effect in observational cosmology where the spatial distribution of galaxies appears squashed and distorted when their
Redshift-space_distortions
Vast empty spaces between filaments with few or no galaxies
three-dimensional mapping of the universe. Through redshift surveys, their depth was calculated from the individual redshifts of the galaxies due to the expansion of
Void_(astronomy)
In mathematics, more specifically in chromatic homotopy theory, the redshift conjecture states, roughly, that algebraic K-theory K ( R ) {\displaystyle
Redshift_conjecture
Cosmological formulas for expanding universe
small redshifts. The expressions for these distances are most practical when written as functions of redshift z {\displaystyle z} , since redshift is always
Distance_measure
Redshift is a techno-economic theory suggesting hypersegmentation[clarification needed] of information technology markets based on whether individual computing
Redshift_(theory)
American astronomer (1927-2013)
non-standard cosmology incorporating intrinsic redshift. Arp developed those views in a book, Seeing Red: Redshift, Cosmology and Academic Science, in 1998
Halton_Arp
Very distant gamma-ray burst detected in 2009
determine that its redshift is z = 8.2, making it one of the most distant objects detected at that time with a spectroscopic redshift (GN-z11, discovered
GRB_090423
Class of hypothetical redshift mechanisms
light is a class of hypothetical redshift mechanisms that was proposed as an alternative explanation for the redshift-distance relationship. These models
Tired_light
Astronomical object type
8 kpc) across. So far, Lyman-alpha blobs have been found only in the high-redshift universe because of the ultraviolet nature of the Lyman-alpha emission
Lyman-alpha_blob
Mercury, the bending of light in gravitational fields, and the gravitational redshift. The precession of Mercury was already known; experiments showing light
Tests_of_general_relativity
Astronomical concept
cosmology of the universe. The angular diameter distance to an object at redshift, z {\displaystyle z} , is expressed in terms of the comoving distance,
Angular_diameter_distance
Quasar and Lyman-alpha blob in the constellations of Canes Venatici and Coma Berenices
those objects with high redshifts. TON 618, with its luminous emission of Lyman-alpha radiation along with its high redshift, has made it one of the most
TON_618
Physical theory of the cosmos
of light elements, the cosmic microwave background (CMB) radiation, the redshift of galaxies and the large-scale structure of the universe. The uniformity
Big_Bang
Book by Halton Arp
redshift are somehow linked to close objects such as nearby galaxies. Arp also argued that some galaxies showed unusual redshifts, and that redshifts
Quasars, Redshifts and Controversies
Quasars,_Redshifts_and_Controversies
High-redshift galaxy in the constellation Ursa Major
GN-z11 is a high-redshift galaxy discovered by NASA's Hubble Space Telescope in the constellation Ursa Major. It is among the farthest galaxies from Earth
GN-z11
Star-forming galaxies at high redshift
Lyman-break galaxies are star-forming galaxies at high redshift that are selected using the differing appearance of the galaxy in several imaging filters
Lyman-break_galaxy
Extremely distant galaxy in constellation Boötes
CR2-z12-1) is a distant galaxy located in constellation Boötes with a redshift of z=11.4 dating from approximately 390 million years after the Big Bang
Maisie's_Galaxy
High-redshift Lyman-break galaxy that is one of the oldest galaxies known
JADES-GS-z13-0 is a high-redshift Lyman-break galaxy discovered by the James Webb Space Telescope (JWST) during NIRCam imaging for the JWST Advanced Deep
JADES-GS-z13-0
Map survey of the universe
The Center for Astrophysics (CfA) Redshift Survey was the first attempt to map the large-scale structure of the universe. The first survey began in 1977
CfA_Redshift_Survey
Lyman-break galaxy in the constellation Aquarius
PAN-z14-1 is a high-redshift Lyman-break galaxy in the constellation Aquarius, discovered in late 2023 by the James Webb Space Telescope as part of a pure
PAN-z14-1
Possible large cosmic structure
GRBs and measured their redshifts spectroscopically. They subdivided them to different group subsamples of different redshifts, initially with five groups
Hercules–Corona Borealis Great Wall
Hercules–Corona_Borealis_Great_Wall
Concept in cosmology
the Giant Void, which measures 1.3 billion light-years across. Based on redshift survey data, in 1989 Margaret Geller and John Huchra discovered the "Great
Large-scale structure of the universe
Large-scale_structure_of_the_universe
American astronomer (1889–1953)
the redshift remained unclear. Lemaître predicted on theoretical grounds based on Albert Einstein's equations for general relativity the redshift-distance
Edwin_Hubble
Redshift survey
6dF Galaxy Survey (Six-degree Field Galaxy Survey), 6dF or 6dFGS is a redshift survey conducted by the Anglo-Australian Observatory (AAO) with the 1.2m
6dF_Galaxy_Survey
High-redshift galaxy that is one of the oldest and most distant known galaxies
HD1 is a proposed high-redshift galaxy, which is considered (as of April 2022) to be one of the earliest and most distant known galaxies yet identified
HD1
Lyman-break galaxy in the constellation Sextans
MoM-z14 is the most distant known galaxy, with a redshift of z = 14.44. The galaxy was first imaged on May 16, 2025 by the NIRcam instrument aboard the
MoM-z14
1991 astronomical survey
The Las Campanas Redshift Survey is considered the first attempt to map a large area of the universe out to a redshift of z = 0.2. It was begun in 1991
Las_Campanas_Redshift_Survey
Enigmatic astronomical object in the constellation Boötes
distant Lyman-break galaxy with a photometric redshift (z) of 32, a dusty interloper galaxy with a redshift (z) of 6, a rogue planet or a Y2–Y3 spectral
Capotauro
Background galaxy containing a quasar
UHZ1 is a background galaxy containing a quasar. At a redshift of approximately 10.1, UHZ1 is at a distance of 13.2 billion light-years, seen when our
UHZ1
Immense galaxy filament
discovered in 1989 by Margaret Geller and John Huchra based on redshift survey data from the CfA Redshift Survey. It is not known how much further the wall extends
CfA2_Great_Wall
Lyman-break galaxy that is one of the oldest galaxies known
spectroscopic redshift of 12.34, making it one of the most distant galaxies and astronomical objects ever discovered. According to current theory, this redshift corresponds
GHZ2
Cosmological model in which the universe does not expand
After the discovery of the redshift-distance relationship (deduced by the inverse correlation of galactic brightness to redshift) by American astronomers
Static_universe
Cosmological time duration
galaxies seemed to be (the dimmer they appeared) the greater was their redshift, and thus the faster they seemed to be moving away. This was the first
Age_of_the_universe
Test of gravitational redshift
of general relativity to be verified. The measurement of gravitational redshift and blueshift by this experiment validated the prediction of the equivalence
Pound–Rebka_experiment
NASA/ESA/CSA space telescope launched in 2021
can, and objects much earlier in the history of the universe, back to redshift z≈20 (about 180 million years cosmic time after the Big Bang). For comparison
James_Webb_Space_Telescope
Possibly one of the oldest galaxies observed
CEERS-93316 is a high-redshift galaxy with a spectroscopic redshift z=4.9. Significantly, the redshift that was initially reported was photometric (z =
CEERS-93316
All of space observable from the Earth at the present
progressively redder and fainter light. For instance, objects with the current redshift z from 5 to 10 will only be observable up to an age of 4–6 billion years
Observable_universe
Trace radiation from the early universe
However, the photons have grown less energetic due to the cosmological redshift associated with the expansion of the universe. The surface of last scattering
Cosmic_microwave_background
Distant radio galaxy in the constellation of Pegasus
ILT J2336+1842 also known as ILT J233624.72+184247.9 is a high-redshift quasar, and radio galaxy at z = 6.6, equivalent to a distance of 17.55 billion
ILT_J2336+1842
Compact astronomical body
mass have a common cause. Using the principle, Einstein predicted the redshift and the lensing effect of gravity on light; his prediction of gravitational
Black_hole
One of the most distant quasars known
of 28.85 billion light-years) was the first quasar discovered beyond a redshift of z = 7. Its discovery was reported in June 2011. ULAS J1120+0641 was
ULAS_J1120+0641
High-redshift galaxy in the constellation Fornax
JADES-GS-z13-1-LA (also known as JADES-GS+53.06475-27.89024) is a high-redshift Lyman-Break galaxy in the constellation Fornax that was observed with the
JADES-GS-z13-1
Possibly one of the oldest galaxies observed
F200DB-045 is a candidate high-redshift galaxy, with an estimated redshift of approximately z = 20.4, corresponding to 168 million years after the Big
F200DB-045
Zodiac constellation straddling the celestial equator
NGC 4639 is a face-on barred spiral galaxy located 78 Mly from Earth (redshift 0.0034). Its outer arms have a high number of Cepheid variables, which
Virgo_(constellation)
Largest structures in the universe, made of galaxies
Bagoly, Zsolt (2014). "Possible structure in the GRB sky distribution at redshift two". Astronomy & Astrophysics. 561: id.L12. arXiv:1401.0533. Bibcode:2014A&A
Galaxy_filament
Some voids are known as supervoids. In the tables, z is the cosmological redshift, c the speed of light, and h the dimensionless Hubble parameter, which
List_of_voids
Astronomical survey
The DEEP2 Survey or DEEP2 was a two-phased Redshift survey of Redshift z ~ 1 galaxies (where z= a measure of speed and by extension, the distance from
DEEP2_Redshift_Survey
Multi-spectral imaging and spectroscopic redshift survey
Sky Survey (SDSS) is a major multi-spectral imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point
Sloan_Digital_Sky_Survey
List of galactic nuclei
cluster CL 1358+62). In cosmic scales distance is usually indicated by redshift (denoted by z) which is a measure of recessional velocity and inferred
List_of_quasars
Models of the universe which deviate from then-current scientific consensus
equation of state of Dark Energy for 4 common models as a function of redshift. Our current universe is at z = 0 {\displaystyle z=0} , and the cosmological
Non-standard_cosmology
2016 studio album by Cult of Luna & Julie Christmas
more seriously when Cult of Luna curated the May 2014 festival Beyond the Redshift in London. Cult of Luna wanted Christmas to participate and perform her
Mariner_(album)
Massive galaxy in the constellation Boötes
EGS-z11-R0 is a high-redshift galaxy located in the constellation Boötes. It was discovered in March 2026 using the James Webb Space Telescope. The object
EGS-z11-R0
Compact region at a galaxy's center with abnormally high luminosity
spectra were used to measure the redshifts of a growing number of quasars including 3C 48, even more distant at redshift 0.37. The enormous luminosities
Active_galactic_nucleus
Cosmological phenomenon
them. The distance can then be compared to the supernovae's cosmological redshift, which measures how much the universe has expanded since the supernova
Accelerating expansion of the universe
Accelerating_expansion_of_the_universe
Visual grouping of five galaxies
7320 indicates a small redshift (790 km/s) while the other four exhibit large redshifts (near 6,600 km/s). Since galactic redshift is proportional to distance
Stephan's_Quintet
Scientific phenomenon
symmetry. Astronomers know of three sources of redshift/blueshift: Doppler shifts; gravitational redshifts (due to light exiting a gravitational field);
Relativistic_Doppler_effect
Quasar in the constellation of Canis Minor
was first discovered by astronomer Roger Lynds, who identified its high redshift of (z) 2.877 at Kitt Peak National Observatory in May 1970, making it one
4C_05.34
Cosmological epoch c. 370,000 years after the Big Bang
atoms. Recombination occurred about 378000 years after the Big Bang (at a redshift of z = 1100). The "re-" in "recombination" is misleading, since the Big
Recombination_(cosmology)
Spectroscopic phenomenon in astronomy
moves across the face of a rotating star. The star is seen to undergo a redshift anomaly caused by the obscuration of different parts of its disk. The Rossiter–McLaughlin
Rossiter–McLaughlin_effect
Fluctuations in the density of the normal matter of the universe
recombination happened when the universe was around 379,000 years old, or at a redshift of z = 1089. At this age, the size of BAO bubbles were 450,000 light-years
Baryon_acoustic_oscillations
Type of starburst galaxy
scientific literature by Yang et al. (2017) as GPs that were at a distance of redshift z=0.05 or less, although similar galaxies had originally been named BBs
Blueberry_galaxy
Region of overdensity of galaxies
their redshifts are large enough and regular enough to reveal that they are slightly drawn towards the attraction. The variations in their redshifts are
Great_Attractor
American poet (born 1950)
Poetry and a PEN Southwest Book Award; Quipu (Copper Canyon, 2005); The Redshifting Web: Poems 1970-1998 (Copper Canyon, 1998), selected for the Balcones
Arthur_Sze
High-mass black hole seeds
collapse of a large amount of material. They putatively formed within the redshift range z=15–30, when the Universe was about 100–250 million years old. This
Direct_collapse_black_hole
Blazar in the constellation Draco
extremely distant blazar located in the constellation of Draco. It has a redshift of (z) 4.30 and is classified as a radio-loud quasar, first discovered
GB_1508+5714
Increase in distance between parts of the universe
dynamics. For photons, expansion leads to the cosmological redshift. While the cosmological redshift is often explained as the stretching of photon wavelengths
Expansion_of_the_universe
Cosmological process in the early universe
than the ionization rate. At around 379,000 years after the Big Bang (redshift z = 1089), this recombination left most normal matter in the form of neutral
Reionization
Rate at which an astronomical object moves away from an observer
spectral lines emitted by the object, known as the object's cosmological redshift. Hubble's law is the relationship between a galaxy's distance and its recessional
Recessional_velocity
Velocity of an object relative to a rest frame
z\approx v/c} for low velocities (small redshifts). This combines with the redshift from the Hubble flow and the redshift from our own motion z ⊙ {\displaystyle
Peculiar_velocity
Feature of the spectra of quasars
spectroscopy, the Gunn–Peterson trough is a feature of the spectra of bright high redshift sources, particularly quasars and gamma-ray burst afterglows, due to the
Gunn–Peterson_trough
Galaxy cluster in the constellation Phoenix
in the middle of a galaxy cluster, although other galaxies at higher redshifts have a higher starburst rate . Observations by a variety of telescopes
Phoenix_Cluster
Mathematical model of the Big Bang
an expansion of the spatial metric that is well documented, both as the redshift of prominent spectral absorption or emission lines in the light from distant
Lambda-CDM_model
Star orbiting close to Sagittarius A*
Andrea Ghez) revealed a combined transverse Doppler and gravitational redshift up to 200 km/s/c, in agreement with general relativity predictions. Additional
S2_(star)
Instrument for conducting a spectrographic survey of distant galaxies
spectra and redshifts for 18.7 million objects observed during the first 13 months of the main survey, making it the largest spectroscopic redshift dataset
Dark Energy Spectroscopic Instrument
Dark_Energy_Spectroscopic_Instrument
Hypothetical invisible cosmic material
slightly distorted because distances are estimated from observed redshifts; the redshift contains a contribution from the galaxy's so-called peculiar velocity
Dark_matter
Deep-field space image in Fornax
even higher redshifts than had currently been observed, as well as providing more information about galaxy formation at intermediate redshifts (z~2). A workshop
Hubble_Ultra-Deep_Field
British astronomer
Edinburgh where he was awarded a PhD in astrophysics in 1988 for research on redshift in radio galaxies and quasars. After seven years working in England (where
James_Dunlop_(astronomer)
REDSHIFT
REDSHIFT
REDSHIFT
REDSHIFT
Male
Egyptian
, the surname of Rameses IX.
Girl/Female
Arabic, Greek, Hindu, Indian, Marathi, Spanish
Guard-tower
Girl/Female
Hindu
Rajas good friend, Lover and life partner, Name of a flower, Sweet smelling and makes it’s presence
Girl/Female
Arabic, Muslim
Pious; Chosen; God-fearing
Male
Egyptian
, the father of Merira.
Boy/Male
Indian, Malayalam
Leader of Hunters
Boy/Male
British, English
English Place Name and Surname
Girl/Female
Hindu, Indian, Telugu
Literature of Music; Literature
Boy/Male
Gaelic
Thin.
Surname or Lastname
English
English : perhaps a respelling of the French family name Wartel, which is from a pet form of any of various Germanic personal names beginning with the element war(in) ‘guard’, ‘preserve’. The surname Wartell is recorded in England in the 1881 British census.
REDSHIFT
REDSHIFT
REDSHIFT
REDSHIFT
REDSHIFT