List of quasars


This article contains lists of quasars. More than a million quasars have been observed, so any list on Wikipedia is necessarily a selection of them.
Proper naming of quasars is by Catalogue Entry, Qxxxx±yy using B1950 coordinates, or QSO Jxxxx±yyyy using J2000 coordinates. They may also use the prefix QSR. There are currently no quasars that are visible to the naked eye.

List of quasars

This is a list of exceptional quasars for characteristics otherwise not separately listed
QuasarNotes
Twin QuasarAssociated with a possible planet microlensing event in the gravitational lens galaxy that is doubling the Twin Quasar's image.
QSR J1819+3845Proved interstellar scintillation due to the interstellar medium.
CTA-102In 1965, Soviet astronomer Nikolai S. Kardashev posited that this quasar could be the source of signals from an alien civilization.
CID-42Its supermassive black hole is being ejected and will one day become a displaced quasar.
TON 618TON 618 is a very distant and extremely luminous quasar—technically, a hyperluminous, broad-absorption line, radio-loud quasar—located near the North Galactic Pole in the constellation Canes Venatici.

List of named quasars

This is a list of quasars, with a common name, instead of a designation from a survey, catalogue or list.
QuasarOrigin of nameNotes
Twin QuasarFrom the fact that two images of the same quasar are produced by gravitational lensing.
Einstein CrossFrom the fact that gravitational lensing of the quasar forms a near perfect Einstein cross, a concept in gravitational lensing.
From the fact that there are three bright images of the same gravitationally lensed quasar.There are actually four images; the fourth is faint.
CloverleafFrom its appearance having similarity to the leaf of a clover. It has been gravitationally lensed into four images, of roughly similar appearance.
Teacup GalaxyThe name comes from the shape of the extended emission, which is shaped like the handle of a teacup. The handle is a bubble shaped by quasar winds or small-scale radio jets.Low redshift, highly obscured type 2 quasar.
PōniuāʻenaThe third most distant quasar known as of 2025, named for its early formation at most 100 million years after the Big Bang.Named as part of the A Hua He Inoa program by the ʻImiloa Astronomy Center.

List of multiply imaged quasars

This is a list of quasars that as a result of gravitational lensing appear as multiple images on Earth.
QuasarImagesLensNotes
Twin Quasar2YGKOW G1First gravitationally lensed object discovered
Triple Quasar 4Originally discovered as 3 lensed images, the fourth image is faint. It was the second gravitationally lensed quasar discovered.
Einstein Cross4Huchra's LensFirst Einstein Cross discovered
RX J1131-1231's quasar4RX J1131-1231's elliptical galaxyRX J1131-1231 is the name of the complex, quasar, host galaxy and lensing galaxy, together. The quasar's host galaxy is also lensed into a Chwolson ring about the lensing galaxy. The four images of the quasar are embedded in the ring image.
Cloverleaf4Brightest known high-redshift source of CO emission
QSO B1359+1546CLASS B1359+154 and three more galaxiesFirst sextuply-imaged galaxy
SDSS J1004+41125Galaxy cluster at z = 0.68First quasar discovered to be multiply image-lensed by a galaxy cluster and currently the third largest quasar lens with the separation between images of 15
SDSS J1029+26233Galaxy cluster at z = 0.6The current largest-separation quasar lens with 22.6 separation between furthest images
SDSS J2222+27456Galaxy cluster at z = 0.49First sextuply-lensed galaxy Third quasar discovered to be lensed by a galaxy cluster. Quasar located at z = 2.82
RX J0911.4+05514Galaxy located at z = 0.76Gravitationally lensed object discovered by the ROSAT All-Sky survey in 1997. Quasar located at z = 2.800.
CLASS B1152+1992Galaxy located at z = 0.43
HE 1104-18052Galaxy located at z = 0.72Also known as Double Hamburger.
HE 2149-27452Galaxy at z = 0.60Gravitationally lensed broad absorption object at z = 2.033
FBQ 0951+26352Galaxy located at z = 0.26
HE0435-12234Elliptical galaxy of HE0435-1223 at z = 0.45Quasar located at z = 1.689. Components arranged in cross figuration.
SBS 0909+5322Lens galaxy of SBS 0909+532 at z = 0.83Originally interpreted as a binary quasar but later revealed as a gravitationally lensed object.
UM 6732Lens galaxy at z = 0.49Quasar located at at z = 2.71, first discovered by J. Surdej
CTQ 3272Lens galaxy between z = 0.4 and z= 0.6
CTQ 4142Discovered in 1999. Quasar located at z = 1.29.
HE 0230-21305Complex lensed system. Quasar located at z = 2.130.
SDSS J1001+50272Lens galaxy at z = 0.3
SDSS J1206+43322Lens galaxy at z = 0.74
SDSS J0246-08252Lens galaxy at z = 0.724Discovered by Scott Burles.
SDSS J0904+15122Discovered in the SDSS Quasar Lens Search
SDSS J1054+27332Discovered in the SDSS Quasar Lens Search
SDSS J1620+12032Lens galaxy at z = 0.39Discovered in the SDSS Quasar Lens Search. Quasar located at z = 1.158
SDSS J0746+44032Lens galaxy at z = 0.513Discovered in 2007. Quasar located at z = 2.00

List of visual quasar associations

This is a list of double quasars, triple quasars, and the like, where quasars are close together in line-of-sight, but not physically related.

List of physical quasar groups

This is a list of binary quasars, trinary quasars, and the like, where quasars are physically close to each other.
QuasarsCountNotes
quasars of SDSS J0841+3921 protocluster4First quasar quartet discovered.
LBQS 1429-008 3First quasar triplet discovered.
It was first discovered as a binary quasar, before the third quasar was found.
QQ2345+007

Large Quasar Groups

Large quasar groups are bound to a filament of mass, and not directly bound to each other.
LQGCountNotes
Webster LQG
5First LQG discovered. At the time of its discovery, it was the largest structure known.
Huge-LQG
73The largest structure known in the observable universe, as of 2013.

List of quasars with apparent superluminal jet motion

This is a list of quasars with jets that appear to be superluminal due to relativistic effects and line-of-sight orientation. Such quasars are sometimes referred to as superluminal quasars.
QuasarSuperluminalityNotes
3C 2794cFirst quasar discovered with superluminal jets
3C 1797.6cFifth discovered, first with double lobes
3C 273This is also the first quasar ever identified
3C 216
3C 345
3C 380
4C 69.21
4C 39.25
4C 38.41
8C 1928+738
PKS 0637-752

Quasars that have a recessional velocity greater than the speed of light are very common. Any quasar with z > 1 is receding faster than c, while z exactly equal to 1 indicates recession at the speed of light. Early attempts to explain superluminal quasars resulted in convoluted explanations with a limit of z = 2.326, or in the extreme z < 2.4. The majority of quasars lie between z = 2 and z = 5.

Most distant quasars

In 1964 a quasar became the most distant object in the universe for the first time. Quasars would remain the most distant objects in the universe until 1997, when a pair of non-quasar galaxies would take the title.
In cosmic scales distance is usually indicated by redshift which is a measure of recessional velocity and inferred distance due to cosmological expansion.
TypeQuasarDateDistanceNotes
Most distantUHZ12023z = 10.2
Most distant radio loud quasarQSO B1425+3326 / QSO J1427+33122008z = 6.12
Most distant radio quiet quasar
Most distant OVV quasar

QuasarDateDistanceNotes
UHZ12023–z = 10.2Current distance record holder
QSO J0313−18062021–2023z = 7.64
ULAS J1342+09282017–2021z = 7.54
ULAS J1120+06412011–2017z = 7.085Not the most distant object when discovered. First quasar with z > 7.
CFHQS J2329-0301
2007–2011z = 6.43Not the most distant object when discovered. It did not exceed IOK-1, which was discovered in 2006.
SDSS J114816.64+525150.3
2003–2007z = 6.419Not the most distant object when discovered. It did not exceed HCM 6A galaxy lensed by Abell 370 at z = 6.56, discovered in 2002. Also discovered around the time of discovery was a new most distant galaxy, SDF J132418.3+271455 at z = 6.58.
SDSS J1030+0524
2001–2003z = 6.28Most distant object when discovered. First object with z > 6.
SDSS 1044-0125
2000–2001z = 5.82Most distant object when discovered. It exceeded galaxy SSA22-HCM1 as the most distant object.
RD300
2000z = 5.50Not the most distant object when discovered. It did not surpass galaxy SSA22-HCM1.
SDSSp J120441.73−002149.6
2000z = 5.03Not the most distant object when discovered. It did not surpass galaxy SSA22-HCM1.
SDSSp J033829.31+002156.3
1998–2000z = 5.00First quasar discovered with z > 5. Not the most distant object when discovered. It did not surpass galaxy BR1202-0725 LAE.
PC 1247+34061991–1998z = 4.897Most distant object when discovered.
PC 1158+46351989–1991z = 4.73Most distant object when discovered.
Q0051-2791987–1989z = 4.43Most distant object when discovered.
Q0000-26
1987z = 4.11Most distant object when discovered.
PC 0910+5625
1987z = 4.04Most distant object when discovered; second quasar with z > 4.
Q0046–293
1987z = 4.01Most distant object when discovered; first quasar with z > 4.
Q1208+1011
1986–1987z = 3.80Most distant object when discovered and a gravitationally-lensed double-image quasar. From the time of discovery to 1991, had the least angular separation between images, 0.45.
PKS 2000-330
1982–1986z = 3.78Most distant object when discovered.
OQ172
1974–1982z = 3.53Most distant object when discovered.
OH471
1973–1974z = 3.408Most distant object when discovered; first quasar with z > 3. Nicknamed "the blaze marking the edge of the universe".
4C 05.341970–1973z = 2.877Most distant object when discovered. The redshift was so much greater than the previous record that it was believed to be erroneous, or spurious.
5C 02.56
1968–1970z = 2.399Most distant object when discovered.
4C 25.05
1968z = 2.358Most distant object when discovered.
PKS 0237-23
1967–1968z = 2.225Most distant object when discovered.
4C 12.39
1966–1967z = 2.1291Most distant object when discovered.
4C 01.02
1965–1966z = 2.0990Most distant object when discovered.
3C 91965z = 2.018Most distant object when discovered; first quasar with z > 2.
3C 1471964–1965z = 0.545First quasar to become the most distant object in the universe, beating radio galaxy 3C 295.
3C 481963–1964z = 0.367Second quasar redshift measured. Redshift was discovered after publication of 3C273's results prompted researchers to re-examine spectroscopic data. Not the most distant object when discovered. The radio galaxy 3C 295 was found in 1960 with z = 0.461.
3C 2731963z = 0.158First quasar redshift measured. Not the most distant object when discovered. The radio galaxy 3C 295 was found in 1960 with z = 0.461.

Most powerful quasars

RankQuasarDataRefs.
1SMSS J215728.21-360215.1Intrinsic bolometric luminosity of ~ 6.9 × 1014 Suns or ~ 2.6 × 1041 watts
2HS 1946+7658Intrinsic bolometric luminosity in excess of 1014 Suns or 1041 watts
3SDSS J155152.46+191104.0Luminosity of over 1041 watts
4HS 1700+6416Luminosity of over 1041 watts
5SDSS J010013.02+280225.8Luminosity of around 1.62 × 1041 watts
6SBS 1425+606Luminosity of over 1041 watts – optically brightest for z>3
J1144-4308Luminosity of 4.7 × 10 watts or M_i = −29.74 mag, optically brightest in last 9 Gyr
SDSS J074521.78+473436.2
S5 0014+813
SDSS J160455.39+381201.6z = 2.51, M = 15.84
SDSS J085543.40-001517.7