List of plutoid candidates
Encyclopedia
At present, the International Astronomical Union
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...

 classifies five objects as dwarf planet
Dwarf planet
A dwarf planet, as defined by the International Astronomical Union , is a celestial body orbiting the Sun that is massive enough to be spherical as a result of its own gravity but has not cleared its neighboring region of planetesimals and is not a satellite...

s: , , , , and , though dozens of others are thought likely to be classified as such in the future. The qualifying feature of dwarf planets is that they must "have sufficient mass for their self-gravity to overcome rigid body forces so that they assume a hydrostatic equilibrium
Hydrostatic equilibrium
Hydrostatic equilibrium or hydrostatic balance is the condition in fluid mechanics where a volume of a fluid is at rest or at constant velocity. This occurs when compression due to gravity is balanced by a pressure gradient force...

 (near-spherical shape)." Those dwarf planets lying beyond the orbit of Neptune
Neptune
Neptune is the eighth and farthest planet from the Sun in the Solar System. Named for the Roman god of the sea, it is the fourth-largest planet by diameter and the third largest by mass. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times...

 are termed "plutoids", after Pluto. Except for Pluto and Ceres, observations are insufficient for direct classification. However, based on present knowledge of how icy bodies gravitationally relax into equilibrium shapes, there are currently about 73 potential candidates amongst the population of trans-Neptunian object
Trans-Neptunian object
A trans-Neptunian object is any minor planet in the Solar System that orbits the Sun at a greater distance on average than Neptune.The first trans-Neptunian object to be discovered was Pluto in 1930...

s (TNOs). It is estimated that there are around 200 dwarf planets in the Kuiper belt
Kuiper belt
The Kuiper belt , sometimes called the Edgeworth–Kuiper belt, is a region of the Solar System beyond the planets extending from the orbit of Neptune to approximately 50 AU from the Sun. It is similar to the asteroid belt, although it is far larger—20 times as wide and 20 to 200 times as massive...

 and up to 2000 in the region beyond. The first trans-Neptunian object discovered since Pluto that is a solid dwarf planet candidate is , and is estimated by the Spitzer Space Telescope
Spitzer Space Telescope
The Spitzer Space Telescope , formerly the Space Infrared Telescope Facility is an infrared space observatory launched in 2003...

 to be about 575 km in diameter.

Changes to IAU naming procedures

The IAU has modified its nomenclature procedures such that objects considered highly likely to be plutoids receive differing treatment when receiving names than other TNOs. Objects that have an absolute magnitude
Absolute magnitude
Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth...

 less than +1 (and hence a mathematically-delimited minimum diameter of 838 km) will be overseen by two naming committees rather than one. Once named, the objects are declared to be dwarf planets by the IAU. Makemake and Haumea are the only TNOs to have proceeded through the naming process as presumed plutoids.

Candidates

Mike Brown estimates that at a diameter somewhere between 200 and 400 km, an icy body relaxes into hydrostatic equilibrium. Thus, all TNOs listed are those known or suspected to be 400 km or above in diameter. However, diameter estimates vary widely, and they are therefore ordered here by their absolute magnitudes, H, rather than diameter. Theoretical minimum diameters correspond to a maximum albedo
Albedo
Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it...

 of 1. But many borderline candidates are thought to be dark, and therefore substantially larger than this lower limit due to tholin
Tholin
Tholin [after the ancient Greek word meaning "not clear"] is a heteropolymer molecule formed by solar ultraviolet irradiation of simple organic compounds such as methane or ethane. Tholins do not form naturally on modern-day Earth, but are found in great abundance on the surface of icy bodies in...

s causing a red-sloped reflectance spectrum
Spectral slope
In astrophysics and planetary science, spectral slope, also called spectral gradient , is a measure of dependence of the reflectance on the wavelength....

. Eris has a high albedo of 0.8–0.9, and the Haumea family
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

 are also thought to be bright.

The list is also further complicated by smaller candidates such as 1999 TC36
(47171) 1999 TC36
' is a system comprising three trans-Neptunian objects . It was discovered in 1999 by Eric P. Rubenstein and Louis-Gregory Strolger during an observing run at Kitt Peak National Observatory . Dr. Rubenstein was searching images taken by Dr. Strolger as part of the Low-Z Supernova Search program...

 that are discovered to be binary or triple systems. Plutino
Plutino
In astronomy, a plutino is a trans-Neptunian object in 2:3 mean motion resonance with Neptune. For every 2 orbits that a plutino makes, Neptune orbits 3 times. Plutinos are named after Pluto, which follows an orbit trapped in the same resonance, with the Italian diminutive suffix -ino...

 1999 TC36 was resolved as a triple system by the Hubble
Hubble Space Telescope
The Hubble Space Telescope is a space telescope that was carried into orbit by a Space Shuttle in 1990 and remains in operation. A 2.4 meter aperture telescope in low Earth orbit, Hubble's four main instruments observe in the near ultraviolet, visible, and near infrared...

 since the system is currently only 30.7 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

 from the Sun (just beyond the orbit of Neptune
Neptune
Neptune is the eighth and farthest planet from the Sun in the Solar System. Named for the Roman god of the sea, it is the fourth-largest planet by diameter and the third largest by mass. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times...

).

At present, is the only identified dwarf planet in the asteroid belt
Asteroid belt
The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets...

. At the time it announced the term "plutoid", the IAU noted that "current scientific knowledge lends credence to the belief that Ceres is the only object of its kind. Therefore, a separate category of Ceres-like dwarf planets will not be proposed at this time." The likeliest exception would be 4 Vesta
4 Vesta
Vesta, formally designated 4 Vesta, is one of the largest asteroids, with a mean diameter of about . It was discovered by Heinrich Wilhelm Olbers on March 29, 1807, and is named after the Roman virgin goddess of home and hearth, Vesta....

, the asteroid belt's second-most massive body; Vesta appears to have a fully differentiated interior and was therefore at least in equilibrium at some point in its history. The third-most massive object, 2 Pallas
2 Pallas
Pallas, formally designated 2 Pallas, is the second asteroid to have been discovered , and one of the largest. It is estimated to constitute 7% of the mass of the asteroid belt, and its diameter of 530–565 km is comparable to, or slightly larger than, that of 4 Vesta. It is however 20%...

, has a somewhat irregular surface, and is thought to have only a partially differentiated interior. Mike Brown estimates that, since rocky objects become rounded far less easily than icy objects, rocky objects below 900 km in diameter may not be in hydrostatic equilibrium.

Spitzer alpha candidates

The following alpha list only contains candidates that the Spitzer Space Telescope
Spitzer Space Telescope
The Spitzer Space Telescope , formerly the Space Infrared Telescope Facility is an infrared space observatory launched in 2003...

 has estimated to have diameters greater than 600 km. is not included on this alpha list since it has not been observed by Spitzer. Even though has a dimmer absolute magnitude (H) than other objects on this list, it has a low albedo.
Name(H)Spitzer
Spitzer Space Telescope
The Spitzer Space Telescope , formerly the Space Infrared Telescope Facility is an infrared space observatory launched in 2003...


Size (km)
Spitzer
Albedo
V–R
1.6 <1600 >0.16 0.78
3.8 1150 0.03 0.67
2.3 946 0.28±0.04 0.37
2.5 844 0.199 0.64
3.2 734 0.117 0.56
4.0 725 0.058 0.59
3.8 726 0.084 0.38
4.0 686 0.12 0.36
3.6 681 0.115 0.57
3.9 677 0.08±0.02 0.52
3.2 650 0.12 0.61

Under 3

These TNOs are over a thousand km across when assuming a generic albedo of 0.09, and have theoretical minimum diameters greater than 334 km.
Name |H|Category |Diameter (km) |Min.
diam.
|Mass
(1020 kg)
|Average distance
from the Sun (AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

)
by by others
1.58 detached object
Detached object (astronomy)
Detached objects are a dynamical class of bodies in the outer Solar System beyond the orbit of Neptune. These objects have orbits whose points of closest approach to the Sun are sufficiently distant from the gravitational influence of Neptune that they are essentially unaffected by Neptune and the...

 
1800 1700 < 1600 650 8.3–70? 486.0
2.00 SDO
Scattered disc
The scattered disc is a distant region of the Solar System that is sparsely populated by icy minor planets, a subset of the broader family of trans-Neptunian objects. The scattered-disc objects have orbital eccentricities ranging as high as 0.8, inclinations as high as 40°, and perihelia greater...

 
1834 900–1400 532 67
2.30 plutino
Plutino
In astronomy, a plutino is a trans-Neptunian object in 2:3 mean motion resonance with Neptune. For every 2 orbits that a plutino makes, Neptune orbits 3 times. Plutinos are named after Pluto, which follows an orbit trapped in the same resonance, with the Italian diminutive suffix -ino...

 
1100 901 875–1020 460 6.32 39.34
2.48 cubewano
Cubewano
A classical Kuiper belt object, also called a cubewano is a low-eccentricity Kuiper belt object that orbits beyond Neptune and is not controlled by an orbital resonance with Neptune. Cubewanos have orbits with semi-major axes in the 40–50 AU range and, unlike Pluto, do not cross Neptune’s orbit...

 
1290 842 820–960 426 13–19 43.58

Between 3 and 4

These minor planet
Minor planet
An asteroid group or minor-planet group is a population of minor planets that have a share broadly similar orbits. Members are generally unrelated to each other, unlike in an asteroid family, which often results from the break-up of a single asteroid...

s have theoretical minimum diameters of 213–336 km.
Name |H|Category |Diameter (km) |Mass
(1020 kg)
|Average distance
from the Sun (AU)
by by others
3.19 haumeid
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

800 709 286 0.2 43.11
Vesta
4 Vesta
Vesta, formally designated 4 Vesta, is one of the largest asteroids, with a mean diameter of about . It was discovered by Heinrich Wilhelm Olbers on March 29, 1807, and is named after the Roman virgin goddess of home and hearth, Vesta....

 
3.20 asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 
578×560×458 km 2.59 2.361
3.20 plutino 980 727 430–910; 900–1230 ~3? 39.65
3.26 cubewano 940 766 625–850; 770–1010 ~4? 47.30
3.40 SDO 919 925 (550–1240) 113
3.40 cubewano 919 925 (550–1240) 43
(229762) 2007 UK126  3.40 SDO 919 530–1190 73
3.40 cubewano 740 838 45.94
3.60 cubewano 810 649 570–795 ~3? 42.53
3.70 cubewano 780 785 755–1025; 480–800 42.90
3.70 cubewano 1008 1015 47.99
3.77 cubewano 740 728 600–850 41.90
3.80 semi-detached
Detached object (astronomy)
Detached objects are a dynamical class of bodies in the outer Solar System beyond the orbit of Neptune. These objects have orbits whose points of closest approach to the Sun are sufficiently distant from the gravitational influence of Neptune that they are essentially unaffected by Neptune and the...

 
765 67.3
3.81 SDO 765 462–1033 69.4
3.87 5:2
Resonant trans-Neptunian object
In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object in mean motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2, 2:3 etc...

 SDO
710 1150 920–1480 ~15? 55.02
3.90 cubewano 740 730 41.53
3.90 cubewano 680 681 610–750 ~3? 42.23
3.90 SDO 697 421-942 184.4
3.95 haumeid
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

 
650 666 230 km 43.24
3.99 plutino
Plutino
In astronomy, a plutino is a trans-Neptunian object in 2:3 mean motion resonance with Neptune. For every 2 orbits that a plutino makes, Neptune orbits 3 times. Plutinos are named after Pluto, which follows an orbit trapped in the same resonance, with the Italian diminutive suffix -ino...

 
610 636 540–925 39.27

Between 4 and 5

Name |H|Category |Diameter (km) |Mass
(1020 kg)
|Average distance
from the Sun (AU)
by by others
4.0 haumeid
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

 
697 252 km 43
4.0 plutino 710 686 590–785 km 39.45
4.0 cubewano 696 46.98
4.05 9:4
Resonant trans-Neptunian object
In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object in mean motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2, 2:3 etc...

 SDO
620 636 51.40
Pallas
2 Pallas
Pallas, formally designated 2 Pallas, is the second asteroid to have been discovered , and one of the largest. It is estimated to constitute 7% of the mass of the asteroid belt, and its diameter of 530–565 km is comparable to, or slightly larger than, that of 4 Vesta. It is however 20%...

 
4.13 asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 
582×556×500±9 km
2.11±0.26
2.772
4.2 cubewano 380-860 45.8
4.2 cubewano 380-860 46.5
120347 Salacia  4.3 cubewano 560 548 41.97
4.3 plutino 591
4.3 other TNO 540 554 38.72
4.4 cubewano 350-784 44.4
4.4 cubewano 580 350-784 44.05
4.4 SDO 210
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

-584
54.2
4.4 SDO 583 350-784 106
4.4 SDO 560 580 89.73
4.4 cubewano 580
(Buffy) 4.47 SDO 540 572 57.36
4.5 cubewano 330-750 42
4.5 cubewano? 560 560 <560(?) 39.01
4.5 plutino 529 39.1
4.56 haumeid
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

 
540 900 200 km 43.19
4.6 lost  520 522 ~45
4.7 cubewano 305-680 43.2
4.7 plutino 490 420 39.30
4.7 2:5
Resonant trans-Neptunian object
In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object in mean motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2, 2:3 etc...

 TNO
490 461 461±45 1? 55.72
38628 Huya
38628 Huya
38628 Huya is a trans-Neptunian object . It was discovered in March 2000 by Ignacio Ferrin and announced on 24 October 2000. It is classified as a plutino being in a 2:3 mean motion resonance with Neptune. With a Spitzer size estimate of , this plutino is also a likely dwarf-planet. It is expected...

 
4.7 plutino 480 506 532±25 1.6? 39.76
4.7 detached 505 76.38
4.7 plutino 505 39.18
4.73 plutino 440 A1=286 A2=265 0.12 39.27
4.7 plutino 522 39.56
4.7 detached 450 505 49.9
4.8 haumeid
Haumea family
The Haumea family is the only identified trans-Neptunian collisional family; that is, the only group of trans-Neptunian objects with similar orbital parameters and spectra that suggest they originated in the disruptive impact of a progenitor body...

 
470 702 174 km 41.64
4.8 detached
Detached object (astronomy)
Detached objects are a dynamical class of bodies in the outer Solar System beyond the orbit of Neptune. These objects have orbits whose points of closest approach to the Sun are sufficiently distant from the gravitational influence of Neptune that they are essentially unaffected by Neptune and the...

 
430 440 49.77
4.8 8:3
Resonant trans-Neptunian object
In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object in mean motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2, 2:3 etc...

 TNO
430 431 57.77
19521 Chaos
19521 Chaos
19521 Chaos , is a cubewano, a Kuiper-belt object not in resonance with any planet. It is a likely dwarf planet. Chaos was discovered in 1998 by the Deep Ecliptic Survey, with Kitt Peak's 4 m telescope. Assuming it has an albedo of 0.09, the absolute magnitude of 4.9 would make it about...

 
4.9 cubewano 450 745 45.56
4.9 plutino 430 457 39.22
4.9 cubewano 410 440 46.18
4.9 SDO 461 67
5.0 cubewano 430 440 44.65

Above 5

Name H Category Diameter (km) Average distance
from the Sun (AU)
5.0 twotino  410, 400 47.67
5.1 cubewano 410, 305 43.87
5.1 SDO 410, 426 43.69
5.2 SDO 401 94.88
5.2 lost  400 ~56
5.4 SDO 632, 460-690 83
5.4 cubewano 560, 396 43.65
Hygiea
10 Hygiea
10 Hygiea is an asteroid located in the asteroid belt. With somewhat oblong diameters of 350–500 km, and a mass estimated to be 2.9% of the total mass of the belt, it is the fourth largest asteroid by volume and mass...

 
5.43 asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 
500×385×350 3.139
5.3 SDO 510, 440 47.08
5.8 cubewano 460 37.93


Candidates with absolute magnitudes (H) dimmer than H=6, are not included since even assuming a dark albedo of 0.04 results in an estimated size less than 400 km.

Probable per Brown

Mike Brown considers the following bodies, ranked by estimated size, to be "probably" plutoids. Asteroids are not considered.

The terms for varying degrees of likelihood are:
Near certainty: Sufficient confidence to say these must be in hydrostatic equilibrium even if predominantly rocky.
Highly likely: Estimated/measured to be over 600 km. The size would have to be "grossly in error" or they would have to be primarily rocky to not be dwarf planets.
Likely: Estimated/measured to be over 500 km. Uncertainties in measurement mean that some of these will be significantly smaller and thus doubtful.
Probable: Estimated/measured to be over 400 km. Expected to be dwarf planets if they are icy and that figure is correct.

Probable plutoids (as of 2011 Aug 24)
rank name diameter
(km)
albedo
(%)
absolute
magnitude
(H)
comments likelihood
1 2330 99 −1.1 (measured) near certainty
2 Pluto
Pluto
Pluto, formal designation 134340 Pluto, is the second-most-massive known dwarf planet in the Solar System and the tenth-most-massive body observed directly orbiting the Sun...

 
2330 66 −0.7 (measured) near certainty
3 1500 69 0.2 (measured) near certainty
4 1440 79 0.1 (measured) near certainty
5 2007 OR10  1420 19 1.7 (estimate) near certainty
6 1400 22 1.6 (estimate) near certainty
7 2002 TC302  1150 4 3.8 (very large uncertainty:
likely smaller)
highly likely
8 980 18 2.6 (measured) near certainty
9 950 25 2.3 (measured) near certainty
10 2007 UK126
2007 UK126
', also written as 2007 UK126, is a scattered disc object with a bright absolute magnitude of 3.4. This qualifies it as one of the largest dwarf-planet candidates. , Mike Brown lists it as a highly likely dwarf planet....

 
748 15 3.4 highly likely
11 2005 QU182
2005 QU182
', also written as 2005 QU182, is a trans-Neptunian object with a bright absolute magnitude of 3.4. This qualifies it as one of the largest dwarf-planet candidates...

 
748 15 3.4 highly likely
12 2003 MW12  748 15 3.4 highly likely
13 2005 UQ513  748 15 3.4 highly likely
14 2002 AW197  734 15 3.4 (measured) highly likely
15 2002 MS4
2002 MS4
' is a Trans-Neptunian object . It was discovered in 2002 by Chad Trujillo and Michael E. Brown. It is classified as a cubewano by the Minor Planet Center.It is very likely a dwarf planet...

 
726 12 3.7 (measured) highly likely
16 2007 JJ43
2007 JJ43
' is a trans-Neptunian object orbiting the Sun near the outer edge of the Kuiper belt. Based on how bright it appears in telescopes, it is thought likely to be a plutoid , but is not yet formally recognized as such by the International Astronomical Union.Its discovery images were taken in 2007...

 
694 13 3.7 highly likely
17 2003 AZ84
2003 AZ84
', also written as 2003 AZ84, is a plutino, like Pluto, in a 2:3 resonance with Neptune. It is very likely a dwarf planet. It was discovered on January 13, 2003 by C. Trujillo and M. Brown using the Samuel Oschin telescope in the Palomar Observatory...

 
685 15 3.6 (measured) highly likely
18 2002 UX25  681 13 3.7 (measured) highly likely
19 2006 QH181
2006 QH181
', also written as 2006 QH181, is a trans-Neptunian object. It is very likely a dwarf planet. It is part of the scattered disc. It may be a detached object since a perihelion of 37.6 AU may place it outside of the direct influence of Neptune, or it could have a 5:1 resonance with Neptune...

 
677 12 3.8 highly likely
20 2010 EK139
2010 EK139
' is a trans-Neptunian object orbiting the Sun in the scattered disc. It was discovered in 2010 by astronomers from the OGLE team led by Andrzej Udalski from Warsaw University...

 
677 12 3.8 highly likely
21 2004 GV9  677 10 4.0 (measured) highly likely
22 2005 RN43  661 12 3.9 highly likely
23 2010 KZ39
2010 KZ39
', also written as 2010 KZ39, is a trans-Neptunian object with an absolute magnitude of 3.9. It is very likely a dwarf planet.-Characteristics:It has been observed 19 times over two oppositions. It is currently 46.3 AU from the Sun...

 
661 12 3.9 highly likely
24 650 21 3.3 (measured) highly likely
25 2004 XA192  644 11 4.0 highly likely
26 2003 VS2  629 11 4.1 highly likely
27 2001 UR163  613 10 4.2 highly likely
28 613 10 4.2 highly likely
29 2004 PF115  613 10 4.2 highly likely
30 2010 RF43  613 10 4.2 highly likely
31 2010 RE64
2010 RE64
', also written as 2010 RE64, is a trans-Neptunian object with an absolute magnitude of 4.2. It is very likely a dwarf planet.-Preliminary:...

 
613 10 4.2 highly likely
32 2008 ST291
2008 ST291
', also written as 2008 ST291, is a trans-Neptunian object with an absolute magnitude of 4.4. This makes it a dwarf-planet candidate.-Distance:It came to perihelion around 1954, and is currently 56.8 AU from the Sun....

 
598 10 4.3 likely
33 2003 UZ413
2003 UZ413
', also written as 2003 UZ413, is a trans-Neptunian object with an absolute magnitude of 4.4. A 2:3 orbital resonance with Neptune makes it a plutino...

 
598 10 4.3 likely
34 2010 FX86  598 10 4.3 likely
35 2005 RM43
(145451) 2005 RM43
', also written as 2005 RM43, is a trans-Neptunian object that resides in the scattered disc region beyond the Kuiper belt. It was discovered on September 9, 2005 by Andrew C. Becker, Andrew W. Puckett, and Jeremy Martin Kubica at Apache Point Observatory in Sunspot, New Mexico.It has been...

 
584 10 4.4 likely
36 2004 XR190
2004 XR190
' is a dwarf-planet candidate located in the scattered disc. Astronomers led by Lynne Jones of the University of British Columbia made the discovery as part of the using the Canada-France-Hawaii Telescope...

 
584 10 4.4 likely
37 2002 KX14  584 10 4.4 likely
38 2004 NT33
2004 NT33
' is a member of the Kuiper belt discovered in 2004. It is classified as cubewano. As of 2011, it is thought to have a diameter of about 580 km. This is up from 554 km in 2008.It is currently 38.2 AU from the Sun.- External links :*...

 
584 10 4.4 likely
39 1996 TL66  575 4 5.4 (measured) likely
40 2004 TY364  569 9 4.5 likely
41 2004 UX10  569 9 4.5 likely
42 2008 AP129  569 9 4.5 likely
43 2010 VK201  569 9 4.5 likely
44 2004 PR107  555 9 4.6 likely
45 2005 TB190  542 8 4.7 likely
46 2003 QX113
2003 QX113
', also written as 2003 QX113, is a detached object that was discovered when it was near aphelion. With an absolute magnitude of 4.9, it may qualify as a small dwarf-planet candidate....

 
542 8 4.7 likely
47 2007 JH43
2007 JH43
', also written as 2007 JH43, is a trans-Neptunian object with an absolute magnitude of 4.7. This may qualify it as a small dwarf-planet candidate...

 
542 8 4.7 likely
48 532 7 4.9 (measured) likely
49 2010 VZ98  528 8 4.8 likely
50 528 8 4.8 likely
51 2000 YW134  515 8 4.9 likely
52 2004 PG115  515 8 4.9 likely
53 2008 QY40  515 8 4.9 likely
54 2003 FY128  515 8 4.9 likely
55 2008 OG19  503 7 5.0 likely
56 2001 KA77  503 7 5.0 likely
57 2002 KW14  503 7 5.0 likely
58 2002 XV93
2002 XV93
', also written as 2002 XV93, is a trans-Neptunian object with an absolute magnitude of 4.7. A 2:3 orbital resonance with Neptune makes it a plutino.It has been observed with precovery images back to 1990.- Orbit and rotation :...

 
503 7 5.0 likely
59 2007 XV50  503 7 5.0 likely
60 2011 FW62  503 7 5.0 likely
61 500 27 3.6 (measured) probable
62 2002 WC19  490 7 5.1 probable
63 1999 CD158
1999 CD158
', also written as 1999 CD158, is a trans-Neptunian object that resides in the Kuiper belt with orbital resonance with Neptune 4:7, i.e. for every seven orbits of Neptune around the Sun, this makes four. Its diameter is about 420 km....

 
490 7 5.1 probable
64 2001 QF298
2001 QF298
', also written as 2001 QF298, is a trans-Neptunian object that resides in the Kuiper belt. It was discovered on August 19, 2001 by Marc W. Buie. is a plutino, meaning that it is locked in a 3:2 orbital resonance with Neptune much like Pluto...

 
490 7 5.1 probable
65 2010 EL139  490 7 5.1 probable
66 2010 RO64  490 7 5.1 probable
67 2011 GM27  490 7 5.1 probable
68 1996 GQ21
(26181) 1996 GQ21
', also written as 1996 GQ21, is a trans-Neptunian object that resides in the scattered disc region of the Solar System. It was discovered on April 12, 1996 by Nichole M. Danzl.-References:...

 
478 7 5.2 probable
69 2006 HH123
2006 HH123
', also written as 2006 HH123, is a lost scattered-disc object. With an absolute magnitude of 5.2, it is a dwarf-planet candidate. The preliminary orbital elements as displayed in the infobox are calculated using only three observations over a period of one day, hence its orbit is very poorly known...

 
478 7 5.2 probable
70 2010 ET65  478 7 5.2 probable
71 2010 TY53  478 7 5.2 probable
72 2008 UA332  478 7 5.2 probable
73 2010 HE79  478 7 5.2 probable
74 2002 PJ149  467 7 5.3 probable
75 2003 UA414  467 7 5.3 probable
76 2005 RS43  467 7 5.3 probable
77 2010 JK124  467 7 5.3 probable
78 2010 PU75  467 7 5.3 probable
79 1999 DE9  461 8 5.1 (measured) probable
80 1998 SN165  460 5 5.6 (measured) probable
81 1995 TL8  455 6 5.4 probable
82 2008 CT190  455 6 5.4 probable
83 2010 ER65  455 6 5.4 probable
84 2010 TR19  455 6 5.4 probable
85 2002 GJ32  455 6 5.4 probable
86 2001 QS297  455 6 5.4 probable
87 2002 CY248  455 6 5.4 probable
88 2003 QW90
2003 QW90
', also written as 2003 QW90, is a trans-Neptunian object that resides in the Kuiper belt. It was discovered on August 23, 2003, by Marc W. Buie.Diameter by 2008 was listed as 440 km.-References:...

 
455 6 5.4 probable
89 2007 PS45  455 6 5.4 probable
90 2002 JR146  444 6 5.5 probable
91 2010 TJ  444 6 5.5 probable
92 2002 XW93  444 6 5.5 probable
93 2001 YH140  444 6 5.5 probable
94 2001 XD255  444 6 5.5 probable
95 2002 GH32  444 6 5.5 probable
96 2002 XH91  444 6 5.5 probable
97 2010 EP65  444 6 5.5 probable
98 1999 TC36  415 12 4.9 (measured) probable
99 2001 FP185  411 4 6.0 (blue) probable
100 2000 CQ105  411 4 6.0 (blue) probable
101 2001 QX322  411 4 6.0 (blue) probable
102 1999 CL119 411 4 6.0 (blue) probable


Another 288 objects were listed as "possible" dwarfs, depending on composition and the accuracy of size and mass estimates.

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