Browse every object

All 171 hand-authored bodies on the map, grouped by what they orbit. Every one has a page with its sourced facts, its orbital elements and where it is right now. The map itself is a canvas, so this is the version that works in a screen reader, in a text browser and with JavaScript switched off.

The 3,000 procedurally generated main-belt rocks are not listed individually here: see the belt page for what they are and how they are distributed.

The Sun

The only star in the catalog that anything here orbits, and the one body sold by annual auction.

The Sun: 1 objects, with type, holder or price.

Object	Tier	Holder or price
The SunA middle-aged yellow dwarf holding 99.86 percent of the solar system's mass in place.	The Sun	$1,000

Mercury

Mercury carries 6 permanent orbital slots.

Mercury: 1 objects, with type, holder or price.

Object	Tier	Holder or price
MercuryThe smallest planet and the fastest, closing an entire year in under three Earth months.	Planet sponsor	$249

Venus

Venus carries 8 permanent orbital slots.

Venus: 1 objects, with type, holder or price.

Object	Tier	Holder or price
VenusEarth's twin by size and nothing else: 92 atmospheres of carbon dioxide at 464 C.	Planet sponsor	$249

Earth and its moon

Earth carries 8 permanent orbital slots.

Earth and its moon: 2 objects, with type, holder or price.

Object	Tier	Holder or price
EarthThe only planet where the ephemeris is computed from inside the object.	Planet sponsor	$249
The MoonThe only other world humans have stood on, and the reason Earth has tides.	Major moon	$49

Mars and its 2 moons

Mars carries 7 permanent orbital slots.

Mars and its 2 moons: 3 objects, with type, holder or price.

Object	Tier	Holder or price
MarsHalf Earth's size, a third of its gravity, and the tallest volcano in the solar system.	Planet sponsor	$249
PhobosSpiralling into Mars, and probably a rubble pile rather than solid rock.	Named minor body or small moon	$15
DeimosMars's small outer moon, so faint that it went unnoticed until 1877.	Named minor body or small moon	$15

Jupiter and its 20 moons

Jupiter carries 18 permanent orbital slots.

Jupiter and its 20 moons: 21 objects, with type, holder or price.

Object	Tier	Holder or price
JupiterTwo and a half times the mass of the other seven planets combined.	Planet sponsor	$249
IoThe most volcanically active body known, kneaded continuously by Jupiter's tides.	Major moon	$49
EuropaA cracked ice shell over a salt ocean holding perhaps twice the water of all Earth's seas.	Major moon	$49
GanymedeThe largest moon in the solar system, wider than Mercury and the only one with a magnetic field.	Major moon	$49
CallistoThe most heavily cratered surface known, essentially unchanged for four billion years.	Major moon	$49
MetisA regular moon of Jupiter about 43 km across, one orbit every 0.29 days.	Named minor body or small moon	$15
AdrasteaA regular moon of Jupiter about 16 km across, one orbit every 0.30 days.	Named minor body or small moon	$15
AmaltheaRedder than anything else near Jupiter, and less dense than water ice.	Named minor body or small moon	$15
ThebeA regular moon of Jupiter about 99 km across, one orbit every 0.68 days.	Named minor body or small moon	$15
ThemistoA captured moon of Jupiter about 8.0 km across, one orbit every 130.0 days.	Named minor body or small moon	$15
LedaA regular moon of Jupiter about 20 km across, one orbit every 240.3 days.	Named minor body or small moon	$15
HimaliaThe largest of Jupiter's captured irregular moons.	Named minor body or small moon	$15
LysitheaA regular moon of Jupiter about 42 km across, one orbit every 258.5 days.	Named minor body or small moon	$15
ElaraA captured moon of Jupiter about 86 km across, one orbit every 258.9 days.	Named minor body or small moon	$15
AnankeA captured moon of Jupiter about 28 km across, one orbit every 1.7 years, going the wrong way round.	Named minor body or small moon	$15
CarmeA captured moon of Jupiter about 46 km across, one orbit every 2.0 years, going the wrong way round.	Named minor body or small moon	$15
PasiphaeA captured moon of Jupiter about 60 km across, one orbit every 2.0 years, going the wrong way round.	Named minor body or small moon	$15
SinopeA captured moon of Jupiter about 38 km across, one orbit every 2.0 years, going the wrong way round.	Named minor body or small moon	$15
CallirrhoeA captured moon of Jupiter about 9.6 km across, one orbit every 2.1 years, going the wrong way round.	Named minor body or small moon	$15
CarpoA captured moon of Jupiter about 3.0 km across, one orbit every 1.2 years.	Named minor body or small moon	$15
ValetudoA captured moon of Jupiter about 1.0 km across, one orbit every 1.4 years.	Named minor body or small moon	$15

Saturn and its 23 moons

Saturn carries 17 permanent orbital slots.

Saturn and its 23 moons: 24 objects, with type, holder or price.

Object	Tier	Holder or price
SaturnLess dense than water, and wearing a ring system only 10 to 100 m thick.	Planet sponsor	$249
TitanThe only moon with a thick atmosphere, and the only other world with rivers, lakes and rain.	Major moon	$49
EnceladusFires plumes of salty water hundreds of kilometres into space from cracks near its south pole.	Major moon	$49
RheaSaturn's second largest moon, a battered ball of ice almost as reflective as fresh snow.	Major moon	$49
IapetusTwo-toned: one hemisphere as dark as coal, the other as bright as snow.	Major moon	$49
DioneWispy ice cliffs hundreds of metres tall, and evidence of an ocean underneath.	Major moon	$49
TethysCarries Odysseus, a crater two fifths as wide as the moon itself.	Major moon	$49
PanOrbits inside the Encke Gap and has swept it clear, wearing a ridge of ring debris at its equator.	Named minor body or small moon	$15
AtlasA regular moon of Saturn about 30 km across, one orbit every 0.60 days.	Named minor body or small moon	$15
PrometheusSteals material from Saturn's F ring on every pass, leaving visible channels.	Named minor body or small moon	$15
PandoraA regular moon of Saturn about 81 km across, one orbit every 0.63 days.	Named minor body or small moon	$15
EpimetheusTrades places with Janus every four years in the only known orbital swap.	Named minor body or small moon	$15
JanusSwaps orbits with Epimetheus every four years without either one ever colliding.	Named minor body or small moon	$15
MimasDominated by Herschel, a 130 km crater a third the width of the moon.	Named minor body or small moon	$15
TelestoA regular moon of Saturn about 25 km across, one orbit every 1.89 days.	Named minor body or small moon	$15
CalypsoA regular moon of Saturn about 19 km across, one orbit every 1.89 days.	Named minor body or small moon	$15
HeleneA regular moon of Saturn about 36 km across, one orbit every 2.74 days.	Named minor body or small moon	$15
PolydeucesA regular moon of Saturn about 2.6 km across, one orbit every 2.74 days.	Named minor body or small moon	$15
HyperionTumbles chaotically rather than rotating, the only sizeable moon known to do so.	Named minor body or small moon	$15
PhoebeCircles Saturn backwards and is very likely a captured Kuiper belt object.	Named minor body or small moon	$15
KiviuqA captured moon of Saturn about 16 km across, one orbit every 1.2 years.	Named minor body or small moon	$15
PaaliaqA captured moon of Saturn about 22 km across, one orbit every 1.9 years.	Named minor body or small moon	$15
SiarnaqA captured moon of Saturn about 40 km across, one orbit every 2.4 years.	Named minor body or small moon	$15
YmirA captured moon of Saturn about 18 km across, one orbit every 3.6 years, going the wrong way round.	Named minor body or small moon	$15

Uranus and its 17 moons

Uranus carries 13 permanent orbital slots.

Uranus and its 17 moons: 18 objects, with type, holder or price.

Object	Tier	Holder or price
UranusTipped 98 degrees onto its side, so each pole gets 42 years of continuous sunlight.	Planet sponsor	$249
TitaniaThe largest Uranian moon, split by a canyon system 1,500 km long.	Major moon	$49
OberonUranus's outermost major moon, its crater floors filled with unexplained dark material.	Major moon	$49
ArielThe brightest and youngest looking Uranian surface, resurfaced long after it formed.	Major moon	$49
UmbrielThe darkest major Uranian moon, marked by one bright ring nobody has explained.	Major moon	$49
CordeliaA regular moon of Uranus about 40 km across, one orbit every 0.33 days.	Named minor body or small moon	$15
OpheliaA regular moon of Uranus about 43 km across, one orbit every 0.38 days.	Named minor body or small moon	$15
BiancaA regular moon of Uranus about 51 km across, one orbit every 0.43 days.	Named minor body or small moon	$15
CressidaA regular moon of Uranus about 80 km across, one orbit every 0.46 days.	Named minor body or small moon	$15
DesdemonaA regular moon of Uranus about 64 km across, one orbit every 0.47 days.	Named minor body or small moon	$15
JulietA regular moon of Uranus about 94 km across, one orbit every 0.49 days.	Named minor body or small moon	$15
PortiaA regular moon of Uranus about 135 km across, one orbit every 0.51 days.	Named minor body or small moon	$15
RosalindA regular moon of Uranus about 72 km across, one orbit every 0.56 days.	Named minor body or small moon	$15
BelindaA regular moon of Uranus about 81 km across, one orbit every 0.62 days.	Named minor body or small moon	$15
PuckUranus's largest small moon, found by Voyager 2 a fortnight before closest approach.	Named minor body or small moon	$15
MirandaA 236 km moon carrying Verona Rupes, a cliff up to 20 km high.	Named minor body or small moon	$15
CalibanA captured moon of Uranus about 72 km across, one orbit every 1.6 years, going the wrong way round.	Named minor body or small moon	$15
SycoraxThe largest of Uranus's captured retrograde moons.	Named minor body or small moon	$15

Neptune and its 13 moons

Neptune carries 13 permanent orbital slots.

Neptune and its 13 moons: 14 objects, with type, holder or price.

Object	Tier	Holder or price
NeptuneFound by arithmetic before it was found by telescope, and still the windiest place known.	Planet sponsor	$249
TritonOrbits Neptune backwards, which means it was captured rather than born there.	Major moon	$49
NaiadA regular moon of Neptune about 58 km across, one orbit every 0.29 days.	Named minor body or small moon	$15
ThalassaA regular moon of Neptune about 80 km across, one orbit every 0.31 days.	Named minor body or small moon	$15
DespinaA regular moon of Neptune about 148 km across, one orbit every 0.33 days.	Named minor body or small moon	$15
GalateaA regular moon of Neptune about 158 km across, one orbit every 0.43 days.	Named minor body or small moon	$15
LarissaDiscovered from a stellar occultation in 1981 and confirmed by Voyager 2 in 1989.	Named minor body or small moon	$15
HippocampA 17 km moon probably chipped off Proteus by an ancient impact.	Named minor body or small moon	$15
ProteusAbout as large as a body can get while still being lumpy instead of round.	Named minor body or small moon	$15
NereidOne of the most eccentric moon orbits known, swinging from 1.4 to 9.7 million km out.	Named minor body or small moon	$15
HalimedeA captured moon of Neptune about 62 km across, one orbit every 5.1 years, going the wrong way round.	Named minor body or small moon	$15
SaoA captured moon of Neptune about 44 km across, one orbit every 8.0 years.	Named minor body or small moon	$15
LaomedeiaA captured moon of Neptune about 42 km across, one orbit every 8.7 years.	Named minor body or small moon	$15
NesoA captured moon of Neptune about 60 km across, one orbit every 26.8 years, going the wrong way round.	Named minor body or small moon	$15

Dwarf planets

Five exist, ever: Pluto, Ceres, Eris, Makemake and Haumea, with their moons underneath.

Dwarf planets: 10 objects, with type, holder or price.

Object	Tier	Holder or price
1 CeresThe largest object in the asteroid belt, and the only dwarf planet inside Neptune's orbit.	Dwarf planet	$99
134340 PlutoDemoted in 2006, then found in 2015 to have nitrogen glaciers and 3 km mountains of water ice.	Dwarf planet	$99
CharonHalf Pluto's diameter, which makes the pair closer to a double dwarf planet than a moon system.	Named minor body or small moon	$15
NixTumbles unpredictably around the Pluto and Charon pair.	Named minor body or small moon	$15
HydraPluto's outermost known moon, its surface almost pure water ice.	Named minor body or small moon	$15
KerberosA regular moon of Pluto about 12 km across, one orbit every 32.2 days.	Named minor body or small moon	$15
StyxA regular moon of Pluto about 10 km across, one orbit every 20.2 days.	Named minor body or small moon	$15
136199 ErisSlightly heavier than Pluto, and the discovery that forced the word 'planet' to be defined.	Dwarf planet	$99
136472 MakemakeA bright methane-frosted Kuiper belt world with one strikingly dark moon.	Dwarf planet	$99
136108 HaumeaSpun into an egg 2,100 km long by a four-hour day, and the first Kuiper belt object found to have rings.	Dwarf planet	$99

Named minor planets

Real catalogued bodies with real IAU names, from Vesta down to the near-Earth rocks spacecraft have visited.

Named minor planets: 55 objects, with type, holder or price.

Object	Tier	Holder or price
4 VestaThe second most massive asteroid, and the only one ever bright enough to see unaided.	Named minor body or small moon	$15
2 PallasA big belt asteroid on a 35 degree tilt, which is why no spacecraft has managed a visit.	Named minor body or small moon	$15
10 HygieaThe fourth largest belt object, and round enough that it may yet be reclassified a dwarf planet.	Named minor body or small moon	$15
3 JunoA main-belt asteroid about 247 km across, 2.7 AU out and 4.4 years to a lap of the Sun.	Named minor body or small moon	$15
16 PsycheA metal-rich world that may be the stripped core of a shattered protoplanet.	Named minor body or small moon	$15
15 EunomiaA main-belt asteroid about 232 km across, 2.6 AU out and 4.3 years to a lap of the Sun.	Named minor body or small moon	$15
31 EuphrosyneA main-belt asteroid about 267 km across, 3.2 AU out and 5.6 years to a lap of the Sun.	Named minor body or small moon	$15
704 InteramniaA main-belt asteroid about 306 km across, 3.1 AU out and 5.3 years to a lap of the Sun.	Named minor body or small moon	$15
511 DavidaA main-belt asteroid about 270 km across, 3.2 AU out and 5.6 years to a lap of the Sun.	Named minor body or small moon	$15
87 SylviaAn outer main-belt asteroid about 253 km across, 3.5 AU out and 6.5 years to a lap of the Sun.	Named minor body or small moon	$15
65 CybeleAn outer main-belt asteroid about 237 km across, 3.4 AU out and 6.3 years to a lap of the Sun.	Named minor body or small moon	$15
324 BambergaA main-belt asteroid about 221 km across, 2.7 AU out and 4.4 years to a lap of the Sun.	Named minor body or small moon	$15
532 HerculinaA main-belt asteroid about 168 km across, 2.8 AU out and 4.6 years to a lap of the Sun.	Named minor body or small moon	$15
13 EgeriaA main-belt asteroid about 203 km across, 2.6 AU out and 4.1 years to a lap of the Sun.	Named minor body or small moon	$15
7 IrisA main-belt asteroid about 200 km across, 2.4 AU out and 3.7 years to a lap of the Sun.	Named minor body or small moon	$15
6 HebeA main-belt asteroid about 185 km across, 2.4 AU out and 3.8 years to a lap of the Sun.	Named minor body or small moon	$15
8 FloraA main-belt asteroid about 147 km across, 2.2 AU out and 3.3 years to a lap of the Sun.	Named minor body or small moon	$15
29 AmphitriteA main-belt asteroid about 190 km across, 2.6 AU out and 4.1 years to a lap of the Sun.	Named minor body or small moon	$15
20 MassaliaA main-belt asteroid about 136 km across, 2.4 AU out and 3.7 years to a lap of the Sun.	Named minor body or small moon	$15
19 FortunaA main-belt asteroid about 200 km across, 2.4 AU out and 3.8 years to a lap of the Sun.	Named minor body or small moon	$15
24 ThemisA main-belt asteroid about 198 km across, 3.1 AU out and 5.6 years to a lap of the Sun.	Named minor body or small moon	$15
5 AstraeaA main-belt asteroid about 107 km across, 2.6 AU out and 4.1 years to a lap of the Sun.	Named minor body or small moon	$15
9 MetisA main-belt asteroid about 190 km across, 2.4 AU out and 3.7 years to a lap of the Sun.	Named minor body or small moon	$15
52 EuropaA main-belt asteroid about 304 km across, 3.1 AU out and 5.4 years to a lap of the Sun.	Named minor body or small moon	$15
216 KleopatraA dog-bone shaped metallic asteroid with two small moons.	Named minor body or small moon	$15
243 IdaThe first asteroid found to have a moon of its own, spotted by Galileo in 1993.	Named minor body or small moon	$15
951 GaspraThe first asteroid ever photographed close up, by Galileo in 1991.	Named minor body or small moon	$15
253 MathildeA remarkably dark, remarkably low-density body visited by NEAR Shoemaker in 1997.	Named minor body or small moon	$15
21 LutetiaA main-belt asteroid about 98 km across, 2.4 AU out and 3.8 years to a lap of the Sun.	Named minor body or small moon	$15
2867 SteinsA main-belt asteroid about 5.2 km across, 2.4 AU out and 3.6 years to a lap of the Sun.	Named minor body or small moon	$15
433 ErosThe first asteroid ever orbited and landed on, by NEAR Shoemaker in 2000 and 2001.	Named minor body or small moon	$15
101955 BennuSampled by OSIRIS-REx in 2020, which found a surface so loose the spacecraft sank into it.	Named minor body or small moon	$15
162173 RyuguA spinning-top rubble pile whose samples came back to Earth with Hayabusa2 in 2020.	Named minor body or small moon	$15
25143 ItokawaThe first asteroid a sample was ever returned from, by Hayabusa in 2010.	Named minor body or small moon	$15
99942 ApophisPasses inside geostationary orbit on 13 April 2029, closer than some communications satellites.	Named minor body or small moon	$15
4179 ToutatisA near-Earth asteroid (Apollo group) about 5.4 km across, 2.5 AU out and 4.1 years to a lap of the Sun.	Named minor body or small moon	$15
1620 GeographosA near-Earth asteroid (Apollo group) about 2.6 km across, 1.2 AU out and 1.4 years to a lap of the Sun.	Named minor body or small moon	$15
6489 GolevkaA near-Earth asteroid (Apollo group) about 0.5 km across, 2.5 AU out and 3.9 years to a lap of the Sun.	Named minor body or small moon	$15
65803 DidymosThe target of the DART impact in 2022, the first deliberate change to another body's orbit.	Named minor body or small moon	$15
3200 PhaethonSkims within 0.14 AU of the Sun and sheds the dust that becomes the Geminid meteors.	Named minor body or small moon	$15
1566 IcarusA near-Earth asteroid (Apollo group) about 1.0 km across, 1.1 AU out and 1.1 years to a lap of the Sun.	Named minor body or small moon	$15
1036 GanymedA near-Earth asteroid (Amor group) about 38 km across, 2.7 AU out and 4.3 years to a lap of the Sun.	Named minor body or small moon	$15
4769 CastaliaA near-Earth asteroid (Apollo group) about 1.4 km across, 1.1 AU out and 1.1 years to a lap of the Sun.	Named minor body or small moon	$15
4660 NereusA near-Earth asteroid (Apollo group) about 0.3 km across, 1.5 AU out and 1.8 years to a lap of the Sun.	Named minor body or small moon	$15
2060 ChironDiscovered as an asteroid, then caught growing a cometary coma, and now counted as both.	Named minor body or small moon	$15
10199 CharikloThe largest known centaur, and the second minor body found to have rings.	Named minor body or small moon	$15
5145 PholusThe reddest large body in the solar system, stained by irradiated organic ice.	Named minor body or small moon	$15
7066 NessusA centaur about 60 km across, 24.5 AU out and 121.3 years to a lap of the Sun.	Named minor body or small moon	$15
944 HidalgoA centaur about 38 km across, 5.7 AU out and 13.7 years to a lap of the Sun.	Named minor body or small moon	$15
90482 OrcusSometimes called the anti-Pluto: same 3:2 resonance with Neptune, opposite phase.	Named minor body or small moon	$15
50000 QuaoarA Kuiper belt world half Pluto's width, with a ring and the moon Weywot.	Named minor body or small moon	$15
90377 SednaSo far out that a single orbit takes over 11,000 years and it never comes closer than 76 AU.	Named minor body or small moon	$15
225088 GonggongThe largest solar system body still without an official name for over a decade after discovery.	Named minor body or small moon	$15
28978 IxionA trans-Neptunian object about 617 km across, 39.3 AU out and 246.8 years to a lap of the Sun.	Named minor body or small moon	$15
20000 VarunaOne of the first large Kuiper belt objects found, spinning fast enough to deform its shape.	Named minor body or small moon	$15

Kuiper belt objects

Held for wave 2. Visible on the map, not yet for sale.

Kuiper belt objects: 12 objects, with type, holder or price.

Object	Tier	Holder or price
120347 SalaciaA trans-Neptunian object about 846 km across, 42.1 AU out and 272.7 years to a lap of the Sun.	Named minor body or small moon	wave 2
174567 VardaA trans-Neptunian object about 744 km across, 45.6 AU out and 307.5 years to a lap of the Sun.	Named minor body or small moon	wave 2
38628 HuyaA trans-Neptunian object about 407 km across, 39.3 AU out and 245.9 years to a lap of the Sun.	Named minor body or small moon	wave 2
19521 ChaosA trans-Neptunian object about 600 km across, 46.1 AU out and 312.9 years to a lap of the Sun.	Named minor body or small moon	wave 2
53311 DeucalionA trans-Neptunian object about 208 km across, 43.9 AU out and 291.3 years to a lap of the Sun.	Named minor body or small moon	wave 2
148780 AltjiraA trans-Neptunian object about 330 km across, 44.5 AU out and 296.9 years to a lap of the Sun.	Named minor body or small moon	wave 2
88611 TeharonhiawakoA trans-Neptunian object about 220 km across, 44.0 AU out and 291.8 years to a lap of the Sun.	Named minor body or small moon	wave 2
66652 BorasisiA trans-Neptunian object about 165 km across, 43.7 AU out and 289.1 years to a lap of the Sun.	Named minor body or small moon	wave 2
38083 RhadamanthusA trans-Neptunian object about 176 km across, 39.0 AU out and 243.2 years to a lap of the Sun.	Named minor body or small moon	wave 2
58534 LogosA trans-Neptunian object about 80 km across, 45.3 AU out and 305.0 years to a lap of the Sun.	Named minor body or small moon	wave 2
486958 ArrokothThe most distant object ever visited by a spacecraft, flown past by New Horizons in 2019.	Named minor body or small moon	wave 2
15760 AlbionThe first Kuiper belt object ever found, and the reason we know the belt exists.	Named minor body or small moon	wave 2

Comets

Highly elliptical orbits that sweep the inner system at perihelion and spend the rest of the time far out.

Comets: 6 objects, with type, holder or price.

Object	Tier	Holder or price
1P/HalleyThe comet that made comets predictable, recorded on every return since at least 240 BC.	Comet	wave 3
2P/EnckeThe shortest orbit of any known comet at 3.3 years, and the parent of the Taurid meteors.	Comet	wave 3
C/1995 O1Naked-eye visible for a record 18 months across 1996 and 1997.	Comet	wave 3
C/1996 B2Passed 0.10 AU from Earth in 1996 trailing an ion tail half an astronomical unit long.	Comet	wave 3
9P/Tempel 1Hit on purpose by NASA's Deep Impact probe in 2005 to excavate and read its interior.	Comet	wave 3
67P/Churyumov-GerasimenkoOrbited for two years by Rosetta, which set the first lander down on a comet nucleus.	Comet	wave 3

Nearby stars

Where the map goes after the Kuiper belt. Fixed points, not orbits: see any of their pages for the encoding.

Nearby stars: 3 objects, with type, holder or price.

Object	Tier	Holder or price
Proxima CentauriThe closest star to the Sun, a red dwarf 4.25 light years out with a planet in its habitable zone.	Nearby star	wave 4
Alpha Centauri AA near twin of the Sun, and the brightest component of the closest star system.	Nearby star	wave 4
Alpha Centauri BThe cooler orange companion in the Alpha Centauri pair, 80 years to a single orbit.	Nearby star	wave 4