Cosmic atlas
Explore CosmoInsider’s connected knowledge through maps, atlases and comparisons based on our editorial records.
Celestial catalogue
Available celestial bodies and their published observational fields.
Andromeda, or M31, is the Milky Way’s nearest major spiral-galaxy neighbour, a Local Group member roughly 2.5 million light-years away.
Earth is the third planet from the Sun and the largest of the terrestrial planets. It is the only known place inhabited by living things and the only planet in the solar system with liquid water on its surface.
Europa is one of Jupiter’s four large moons and the planet’s fourth-largest moon. Its icy surface and measurements pointing to a salty ocean beneath its crust make it a major target for investigating potentially habitable environments beyond Earth. Launched in 2024, the Europa Clipper mission will study whether places beneath its surface could support life.
Jupiter (JPL 599) is the fifth planet: a rapidly rotating gas giant with a hydrogen-helium atmosphere, an intense magnetosphere, moons, and faint dusty rings.
The Laniakea Supercluster is a large collection of clusters, groups, and galaxies; the Local Group lies on its outer edges.
The Local Group is a galaxy group including the Milky Way, Andromeda, and more than 50 other galaxies, on Laniakea’s outer edges.
Mars (499) is the fourth planet from the Sun: a rocky, cold, dusty desert world with a very thin atmosphere, seasons, polar ice caps, extinct volcanoes, canyons, and active weather.
Mercury is the closest planet to the Sun and the smallest planet in the solar system. JPL identifier 199 corresponds to a rocky world with a 2439.4 ± 0.1 km mean radius, a 58.6462-day sidereal rotation period, and an extremely tenuous exosphere.
The Milky Way is our home galaxy, a spiral galaxy with a stellar disk spanning more than 100,000 light-years.
The Moon is Earth's only natural satellite. It is a differentiated rocky body with a core, mantle, and crust, orbiting Earth at an average distance of about 384,400 km. Its synchronous rotation means it always shows the same hemisphere to our planet.
Neptune is the eighth and most distant planet in the solar system: an ice giant discovered in 1846 through mathematical predictions. It has a dynamic atmosphere, rings, moons, and an orbit lasting nearly 165 Earth years.
The Observable Universe is the cosmic setting studied by cosmology, whose history extends from early inflation to the present accelerating expansion.
The Orion Nebula, or M42, is a nebula in Orion and a nearby star-forming region that can be seen without optical aid from a dark-sky site.
Sagittarius A* is the supermassive black hole at the center of the Milky Way, with a mass of about four million times that of the Sun.
Saturn is the sixth planet from the Sun and the second-largest in the solar system. It is a gas giant composed mostly of hydrogen and helium, known for its complex ring system and numerous moons. The Cassini mission arrived at Saturn in 2004 and ended in 2017.
The Solar System includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets.
The Sun is a yellow dwarf star about 4.5 billion years old, composed mainly of hydrogen and helium. Located at the center of the solar system, it provides energy essential for life on Earth and gravitationally holds the bodies that make up the system in orbit.
Uranus is the seventh planet from the Sun, an ice giant that rotates on its side. It has 13 faint rings; NASA lists 29 recognized moons as of August 2026.
Venus is a cloud-shrouded planet, a nearby planetary neighbor of Earth, and NASA describes it as the hottest planet in the solar system. Its carbon-dioxide-dominated atmosphere has a surface pressure near 92 bar and temperatures around 464–467 °C.
Virgo is the nearest large galaxy cluster to the Local Group, containing over a thousand galaxies, hot gas and dark matter, with M87 in its central region.
The first known interstellar object to visit the Solar System, discovered on 19 October 2017 and officially designated 1I/2017 U1.
1I/ʻOumuamua was the first confirmed interstellar visitor to the Solar System. Discovered in 2017, it yielded trajectory and brightness measurements and evidence of a small additional acceleration, while its exact shape remains unresolved.
3I/ATLAS is the third confirmed interstellar object observed crossing the Solar System. Its open trajectory and cometary activity offer a way to investigate material formed beyond our planetary neighbourhood.
A0620–00 · Black hole · 6.6 masas solares.
Adrastea is a small inner moon of Jupiter, discovered by the Voyager science team in July 1979, orbiting inside Io’s orbit and associated with Jupiter’s dusty ring environment.
AH Scorpii is a supergiant star included in the CosmoInsider stellar archive.
Aldebarán is a giant star included in the CosmoInsider stellar archive.
Alfa Centauri A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Alfa Centauri B is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Amalthea is an irregular inner moon of Jupiter. Its low density, terrain and relationship with the rings inform the study of the Jovian system’s evolution.
Antares is a red supergiant in Scorpius whose luminous surface and extended atmosphere are investigated with infrared interferometry.
Arturo is a giant star included in the CosmoInsider stellar archive.
Ariel is an icy moon of Uranus and one of its five major moons. The available evidence describes a very bright surface with few large craters and many small ones, suggesting that it may be the youngest Uranian moon in relative surface terms.
Atlas is an inner moon of Saturn orbiting around the outer edge of the A Ring. A prominent equatorial ridge gives it a distinctive flying-saucer shape.
Estrella de Barnard is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Betelgeuse is Orion’s variable red supergiant. Its size, pulsations and dust episodes require a clear distinction between observations and models.
Callisto is Jupiter’s second-largest moon. Its ancient surface preserves numerous craters, while Galileo data support investigation of a possible, still uncertain internal ocean.
Cygnus X-1 · Black hole · 21.2 masas solares.
Daphnis is a small ring-embedded moon of Saturn that orbits within the Keeler Gap and raises waves in particles of the A ring.
Deimos is the outer moon of Mars, a small, irregular body with a dark, cratered surface softened by deposits of regolith.
Deneb is a supergiant star included in the CosmoInsider stellar archive.
Despina is a small irregular moon of Neptune, discovered in 1989 in Voyager 2 images. It is about 148 km across, orbits every eight hours, and lies within the planet’s faint ring system.
Dione is a Saturnian moon with a 562 km mean radius, predominantly water-ice composition, inferred interior rock, brightness contrasts, and icy canyons observed by Cassini.
EBLM J0555-57Ab is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Enceladus is an icy moon of Saturn whose subsurface ocean feeds plumes of vapour and ice particles. Cassini revealed an active, potentially habitable world, not a detection of life.
Epimetheus is an irregular moon of Saturn, about 116 km across, that shares an almost identical orbit with Janus and occasionally exchanges orbital positions with it.
ESO 495-21 · Galaxy · 3000 años luz.
Gaia BH1 · Black hole · 9.62 masas solares.
Gaia BH2 · Black hole · 8.9 masas solares.
Gaia BH3 · Black hole · 32.7 masas solares.
Galatea is a small, irregularly shaped moon of Neptune. It orbits in Neptune’s direction of rotation, relatively close to the planet’s equatorial plane, and NASA sources associate its gravity with the stabilization of ring arcs.
Andromeda, or M31, is the Milky Way’s nearest major spiral-galaxy neighbour, a Local Group member roughly 2.5 million light-years away.
Galaxia de Rubin · Galaxy · 250000 años luz.
Galaxia del Cigarro · Galaxy · 30000 años luz.
Galaxia del Cóndor · Galaxy · 522000 años luz.
Galaxia del Molinete · Galaxy · 170000 años luz.
Galaxia del Remolino · Galaxy · 60000 años luz.
Galaxia del Sombrero · Galaxy · 50000 años luz.
Galaxia del Triángulo · Galaxy · 60000 años luz.
Ganymede is the Solar System’s largest moon. Its intrinsic magnetic field, evidence for a salty ocean and contrasting icy terrains make it a key world for studying ocean-moon evolution.
GJ 105 A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Épsilon Eridani is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Groombridge 34 A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
40 Eridani A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 205 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 33 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 338 A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 338 B is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Groombridge 1618 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Lalande 21185 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 412 A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 526 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Gliese 581 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 687 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Struve 2398 A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Struve 2398 B is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 809 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
61 Cygni A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
61 Cygni B is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
GJ 880 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
HD 219134 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Gran Nube de Magallanes · Galaxy · 15000 años luz.
GRO J1655–40 · Black hole · 6 masas solares.
GRS 1915+105 · Black hole · 10.1 masas solares.
Beta Virginis is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Tau Ceti is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Beta Comae Berenices is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
HD 166 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Theta Persei is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Iota Persei is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Kappa Ceti is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Fomalhaut is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
51 Pegasi, catalogued as HD 217014, is a Sun-like star famous for the 1995 discovery of its planet 51 Pegasi b, a hot Jupiter.
10 Tauri is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Delta Eridani is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Lambda Aurigae is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Chi¹ Orionis is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Eta Cassiopeiae A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Xi Geminorum is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Lambda Geminorum is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Procyon A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
55 Cancri A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Merak is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Helene is an irregular moon of Saturn, with a mean radius of 17.6 km, sharing Dione’s orbital neighborhood as a Trojan moon in a gravitationally stable region.
Himalia is an irregular moon of Jupiter, ranked by NASA as the fifth largest, orbiting about 11.5 million km from the planet and thought likely to have been captured.
Hyperion is an irregular, nonspherical outer moon of Saturn, about 266 km across, notable for its porous-looking terrain, chaotic rotation, and a charged surface confirmed by Cassini.
Iapetus is a moon of Saturn, discovered by Giovanni Cassini in 1671, distinguished by an extreme bright-dark division, a near-equatorial ridge, and an irregular figure whose explanation remains under investigation.
IC 1101 · Galaxy · 520 años luz.
Io is a rocky moon of Jupiter whose intense volcanism is linked to tidal heating. Its surface and plasma environment form a dynamic system.
Janus is a cratered, irregular moon of Saturn, particularly known for sharing an orbit with Epimetheus and exchanging orbital positions with it about every four years.
KW Sagittarii is a supergiant star included in the CosmoInsider stellar archive.
A satellite galaxy of the Milky Way and a member of the Local Group.
Larissa is a small, irregular, heavily cratered moon of Neptune, found in 1989 during Voyager 2’s encounter and located near Neptune’s faint ring system.
M60-UCD1 · Galaxy · 300 años luz.
Messier 61 · Galaxy · 100000 años luz.
Messier 66 · Galaxy · 100000 años luz.
Messier 87 · Galaxy · 120000 años luz.
Methone is a very small moon of Saturn, discovered in Cassini images and located between Mimas and Enceladus. Available observations emphasize its lack of obvious craters and an arc of material co-orbiting with it.
Metis is a small inner moon of Jupiter, located inside Io’s orbit and among the two closest moons that orbit within Jupiter’s synchronous-orbit radius. The cited evidence gives an approximate mean radius of 21.5 km, an orbital distance of 128,000 km from Jupiter, and an orbital period of 0.295 Earth days.
Mimas is Saturn’s smallest and innermost major moon, a heavily cratered, slightly ovoid icy world best known for the enormous Herschel crater. Voyager and Cassini-Huygens observations provide the evidence summarized here.
Miranda is a major moon of Uranus, discovered by Gerard P. Kuiper in 1948 and closely observed by Voyager 2 in January 1986. The imagery revealed a cratered, fractured, unusually grooved surface and a complex geological history.
Naiad is a small inner moon of Neptune, discovered during the Voyager 2 flyby. It circles the planet in about seven hours and six minutes; NASA describes its orbit as decaying and documents an avoidance configuration with Thalassa.
Nereid is an outer moon of Neptune, discovered by Gerard Kuiper in 1949 and notable for having one of the most eccentric satellite orbits known in the Solar System.
NGC 1300 · Galaxy · 100000 años luz.
NGC 1365 · Galaxy · 200000 años luz.
NGC 3738 · Galaxy · 10000 años luz.
Oberon is a major moon of Uranus, described by NASA as the outermost of the five major moons. Its ancient, heavily cratered surface, approximate half-ice and half-rock composition, and Voyager 2 imaging are the principal supplied evidence.
Objeto de Hoag · Galaxy · 120000 años luz.
Pan is Saturn’s innermost known moon, located within the Encke Gap of the A ring. Its mean radius is 14.1 km, its orbital period is 13.8 hours, and NASA describes it as a shepherd moon; Cassini images revealed a flying-saucer-like form associated with a prominent equatorial ridge.
Pandora is a small moon of Saturn near the F ring. Cassini observations described by NASA show grooves, ridges, fine icy dust, and impact craters apparently mantled by debris, while its gravity contributes to the complex dynamics of the F ring.
Pequeña Nube de Magallanes · Galaxy · 15000 años luz.
Phobos is the larger, inner moon of Mars: an irregular, regolith-covered body dominated by Stickney crater, with an orbit that is slowly drawing closer to the planet.
Phoebe is a large outer moon of Saturn with an elliptical, highly inclined, retrograde orbit. Cassini-Huygens evidence characterizes it as a possible remnant planetesimal and supports gravitational capture as an interpretation, while its detailed composition, interior, and evolution remain unresolved.
Pólux is a giant star included in the CosmoInsider stellar archive.
Prometheus is an irregular moon of Saturn in the vicinity of the narrow F ring. Its gravity disturbs inner ringlets, producing channels and filamentary structures; together with Pandora, it is described as shepherding the ring.
Proteus is a natural moon of Neptune with a slightly non-spherical, heavily cratered surface. Voyager 2 discovered it in 1982, and it orbits Neptune in about 27 hours.
Proxima Centauri is the nearest star to the Sun: an active red dwarf in the Alpha Centauri system, with a planet that illustrates the uncertainties of habitability.
PSR J0030+0451 is a stellar remnant included in the CosmoInsider stellar archive.
Rhea is Saturn’s second-largest moon after Titan. Its cited diameter is about 1,527–1,528 km; it is mostly water ice, rotates synchronously with its orbit, and was associated with Cassini evidence for orbiting material in 2008.
Rigel is Orion’s blue supergiant, whose brightness variations and atmosphere help astronomers investigate the evolution of massive stars.
Sagitario A* · Black hole · 4300000 masas solares.
Sirio A is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Sirio B is a stellar remnant included in the CosmoInsider stellar archive.
Tethys is Saturn’s fifth-largest moon, a cold, airless and heavily impact-scarred body globally mapped with Cassini images.
Thalassa is a small moon of Neptune discovered during Voyager 2’s encounter. NASA reports an unusual avoidance dynamic with Naiad and states that Thalassa’s orbit is slowly decaying through tidal deceleration.
A small, irregular inner moon of Jupiter at the outer edge of its faint ring system, probably associated with dust supply to the gossamer ring.
Titan, Saturn’s largest moon, combines a dense atmosphere, hydrocarbon lakes and an icy surface. Its internal structure remains an active research topic.
Titania is Uranus’s largest moon. It was discovered by William Herschel on January 11, 1787, and was observed at close range by Voyager 2 in January 1986.
TRAPPIST-1 is a main-sequence or subgiant star included in the CosmoInsider stellar archive.
Triton is Neptune’s largest moon and is notable for its retrograde orbit. Voyager 2 data revealed an icy surface, a tenuous atmosphere, active plumes, and complex geology; the supplied evidence also supports, without conclusively proving, capture from the Kuiper belt and a possible internal ocean.
Umbriel is a major moon of Uranus, distinguished as the darkest of the large Uranian moons and by the old, heavily cratered surface reported from Voyager 2 observations.
UY Scuti is a supergiant star included in the CosmoInsider stellar archive.
V404 Cygni · Black hole · 9 masas solares.
V4641 Sagittarii · Black hole · 6.4 masas solares.
The Milky Way is our home galaxy, a spiral galaxy with a stellar disk spanning more than 100,000 light-years.
VY Canis Majoris is a supergiant star included in the CosmoInsider stellar archive.
WOH G64 is a supergiant star included in the CosmoInsider stellar archive.
ZTF J1901+1458 is a stellar remnant included in the CosmoInsider stellar archive.
