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Planetary system consisting of the Sun and objects orbiting it
The Solar System is the gravitationally bound system of the Sun and the masses that orbit it, most prominently its eight planets, of which Earth is one
Solar_System
This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius. These lists
List of Solar System objects by size
List_of_Solar_System_objects_by_size
The formation of the Solar System began about 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of
Formation and evolution of the Solar System
Formation_and_evolution_of_the_Solar_System
Power system designed to supply usable electric power from solar energy
A photovoltaic system, also called a PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics
Photovoltaic_system
Planet outside of the Solar System
An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and
Exoplanet
Permanent scale model of the Solar System
Sedna Termination Shock The Sweden Solar System is the world's largest permanent scale model of the Solar System. The Sun is represented by Avicii Arena
Sweden_Solar_System
Of the Solar System's eight planets and its nine most likely dwarf planets, six planets and seven dwarf planets are known to be orbited by at least 467
List_of_natural_satellites
Star at the centre of the Solar System
The Sun is the star located at the centre of the Solar System. It is a massive sphere of hot plasma, heated to incandescence by nuclear fusion reactions
Sun
Use of sunlight for water heating with a solar thermal collector
capacity per person. There were 122 million solar hot water systems in operation at the end of 2022. Records of solar collectors in the United States date to
Solar_water_heating
Conversion of energy from sunlight into electricity
concentrated solar power. Solar panels use the photovoltaic effect to convert light into an electric current. Concentrated solar power systems use lenses
Solar_power
Topics referred to by the same term
photovoltaic system, alternately called a "solar system" a star's planetary system, sometimes referred to as a "solar system" The Solar System (film), a
Solar_System_(disambiguation)
The following is a list of Solar System objects by orbit, ordered by increasing distance from the Sun. Most named objects in this list have a diameter
List_of_Solar_System_objects
Architectural engineering that uses the Sun's heat without electric or mechanical systems
the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the
Passive_solar_building_design
Stream of charged particles from the Sun
The solar wind is a stream of charged particles released from the Sun's outermost atmospheric layer, the corona. This plasma mostly consists of electrons
Solar_wind
is a list of most likely gravitationally rounded objects (GRO) of the Solar System, which are objects that have a rounded, ellipsoidal shape due to their
List of gravitationally rounded objects of the Solar System
List_of_gravitationally_rounded_objects_of_the_Solar_System
Illustration of the relative positions of the Sun and planets
Solar System models, especially mechanical models, called orreries, that illustrate the relative positions and motions of the planets and moons in the
Solar_System_model
2024 BBC documentaries with Brian Cox
Solar System is a 2024 documentary TV miniseries produced by the BBC and narrated by Brian Cox. The first episode was shown on BBC Two on 7 October 2024
Solar_System_(TV_series)
Long term dynamical interactions that disrupt the Solar System
The stability of the Solar System is a subject of much inquiry in astronomy. Though the planets have historically been stable as observed, and will be
Stability_of_the_Solar_System
Hypothetical bodies around the Solar System
A hypothetical Solar System object is a planet, natural satellite, subsatellite or similar body in the Solar System whose existence is not known, but has
List of hypothetical Solar System objects
List_of_hypothetical_Solar_System_objects
This is a list of the tallest mountains in the Solar System. This list includes peaks on all celestial bodies where significant mountains have been detected
List of tallest mountains in the Solar System
List_of_tallest_mountains_in_the_Solar_System
Concept of collecting solar power in outer space and distributing it to Earth
Space-based solar power (SBSP or SSP) is the concept of collecting solar power in outer space with solar power satellites (SPS) and distributing it to
Space-based_solar_power
Object in the Solar System
A small Solar System body (SSSB) is an object in the Solar System that is neither a planet, a dwarf planet, nor a natural satellite. The term was first
Small_Solar_System_body
This is a timeline of Solar System exploration ordering events in the exploration of the Solar System by date of spacecraft launch. It includes: All spacecraft
Timeline of Solar System exploration
Timeline_of_Solar_System_exploration
Radiant light and heat from the Sun, harnessed with technology
include the use of photovoltaic systems, concentrated solar power, and solar water heating to harness the energy. Passive solar techniques include designing
Solar_energy
Orbits where planets may have liquid surface water
found at galactic centers. The discovery of exoplanets unlike any in the Solar System led to suggestions that life might emerge even in conditions outside
Habitable_zone
Overview of and topical guide to the Solar System
provided as an overview of and topical guide to the Solar System: Solar System – gravitationally bound system comprising the Sun and the objects that orbit
Outline_of_the_Solar_System
2010 British television series
Solar System is a 2010 television series co-produced by the BBC and Science Channel, and hosted by physicist Brian Cox. Wonders of the Solar System was
Wonders_of_the_Solar_System
Technology using sunlight for heat
photovoltaic cells that convert sunlight directly into electricity, solar thermal systems convert it into heat. They use mirrors or lenses to concentrate
Solar_thermal_energy
Type of photovoltaic system
A rooftop solar power system, or rooftop PV system, is a photovoltaic (PV) system that has its electricity-generating solar panels mounted on the rooftop
Rooftop_solar_power
Periodic change in the Sun's activity
The Solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a periodic 11-year change in the Sun's activity measured
Solar_cycle
Discovery and exploration of the Solar System is observation, visitation, and increase in knowledge and understanding of Earth's "cosmic neighborhood"
Discovery and exploration of the Solar System
Discovery_and_exploration_of_the_Solar_System
craters on various worlds of the Solar System. For a full list of named craters, see List of craters in the Solar System. The ratio column compares the
List of largest craters in the Solar System
List_of_largest_craters_in_the_Solar_System
protoplanetary disk. There are eight planets within the Solar System; planets outside of the solar system are also known as exoplanets. As of 4 June 2026, there
Lists_of_planets
Center of mass of multiple bodies orbiting each other
International Celestial Reference System (ICRS) is a barycentric coordinate system centered on the Solar System's barycenter. The barycenter is one of
Barycenter_(astronomy)
Methods to identify locations on the Sun
In solar observation and imaging, coordinate systems are used to identify and communicate locations on and around the Sun. The Sun is made of plasma,
Solar_coordinate_systems
Interstellar cloud in the Milky Way Galaxy
across, through which the Solar System is moving. This feature overlaps with a region around the Sun referred to as the solar neighborhood. It is unknown
Local_Interstellar_Cloud
Heliostatic model of solar system by Nicolaus Copernicus
what was, so far as is known, the first serious model of a heliocentric Solar System, having developed some of Heraclides Ponticus's theories (speaking of
Copernican_heliocentrism
Standard unit of mass in astronomy
The solar mass (M☉) is a frequently used unit of mass in astronomy, equal to approximately 2×1030 kg. It is approximately equal to the mass of the Sun
Solar_mass
Thе history of discovering planets and moons
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object
Timeline of discovery of Solar System planets and their moons
Timeline_of_discovery_of_Solar_System_planets_and_their_moons
the Solar System. Entries listed in bold are Solar System-wide extremes. List of Solar System objects most distant from the Sun Astronomy portal Solar System
List_of_Solar_System_extremes
Earth flybys. Planned and proposed missions are in the List of proposed Solar System probes. Colour key: † means "tentatively identified", as classified by
List_of_Solar_System_probes
Region between the orbits of Mars and Jupiter
The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter
Asteroid_belt
Concentrated solar thermal power station in the Mojave Desert of California
The Ivanpah Solar Electric Generating System is a concentrated solar thermal plant located in the Mojave Desert at the base of Clark Mountain in California
Ivanpah_Solar_Power_Facility
Interstellar object that passed near Earth in 2017
the first confirmed interstellar object detected passing through the Solar System. Formally designated 1I/2017 U1, it was discovered by Canadian Robert
1I/ʻOumuamua
Set of non-stellar objects in orbit around a star
term exoplanetary system is sometimes used in reference to planetary systems other than the Solar System. By convention planetary systems are named after
Planetary_system
Fictional planets of the Solar System have been depicted since the 1700s—often but not always corresponding to hypothetical planets that have at one point
Fictional planets of the Solar System
Fictional_planets_of_the_Solar_System
Habitability of the celestial bodies of the Solar System
Planetary habitability in the Solar System is the study that searches the possible existence of past or present extraterrestrial life in those celestial
Planetary habitability in the Solar System
Planetary_habitability_in_the_Solar_System
1 is still contactable en-route to the Oort Cloud and has exited the Solar System, it is listed as "mission complete" because its primary task of studying
List of active Solar System probes
List_of_active_Solar_System_probes
Central region of the Sun
center to about 0.2 of the solar radius (139,000 km; 86,000 mi). It is the hottest part of the Sun and of the Solar System. It has a density of 150,000 kg/m3
Solar_core
Space propulsion method using Sun radiation
LightSail-2, launched in 2019. A further demonstrator, Advanced Composite Solar Sail System (ACS3), was launched in 2024, and deployed successfully but is not
Solar_sail
Assembly of photovoltaic cells used to generate electricity
batteries. Solar panels can be known as solar cell panels, or solar electric panels. Solar panels are usually arranged in groups called arrays or systems. A photovoltaic
Solar_panel
Galaxy containing the Solar System
The Milky Way or Milky Way Galaxy is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band
Milky_Way
Mean distance between Earth and the Sun
astronomical unit is used primarily for measuring distances within the Solar System or around other stars. It is also a fundamental component in the definition
Astronomical_unit
Hypothetical Solar System planet
Planet Nine is a hypothetical ninth planet in the outer region of the Solar System. Its gravitational effects could explain the peculiar clustering of orbits
Planet_Nine
Third planet from the Sun
is made possible by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained
Earth
Life that does not originate on Earth
in the cosmos and not a rarity from the Solar System. Earth is a planet in the Solar System, a planetary system formed by a star at the center, the Sun
Extraterrestrial_life
Distant planetesimals in the Solar System
approximately aligned with the solar ecliptic (also called its Hills cloud) and a spherical outer Oort cloud enclosing the entire Solar System. Both regions lie well
Oort_cloud
systems use solar panels, either on rooftops or in ground-mounted solar farms, converting sunlight directly into electric power. Concentrated solar power
Solar_power_by_country
Eruption of electromagnetic radiation
ejections, solar particle events, and other eruptive solar phenomena. The occurrence of solar flares varies with the 11-year solar cycle. Solar flares are
Solar_flare
Situation in which an astronomical object's orbital period matches its rotational period
TRAPPIST-1 system are likely to be tidally locked. Physics portal Astronomy portal Stars portal Spaceflight portal Outer space portal Solar System portal
Tidal_locking
Type of Solar System object
In planetary astronomy, a centaur is a small Solar System body that orbits the Sun between Jupiter and Neptune and crosses the orbits of one or more of
Centaur (small Solar System body)
Centaur_(small_Solar_System_body)
collected upon the surface? How common are Solar System-like planetary systems? (Some observed planetary systems contain Super-Earths and Hot Jupiters that
List of unsolved problems in astronomy
List_of_unsolved_problems_in_astronomy
NASA probe of the Sun's outer corona
The Parker Solar Probe (PSP; previously Solar Probe, Solar Probe Plus or Solar Probe+) is a NASA space probe launched in 2018 to make observations of
Parker_Solar_Probe
Locations in the Solar System besides the Earth have appeared as settings in fiction since at least classical antiquity, initially as an extension of the
Solar_System_in_fiction
Fifth planet from the Sun
the largest in the Solar System. It is a gas giant with a mass nearly 2.5 times that of all the other planets in the Solar System combined and slightly
Jupiter
Natural satellite orbiting Earth
Earth's (about as wide as the contiguous United States). Within the Solar System, it is larger and more massive than any known dwarf planet, and the fifth-largest
Moon
Largest dwarf planet
from planetary models of the Solar System. In February 2000 the Hayden Planetarium in New York City displayed a Solar System model of only eight planets
Pluto
Device that collects heat
installations such as solar parabolic troughs and solar towers, or to non-water-heating devices such as solar cookers or solar air heaters. Solar thermal collectors
Solar_thermal_collector
Concept of permanent human habitation outside of Earth
of the outer Solar System. Power – Solar power is many times less concentrated in the outer Solar System than in the inner Solar System. It is unclear
Space_colonization
Pressure exerted upon any surface exposed to electromagnetic radiation
Stefan–Boltzmann constant. Solar radiation pressure is due to the Sun's radiation at closer distances, thus especially within the Solar System. While it acts on
Radiation_pressure
Measurement of electromagnetic radiation
that time period. This integrated solar irradiance is called solar irradiation, solar radiation, solar exposure, solar insolation, or insolation. Irradiance
Solar_irradiance
Region of space dominated by the Sun
and space climate. Flowing unimpeded through the Solar System for billions of kilometers, the solar wind extends far beyond even the region of Pluto until
Heliosphere
Second planet from the Sun
atmosphere is far thicker and denser than that of any other rocky body in the Solar System. The atmosphere is composed mostly of carbon dioxide and has a thick
Venus
List of systems with multiple planets
known multiplanetary systems, or stars with at least two confirmed planets, beyond the Solar System. This list includes systems with at least three confirmed
List of multiplanetary systems
List_of_multiplanetary_systems
Historical models of the Solar System first appeared during prehistoric periods and remain updated to this day. The models of the Solar System throughout history
Historical models of the Solar System
Historical_models_of_the_Solar_System
The following is a collection of lists of asteroids of the Solar System that are exceptional in some way, such as their size or orbit. For the purposes
List_of_exceptional_asteroids
Small photovoltaic system connected directly to a building's electrical circuit
A balcony solar power system (also called a plug-in solar panel, mini solar system, or balcony power station) is a small photovoltaic system designed to
Balcony_solar_power
Innermost Galilean moon of Jupiter
than Earth's Moon, Io is the fourth-largest natural satellite in the Solar System, has the highest density and strongest surface gravity of any natural
Io_(moon)
Saturn has the most extensive and complex ring system of any planet in the Solar System. The rings consist of particles in orbit around the planet, ranging
Rings_of_Saturn
Public outreach program of the Jet Propulsion Laboratory
The Solar System Ambassadors Program is a public outreach program of the Jet Propulsion Laboratory. More than 1400 volunteers in all 50 states as well
Solar_System_Ambassadors
Celestial coordinate system used to describe Solar System objects
coordinate system is a celestial coordinate system commonly used for representing the apparent positions, orbits, and pole orientations of Solar System objects
Ecliptic_coordinate_system
probes and the upper stages of their launch vehicles are leaving the Solar System, all of which were launched by NASA. Three of the probes, Voyager 1,
List of artificial objects leaving the Solar System
List_of_artificial_objects_leaving_the_Solar_System
Sun-centered astronomical model
(genuinely heliocentric), and Galileo Galilei presented observations of the Solar System made using his telescope. With the observations of William Herschel,
Heliocentrism
1977 single by the Beach Boys
"Solar System" is a song by the American rock band the Beach Boys from their 1977 album The Beach Boys Love You. It was written and sung by Brian Wilson
Solar_System_(song)
Hypotheses for the possible sources of the water on Earth
and other volatiles must have been delivered to Earth from the outer Solar System later in its history. Recent research, however, indicates that hydrogen
Origin_of_water_on_Earth
The following is a timeline of Solar System astronomy and science. It includes the advances in the knowledge of the Earth at planetary scale, as part of
Timeline of Solar System astronomy
Timeline_of_Solar_System_astronomy
Largest moon of Saturn
in the Solar System. It is the only moon known to have a dense atmosphere—denser than Earth's—and is the only known object in the Solar System besides
Titan_(moon)
currently various proposed space probes to focus on the exploration of the Solar System. For planned missions to the Moon see the dedicated list of missions
List of proposed Solar System probes
List_of_proposed_Solar_System_probes
Astronomical object not gravitationally bound to a star
originate in the solar system. The first interstellar objects discovered were rogue planets, ejected from their original stellar system (e.g., OTS 44 or
Interstellar_object
Combinations between different technologies to generate electric power
usually using renewable technologies such as solar photovoltaic (PV) and wind turbines. Hybrid systems provide a high level of energy security through
Hybrid_power
Natural satellites of the planet Saturn
with confirmed orbits as of 9 April 2026, the most of any planet in the Solar System. Saturn's moons are diverse in size, ranging from tiny moonlets to Titan
Moons_of_Saturn
NASA space probe launched in 1977
September 5, 1977, as part of the Voyager program, to study the outer Solar System and the interstellar space beyond the Sun's heliosphere. It was launched
Voyager_1
Space navigation technique
Solar System - NASA/JPL". Eyes on the Solar System - NASA/JPL. Retrieved 2026-04-30. "Eyes on the Solar System - NASA/JPL". Eyes on the Solar System -
Gravity_assist
over the millennia. As of 2024, there are eight official planets in the Solar System per the International Astronomical Union (IAU), which has also established
List_of_former_planets
within the Solar System. These are by no means all events, but only the notable or rare ones. In particular, it does not include all solar eclipses or
List of future astronomical events
List_of_future_astronomical_events
The presence of water on the terrestrial planets of the Solar System (Mercury, Venus, Earth, Mars, and the closely related Earth's Moon) varies with each
Water on terrestrial planets of the Solar System
Water_on_terrestrial_planets_of_the_Solar_System
Video game series by Sega
Quest, and Final Fantasy. The original series takes place in the Algol Solar System, which consists of four planets: Palma, a fertile agricultural world;
Phantasy_Star
Outermost layer of the Sun's atmosphere
structured by the solar magnetic field. The solar corona lies above the photosphere and chromosphere and extends out to the edge of the solar atmosphere where
Solar_corona
Short-term state of the atmosphere
very thin atmosphere throughout the Solar System. The movement of mass ejected from the Sun is known as the solar wind. On Earth, common weather phenomena
Weather
Light emitted by the Sun
portion of the electromagnetic radiation which is emitted by the Sun (i.e. solar radiation) and received by the Earth, in particular the visible light perceptible
Sunlight
SOLAR SYSTEM
SOLAR SYSTEM
Boy/Male
Hindu
A part of polar star
Boy/Male
Indian
King of Solar System
Girl/Female
Arabic, Bengali, Hindu, Indian, Muslim, Punjabi, Sikh
Blessing; The Seventh Solar Month of the Calendar
Boy/Male
Hindu, Indian
Area Covered with One Type of Tree; Flowers; Maancholai means Mango Plantations; Pooncholai means Flower Garden
Girl/Female
Arabic, Muslim
One of the Solar Planet
Boy/Male
Bengali, Hindu, Indian, Malayalam, Marathi, Tamil, Telugu
King of the Solar Race
Male
Egyptian
, glory of the Solar Disk.
Boy/Male
Muslim/Islamic
Leader
Boy/Male
Celtic, French, Gujarati, Indian
Name of Flower
Boy/Male
Hindu
The polar star, Firm, Unshakable
Boy/Male
Hindu, Indian
Sun or Solar
Boy/Male
Tamil
Dhruvansh | தà¯à®°à¯à®µà®‚à®·Â
A part of polar star
Dhruvansh | தà¯à®°à¯à®µà®‚à®·Â
Boy/Male
Tamil
The polar star, Firm, Unshakable
Boy/Male
Muslim
Leader
Boy/Male
Hindu, Indian, Sanskrit
Solar
Boy/Male
Sikh
Adornment
Boy/Male
Arabic, Australian, Farsi, Iranian, Kurdish, Muslim, Parsi, Pashtun
Leader
Girl/Female
Arabic, British, English, Portuguese, Russian
Beautiful Butterfly
Girl/Female
Indian, Tamil
Garden
Boy/Male
Hindu, Indian
Place Name in Karnataka Bhopal
SOLAR SYSTEM
SOLAR SYSTEM
Girl/Female
Hindu, Indian
God of Moon
Boy/Male
Tamil
Rasbihari | ராஸபிஹாரீ
Lord Krishna
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Marathi, Telugu
The Sun
Girl/Female
Arabic
Pure; Pious
Girl/Female
Indian
Full of Joy, Full of happiness
Surname or Lastname
English
English : variant spelling of Salt.French : topographic name for someone who lived near a grove or small wood, Old French saut (Latin saltus).
Boy/Male
Tamil
Swan
Boy/Male
Hindu
God, Parmeshwar, Dev, Ishwar
Girl/Female
American, German, Indian, Italian, Latin, Sanskrit, Spanish
Prosperous; Great; Famous; Astonishing; Wonderful
Surname or Lastname
English
English : variant spelling of Husk.East German : variant of Huschka.German (Hüske) : topographic name for someone who lived in a very small (stone) house, from the diminutive form of Middle Low German hūs ‘house’.
SOLAR SYSTEM
SOLAR SYSTEM
SOLAR SYSTEM
SOLAR SYSTEM
SOLAR SYSTEM
a.
Of or pertaining to one of the poles of the earth, or of a sphere; situated near, or proceeding from, one of the poles; as, polar regions; polar seas; polar winds.
n.
The measurement of the force of solar radiation.
a.
Measured by the progress or revolution of the sun in the ecliptic; as, the solar year.
n.
A solan goose.
a.
Having power to grind; grinding; as, the molar teeth; also, of or pertaining to the molar teeth.
a.
Pertaining to, reckoned from, or having a common radiating point; as, polar coordinates.
a.
Solar.
n.
Any one of the teeth back of the incisors and canines. The molar which replace the deciduous or milk teeth are designated as premolars, and those which are not preceded by deciduous teeth are sometimes called true molars. See Tooth.
a.
Of or pertaining to the sun; proceeding from the sun; as, the solar system; solar light; solar rays; solar influence. See Solar system, below.
a.
Born under the predominant influence of the sun.
a.
A loft or upper chamber; a garret room.
n.
See Solar, n.
n.
Solary; military pay.
a.
Produced by the action of the sun, or peculiarly affected by its influence.
a.
See Polar.
v. t.
To cover, or provide with, a sollar.
n.
A secondary planet which revolves about another planet; as, the moon is a satellite of the earth. See Solar system, under Solar.
n.
One of the asteroids. See Solar.
n.
A loft or garret. See Solar, n.
n.
The right line drawn through the two points of contact of the two tangents drawn from a given point to a given conic section. The given point is called the pole of the line. If the given point lies within the curve so that the two tangents become imaginary, there is still a real polar line which does not meet the curve, but which possesses other properties of the polar. Thus the focus and directrix are pole and polar. There are also poles and polar curves to curves of higher degree than the second, and poles and polar planes to surfaces of the second degree.