User:Y-S.Ko/Wikipedia course/Astronomy

Astronomy by

Manner	Amateur Observational Sidewalk Space telescope
Celestial subject	Galactic / Extragalactic Local system Solar
EM methods	Radio Submillimetre Infrared (Far-infrared) Visible-light (optical) Ultraviolet X-ray History Gamma-ray
Other methods	Neutrino Cosmic rays Gravitational radiation High-energy Radar Spherical Multi-messenger
Culture	Australian Aboriginal Babylonian Chinese Egyptian Greek Hebrew Indian Inuit Maya Medieval Islamic Persian Serbian folk Tibetan

Optical
telescopes

v t e Major subfields of astronomy
Astrobiology Astrochemistry Astrometry Astrophysics Cosmochemistry Cosmology Extragalactic astronomy Galactic astronomy Orbital mechanics Physical cosmology Planetary geology Planetary science Solar astronomy Stellar astronomy

Solar System

The Sun, the planets, their moons, and several trans-Neptunian objects

Planets and dwarfs	Terrestrials Mercury Venus Earth Mars Giants Gas Jupiter Saturn Ice Uranus Neptune Dwarfs Ceres Orcus Pluto Haumea Quaoar Makemake Gonggong Eris Sedna
Moons	Earth Moon other near-Earth objects Mars Phobos Deimos Jupiter Ganymede Callisto Io Europa all 95 Saturn Titan Rhea Iapetus Dione Tethys Enceladus Mimas Hyperion Phoebe all 146 Uranus Titania Oberon Umbriel Ariel Miranda all 28 Neptune Triton Proteus Nereid all 16 Orcus Vanth Pluto Charon Nix Hydra Kerberos Styx Haumea Hiʻiaka Namaka Quaoar Weywot Makemake S/2015 (136472) 1 Gonggong Xiangliu Eris Dysnomia
Rings	Jovian Saturnian (Rhean?) Charikloan Chironean Uranian Neptunian Haumean Quaoarian
Small Solar System bodies	Comets Damocloids Meteoroids Minor planets names and meanings moons Planetesimal Planetary orbit-crossing minor planets Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Trojans Venus Earth Mars Jupiter Trojan camp Greek camp Saturn Moons Uranus Neptune Near-Earth objects Asteroid belt Asteroids Ceres Vesta Pallas Hygiea active first 1000 families PHA exceptional Kirkwood gap Centaurs Neptune trojans Trans-Neptunian objects Kuiper belt Cubewanos Plutinos Detached objects Sednoids Scattered disc Oort cloud Hills cloud

Hypothetical objects	Fifth giant Nemesis Phaeton Planet Nine Planet V Planet X Subsatellites Theia Tyche Vulcan Vulcanoids
Exploration (outline)	Colonization Discovery astronomy historical models timeline Space probes timeline list Human spaceflight space stations list programs Mercury Venus Moon mining Mars Ceres Asteroids mining Comets Jupiter Saturn Uranus Neptune Pluto Deep space
Formation and evolution	Star formation Accretion Accretion disk Excretion disk Circumplanetary disk Circumstellar disc Circumstellar envelope Coatlicue Cosmic dust Debris disk Detached object EXCEDE Exozodiacal dust Extraterrestrial materials Sample curation Sample-return mission Frost/Ice/Snow line Giant-impact hypothesis Gravitational collapse Hills cloud Hill sphere Interplanetary dust cloud Interplanetary medium/space Interstellar cloud Interstellar medium Interstellar space Kuiper belt Kuiper cliff Molecular cloud Nebular hypothesis Oort cloud Outer space Planet Disrupted Migration System Planetesimal Formation Merging stars Protoplanetary disk Ring system Roche limit vs. Hill sphere Rubble pile Scattered disc
Lists	Comets Possible dwarf planets Gravitationally rounded objects Minor planets Natural satellites Solar System models Solar System objects by size by discovery date Interstellar and circumstellar molecules
Related	Double planet Lagrangian points Moonlets Syzygy Tidal locking

Solar System → Local Interstellar Cloud → Local Bubble → Gould Belt → Orion Arm → Milky Way → Milky Way subgroup → Local Group → Local Sheet → Virgo Supercluster → Laniakea Supercluster → Local Hole → Observable universe → Universe
Each arrow (→) may be read as "within" or "part of".

v t e Location of Earth
Included	Earth → Solar System → Local Interstellar Cloud → Local Bubble → Gould Belt → Orion Arm → Milky Way → Milky Way subgroup → Local Group → Local Sheet → Virgo Supercluster → Laniakea Supercluster → Local Hole → Observable universe → Universe Each arrow (→) may be read as "within" or "part of".
Related	Cosmic View (1957 book) To the Moon and Beyond (1964 film) Cosmic Zoom (1968 film) Powers of Ten (1968 and 1977 films) Cosmic Voyage (1996 documentary) Cosmic Eye (2012) History of the center of the Universe Order of magnitude Pisces–Cetus Supercluster Complex
Astronomy portal Space portal

Stars

List

Formation

Evolution

Classification

Early Late Main sequence O B A F G K M Subdwarf O B WR OB Subgiant Giant Blue Red Yellow Bright giant Supergiant Blue Red Yellow Hypergiant Yellow Carbon S CN CH White dwarf Chemically peculiar Am Ap/Bp CEMP HgMn He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Blue straggler
Remnants	Compact star Parker's star White dwarf Helium planet Neutron Radio-quiet Pulsar Binary X-ray Magnetar Stellar black hole X-ray binary Burster SGR
Hypothetical	Blue dwarf Black dwarf Exotic Boson Electroweak Strange Preon Planck Dark Dark-energy Quark Q Black hole star Black Hawking Quasi-star Gravastar Thorne–Żytkow object Iron Blitzar White hole

Nucleosynthesis

Structure

Properties

Star systems

Earth-centric
observations

Lists

v t e Nebulae
Visible nebula	Dark nebula Diffuse nebula Emission nebula Planetary nebula Supernova remnant Nova remnant H II region Reflection nebula Variable nebula Protoplanetary nebula
Pre-stellar nebulae	Giant molecular cloud Bok globule Evaporating gaseous globule Solar nebula
Stellar nebula	Nova remnant Protoplanetary nebula Wolf–Rayet nebula Integrated Flux Nebula
Post-stellar nebulae	Planetary nebula Supernova remnant Pulsar wind nebula Supershell
Clouds	Interstellar cloud Molecular cloud Infrared cirrus High-velocity cloud H I region
Morphology	Bipolar nebula Pinwheel nebula
Intergalactic blobs	Lyman-alpha blob
Lists	Diffuse Largest Nebulae Planetary (PNe) Protoplanetary (PPNe) Supernova remnants (SNRs)
Related	Cometary knot
Category Commons Wiktionary

v t e Galaxies
Morphology	Disc Lenticular barred unbarred Spiral anemic barred flocculent grand design intermediate Magellanic unbarred Dwarf galaxy elliptical irregular spheroidal spiral Elliptical galaxy cD Irregular barred Peculiar Ring Polar
Structure	Active galactic nucleus Bar Bulge Central massive object Galactic Center Dark matter halo Disc Disc galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive
Active nuclei	Blazar LINER Markarian Quasar BL Lacertae object Radio X-shaped DRAGN Relativistic jet Seyfert
Energetic galaxies	Lyman-alpha emitter Lyman-break Luminous infrared ULIRG HLIRG ELIRG Starburst blue compact dwarf pea faint blue Luminous infrared galaxy Hot dust-obscured Green bean galaxy Hanny's Voorwerp Wolf-Rayet galaxy
Low activity	Low surface brightness Ultra diffuse Dark galaxy Red nugget Blue Nugget Dead disk
Interaction	Field Galactic tide Groups and clusters group cluster Brightest cluster galaxy fossil group Interacting merger collision cannibalism Jellyfish Satellite Stellar stream Superclusters Walls Voids and supervoids void galaxy
Lists	Galaxies Galaxies named after people Largest Nearest Polar-ring Ring Spiral Groups and clusters Large quasar groups Quasars List of the most distant astronomical objects Starburst galaxies Superclusters Voids
See also	Extragalactic astronomy Galactic astronomy Galactic coordinate system Galactic habitable zone Galactic magnetic fields Galactic orientation Galactic quadrant Galaxy color–magnitude diagram Galaxy formation and evolution Galaxy rotation curve Gravitational lens Gravitational microlensing Illustris project Intergalactic dust Intergalactic stars Intergalactic travel Population III stars Galaxy X (galaxy)
Category Portal

Phenomena

Spacetime
Kepler problem Gravitational lensing Gravitational redshift Gravitational time dilation Gravitational waves Frame-dragging Geodetic effect Event horizon Singularity Black hole
Spacetime diagrams Minkowski spacetime Einstein–Rosen bridge

Equations
Formalisms

Equations
Linearized gravity Einstein field equations Friedmann Geodesics Mathisson–Papapetrou–Dixon Hamilton–Jacobi–Einstein
Formalisms
ADM BSSN Post-Newtonian
Advanced theory
Kaluza–Klein theory Quantum gravity

Relativity

Special
relativity

Background	Principle of relativity (Galilean relativity Galilean transformation) Special relativity Doubly special relativity
Fundamental concepts	Frame of reference Speed of light Hyperbolic orthogonality Rapidity Maxwell's equations Proper length Proper time Proper acceleration Relativistic mass
Formulation	Lorentz transformation
Phenomena	Time dilation Mass–energy equivalence (E=mc²) Length contraction Relativity of simultaneity Relativistic Doppler effect Thomas precession Ladder paradox Twin paradox Terrell rotation
Spacetime	Light cone World line Minkowski diagram Biquaternions Minkowski space

General
relativity

Background	Introduction Mathematical formulation
Fundamental concepts	Equivalence principle Riemannian geometry Penrose diagram Geodesics Mach's principle
Formulation	ADM formalism BSSN formalism Einstein field equations Linearized gravity Post-Newtonian formalism Raychaudhuri equation Hamilton–Jacobi–Einstein equation Ernst equation
Phenomena	Black hole Event horizon Singularity Two-body problem Gravitational waves: astronomy detectors (LIGO and collaboration Virgo LISA Pathfinder GEO) Hulse–Taylor binary Other tests: precession of Mercury lensing (together with Einstein cross and Einstein rings) redshift Shapiro delay frame-dragging / geodetic effect (Lense–Thirring precession) pulsar timing arrays
Advanced theories	Brans–Dicke theory Kaluza–Klein Quantum gravity
Solutions	Cosmological: Friedmann–Lemaître–Robertson–Walker (Friedmann equations) Lemaître–Tolman Kasner BKL singularity Gödel Milne Spherical: Schwarzschild (interior Tolman–Oppenheimer–Volkoff equation) Reissner–Nordström Axisymmetric: Kerr (Kerr–Newman) Weyl−Lewis−Papapetrou Taub–NUT van Stockum dust discs Others: pp-wave Ozsváth–Schücking Alcubierre In computational physics: Numerical relativity

Scientists

Related topics

... in space

Biology

Human	The human body Hygiene Locomotion Medicine Neuroscience Psychology Psychological and sociological effects Sex Sleep
Non-human	Animals Cats Dogs Frogs Fruit flies Mice Primates Tortoises Extraterrestrial life Microorganisms Plants Astrobotany

Environment

Society

Advertising
Alcohol
Archaeology
- of Earth
- of items in space
Art
Burial
Colonization
Economy
- Mining
- Trade
Ethics
Exploration
Food
Law
Military
Music
Religion
- Christmas
Selfies
Tourism
Voting
War
Women

Technology

Human spaceflight	Accidents Architecture Farming Food Carbonated drinks Toilets Writing
Other technologies	Logistics Manufacturing Mining Power Batteries Nuclear Solar for Earth for spacecraft Radar Telescopes Weapons

Outer space portal

v t e Black holes
Outline
Types	BTZ black hole Schwarzschild Rotating Charged Virtual Kugelblitz Supermassive Primordial Direct collapse Rogue Malament–Hogarth spacetime
Size	Micro Extremal Electron Hawking star Stellar Microquasar Intermediate-mass Supermassive Active galactic nucleus Quasar LQG Blazar OVV Radio-Quiet Radio-Loud
Formation	Stellar evolution Gravitational collapse Neutron star Related links Tolman–Oppenheimer–Volkoff limit White dwarf Related links Supernova Micronova Hypernova Related links Gamma-ray burst Binary black hole Quark star Supermassive star Quasi-star Supermassive dark star X-ray binary
Properties	Astrophysical jet Gravitational singularity Ring singularity Theorems Event horizon Photon sphere Innermost stable circular orbit Ergosphere Penrose process Blandford–Znajek process Accretion disk Hawking radiation Gravitational lens Microlens Bondi accretion M–sigma relation Quasi-periodic oscillation Thermodynamics Bekenstein bound Bousso's holographic bound Immirzi parameter Schwarzschild radius Spaghettification
Issues	Black hole complementarity Information paradox Cosmic censorship ER = EPR Final parsec problem Firewall (physics) Holographic principle No-hair theorem
Metrics	Schwarzschild (Derivation) Kerr Reissner–Nordström Kerr–Newman Hayward
Alternatives	Nonsingular black hole models Black star Dark star Dark-energy star Gravastar Magnetospheric eternally collapsing object Planck star Q star Fuzzball Geon
Analogs	Optical black hole Sonic black hole
Lists	Black holes Most massive Nearest Quasars Microquasars
Related	Outline of black holes Black Hole Initiative Black hole starship Black holes in fiction Big Bang Big Bounce Compact star Exotic star Quark star Preon star Gravitational waves Gamma-ray burst progenitors Gravity well Hypercompact stellar system Membrane paradigm Naked singularity Population III star Supermassive star Quasi-star Supermassive dark star Rossi X-ray Timing Explorer Superluminal motion Timeline of black hole physics White hole Wormhole Tidal disruption event Planet Nine
Notable	Cygnus X-1 XTE J1650-500 XTE J1118+480 A0620-00 SDSS J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930 Markarian 501 ULAS J1342+0928 PSO J030947.49+271757.31 P172+18 AT2018hyz Swift J1644+57
Category Commons

Components · Structure

Components
Lambda-CDM model Dark energy · Dark matter
Structure
Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation

v t e Cosmology
Background	Age of the universe Big Bang Chronology of the universe Universe Observable universe
History of cosmological theories	Discovery of cosmic microwave background History of the Big Bang theory Religious interpretations of the Big Bang Timeline of cosmological theories
Past universe	Cosmic microwave background Cosmic neutrino background Gravitational wave background Inflation Nucleosynthesis
Present universe	FLRW metric Friedmann equations Hubble's law Expansion of the universe Accelerating expansion Redshift
Future universe	Future of an expanding universe Ultimate fate of the universe
Components	Dark energy Dark fluid Dark matter Quintessence Lambda-CDM model
Structure formation	Galaxy filament Galaxy formation Large quasar group Large-scale structure Reionization Shape of the universe Structure formation
Experiments	2dF 6dF BOOMERanG COBE Illustris project Observational cosmology Planck SDSS WMAP
astronomy portal

v t e Big History
Themes and subjects	Chronology of the universe Cosmic evolution Deep time Time scales Goldilocks principle Modernity
Eight thresholds	1: Creation - Big Bang and cosmogony 2: Stars - creation of stars 3: Elements - creation of chemical elements inside dying stars 4: Planets - formation of planets 5: Life - abiogenesis and evolution of life 6: Humans - development of Homo sapiens Stone Age 7: Agriculture - Agricultural Revolution 8: Modernity - modern era
Web-based education	Big History Project ChronoZoom
Notable people	Walter Alvarez Cynthia Stokes Brown Eric Chaisson David Christian Carl Sagan Fred Spier Graeme Snooks
Related	Big History (2013 series)

Universe navboxes

Astronomy

{{Astronomy navbox}}
Object types	{{Asteroids}} {{Black holes}} {{Comets}} {{Exoplanet}} {{Galaxy}} {{Meteor showers}} {{Meteorites}} {{Meteorites by name}} {{Neutron star}} {{Star}} {{Stellar core collapse}} {{Stellar system}} {{Supernovae}} {{Variable star topics}} {{White dwarf}}
Catalogues	{{Gum catalogue}} {{Messier objects}} {{RCW}} {{Sh2 objects}}
By culture	{{Ancient Greek astronomy}} {{Astronomy in medieval Islam}} {{Indian astronomy}}

Solar System

General	{{Solar System}} {{Solar System navmap}} {{Solar System table}} {{Atmospheres}} {{Lunar eclipses}} {{Solar eclipses}} {{Sun}}
Planets	{{Earth}} {{Earth's location}} {{Jupiter}} {{Mars}} {{Mercury}} {{Neptune}} {{Saturn}} {{Uranus}} {{Venus}} {{Planetary rings}}
Moons	{{Moons of dwarf planets}} {{Moons of terrestrial planets and asteroids}} {{Solar System moons (big)}} {{Solar System moons (compact)}} {{The Moon [Earth's moon]}} {{Lunar maria}} {{Moons of Jupiter}} {{Ganymede}} {{Io}} {{Callisto}} {{Europa}} {{Moons of Saturn}} {{Titan}} {{Rhea}} {{Enceladus}} {{Tethys}} {{Iapetus}} {{Moons of Uranus}} {{Moons of Neptune}} {{Triton}} {{Charon (moon)}}
Dwarf planets	{{Ceres}} {{Dwarf planets}} {{Eris}} {{Haumea}} {{Pluto}}
Other objects	{{Distant minor planets sidebar}} {{Large asteroids}} {{Minor planets navigator}} {{Small Solar System bodies}} {{Trans-Neptunian objects navbox}}

Star systems (by
distance from Earth)

{{Nearest star systems}}
Within {{N–M}} light-years	{{10}} {{10–15}} {{15–20}}

Constellations

Planetary systems	{{23 Librae}} {{47 Ursae Majoris}} {{55 Cancri}} {{61 Virginis}} {{Alpha Centauri}} {{CoRoT-7}} {{Fomalhaut}} {{Gliese 581}} {{Gliese 667}} {{Gliese 777}} {{Gliese 876}} {{HD 1461}} {{HD 9446}} {{HD 11964}} {{HD 12661}} {{HD 37124}} {{HD 40307}} {{HD 47186}} {{HD 69830}} {{HD 125612}} {{HD 128311}} {{HD 181433}} {{HD 215497}} {{HD 217107}} {{HIP 14810}} {{HR 8799}} {{Mu Arae}} {{Kepler-9}} {{Kepler-11}} {{Kepler-90}} {{Kepler-371}} {{Kepler-445}} {{PSR B1257+12}} {{Upsilon Andromedae}}
Galaxies	{{Andromeda Galaxy}} {{ARP 178}} {{ARP 297}} {{Milky Way}} {{NGC 2264}} {{Robert's Quartet}} {{Triangulum Galaxy}}
Other topics	{{Astrobiology}} {{CMB [Cosmic Microwave Background]}} {{Impact cratering on Earth}} {{Magnetospherics}} {{Modern impact events}}

See also: {{Spaceflight navboxes}}

User:Y-S.Ko/Wikipedia course/Astronomy

Astronomy

Solar and Earth

Star and Galaxy

Relativity

Space and Back Holes

See also