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Concepts

Index

Part of the Hyades in Taurus
Life at the Vernal Equinox
Relative Galactic Position of the Solar System
Relative Galactic Position of the Northern Celestial Pole
Illustration of a Red Giant
Image of the Summer Solstice
Seeing a Light Year
Location of the First Point of Aries
Illustration of a Constellation, Leo
Illustration of a Comet
The Sky at the Northern Celestial Pole
The First Point of Aries
The Northern Ecliptic Pole in Draco
A Typical K-type Star
The Milky Way
Image of a Typical Open Cluster
Comparative Size of a Dwarf
A
A-type StarsApollo GroupArm, Sagittarius
AbbreviationsApparent MagnitudeArm, Scutum-Crux
Abell 1656Arcturian StarsArm, Spiral
Absolute MagnitudeArea, AngularAsterism
Absolute TemperatureAries, First Point ofAsteroid
Absorption NebulaArm, GalacticAsteroid Belt
Angular AreaArm, OrionAstronomical Unit
AphelionArm, OuterAU
ApoapsisArm, PerseusAutumnal Equinox
B
B-type StarsBinaryBright Star Catalog
Barred Spiral GalaxyBlack DwarfBright Yellow Stars
Bayer DesignationBlack HoleBrown Dwarf
Bayer FamilyBlue StarsBSC
C
C-type StarsCelestial Quadrant NQ2Cluster, Local
Calcium StarsCelestial Quadrant NQ3Cluster, Open
Caldwell CatalogueCelestial Quadrant NQ4Cluster, Ursa Major
Canes Venatici CloudCelestial Quadrant SQ1Cluster, Virgo
Canes Venatici I GroupCelestial Quadrant SQ2Cluster of Galaxies
Carbon StarsCelestial Quadrant SQ3Coma Cluster
CBRCelestial Quadrant SQ4Comet
Celestial EquatorCelestial SphereConstellation Family
Celestial MeridianCircumstellar DiscConstellations
Celestial PoleClassical Kuiper Belt ObjectCore, Stellar
Celestial Pole, NorthernClusterCosmic Background Radiation
Celestial Pole, SouthernCluster, ComaCrater
Celestial QuadrantCluster, GalacticCubewano
Celestial Quadrant NQ1Cluster, GlobularCVn I Group
D
Dark MatterDiameterDrake Equation
Dark NebulaDisc, CircumstellarDwarf
DeclinationDisc, GalacticDwarf Planet
E
EccentricityElliptical GalaxyEquinox, Autumnal
EclipseEmission NebulaEquinox, Vernal
EclipticEquator, CelestialExoplanet
Ecliptic Pole, NorthernEquinoxExtrasolar Planet
F
F-type StarsFirst Point of AriesFull Moon
Family, ConstellationFlamsteed Numbers
G
G-type StarsGalaxiesGiant
Galactic ArmGalaxy, TheGlobular Cluster
Galactic ClusterGalaxy ClusterGravity
Galactic CoreGalaxy GroupGreen Bank Equation
Galactic DiscGalilean MoonsGrG
Galactic NucleusGas GiantsGroup of Galaxies
Galactic Pole, NorthernGenitives
H
HD CatalogueHenry Draper CatalogueHR Catalog
Heavenly Waters FamilyHercules FamilyHubble Classification
Hemisphere
I
ICIndex CatalogueIrregular Galaxy
InclinationInterstellar MediumISM
J
Jovian Planets
K
K-type StarsKeplerKuiper Belt, Classical Object
Kelvin ScaleKuiper Belt
L
La Caille FamilyLight YearLocal Group
Lenticular GalaxyLimbLuminosity
Leo I GroupLocal ClusterLunar Seas
Life
M
M-type StarsMagnitudeMeridian, Celestial
M81 GroupMagnitude, AbsoluteMessier Catalogue
M81-M82 GroupMagnitude, ApparentMilky Way
M94 GroupMain Sequence StarsMoons
M96 GroupMariaMultiple Stars
Magellanic CloudsMass
N
N-type StarsNeutron StarNorthern Ecliptic Pole
NebulaNew General CatalogueNorthern Galactic Pole
Nebula, AbsorptionNew MoonNQ1, Celestial Quadrant
Nebula, DarkNGCNQ2, Celestial Quadrant
Nebula, EmissionNGC 3031 GroupNQ3, Celestial Quadrant
Nebula, PlanetaryNGC 4736 GroupNQ4, Celestial Quadrant
Nebula, ReflectionNorth Polar SequenceNubeculae Magellani
NEPNorthern Celestial Pole
O
O-type StarsOrbital EccentricityOrion Family
Open ClusterOrbital InclinationOrange Stars
Optical DoubleOrbital PeriodOuter Arm
OrbitOrion Arm
P
Pale Yellow StarsPerseus FamilyPrecession
Parallax SecondPhotospherePrecession Circle
ParsecPlanetary NebulaPrimary
PeriapsePlanetsProminence
PeriapsisPlanets, JovianProtoplanet
PericentrePlanets, TerrestrialProtostar
PerihelionPopulation IPulsating Variable
Perseus ArmPopulation II
Q
QuadrangleQuadrant NQ3Quadrant SQ2
Quadrant, CelestialQuadrant NQ4Quadrant SQ3
Quadrant NQ1Quadrant SQ1Quadrant SQ4
Quadrant NQ2
R
R-type StarsReflection NebulaRight Ascension
RARetrogradeRings
Red Stars
S
S-type GalaxySolar NebulaSQ3, Celestial Quadrant
S-type StarsSolar SystemSQ4, Celestial Quadrant
S0-type GalaxySolar WindStar Cluster
Sagittarius ArmSolsticeStar-forming Region
SatelliteSolstice, SummerStars
SB-type GalaxySolstice, WinterStellar Core
Schwarzchild RadiusSouthern Celestial PoleStellar Nursery
Scutum-Centaurus ArmSouthern Ecliptic PoleSubdwarf
Scutum-Crux ArmSpectral ClassificationSubgiant
Seas, LunarSpiral ArmSummer Solstice
Semi-Major AxisSpiral GalaxySunspot
SEPSpring EquinoxSuper Earth
Sidereal DaySQ1, Celestial QuadrantSupergiant
Sidereal PeriodSQ2, Celestial QuadrantSupernova
T
Terrestrial Planets
U
UniverseUrsa Major ClusterUrsa Major Family
V
Variable StarsVernal EquinoxVirgo Group
Variable Stars, PulsatingVirgo ClusterVirgo I
W
W-type StarsWinter SolsticeWhite Stars
White Dwarf
Y
Yellow Stars (G-type)Yellow Stars (F-type)
Z
Zodiac
A
A-type Stars
Abbreviations
Abell 1656
Absolute Magnitude
Absolute Temperature
Absorption Nebula
Angular Area
Aphelion
Apoapsis
Apollo Group
Apparent Magnitude
Arcturian Stars
Area, Angular
Aries, First Point of
Arm, Galactic
Arm, Orion
Arm, Outer
Arm, Perseus
Arm, Sagittarius
Arm, Scutum-Crux
Arm, Spiral
Asterism
Asteroid
Asteroid Belt
Astronomical Unit
AU
Autumnal Equinox
B
B-type Stars
Barred Spiral Galaxy
Bayer Designation
Bayer Family
Binary
Black Dwarf
Black Hole
Blue Stars
Bright Star Catalog
Bright Yellow Stars
Brown Dwarf
BSC
C
C-type Stars
Calcium Stars
Caldwell Catalogue
Canes Venatici Cloud
Canes Venatici I Group
Carbon Stars
CBR
Celestial Equator
Celestial Meridian
Celestial Pole
Celestial Pole, Northern
Celestial Pole, Southern
Celestial Quadrant
Celestial Quadrant NQ1
Celestial Quadrant NQ2
Celestial Quadrant NQ3
Celestial Quadrant NQ4
Celestial Quadrant SQ1
Celestial Quadrant SQ2
Celestial Quadrant SQ3
Celestial Quadrant SQ4
Celestial Sphere
Circumstellar Disc
Classical Kuiper Belt Object
Cluster
Cluster, Coma
Cluster, Galactic
Cluster, Globular
Cluster, Local
Cluster, Open
Cluster, Ursa Major
Cluster, Virgo
Cluster of Galaxies
Coma Cluster
Comet
Constellation Family
Constellations
Core, Stellar
Cosmic Background Radiation
Crater
Cubewano
CVn I Group
D
Dark Matter
Dark Nebula
Declination
Diameter
Disc, Circumstellar
Disc, Galactic
Drake Equation
Dwarf
Dwarf Planet
E
Eccentricity
Eclipse
Ecliptic
Ecliptic Pole, Northern
Elliptical Galaxy
Emission Nebula
Equator, Celestial
Equinox
Equinox, Autumnal
Equinox, Vernal
Exoplanet
Extrasolar Planet
F
F-type Stars
Family, Constellation
First Point of Aries
Flamsteed Numbers
Full Moon
G
G-type Stars
Galactic Arm
Galactic Cluster
Galactic Core
Galactic Disc
Galactic Nucleus
Galactic Pole, Northern
Galaxies
Galaxy, The
Galaxy Cluster
Galaxy Group
Galilean Moons
Gas Giants
Genitives
Giant
Globular Cluster
Gravity
Green Bank Equation
GrG
Group of Galaxies
H
HD Catalogue
Heavenly Waters Family
Hemisphere
Henry Draper Catalogue
Hercules Family
HR Catalog
Hubble Classification
I
IC
Inclination
Index Catalogue
Interstellar Medium
Irregular Galaxy
ISM
J
Jovian Planets
K
K-type Stars
Kelvin Scale
Kepler
Kuiper Belt
Kuiper Belt, Classical Object
L
La Caille Family
Lenticular Galaxy
Leo I Group
Life
Light Year
Limb
Local Cluster
Local Group
Luminosity
Lunar Seas
M
M-type Stars
M81 Group
M81-M82 Group
M94 Group
M96 Group
Magellanic Clouds
Magnitude
Magnitude, Absolute
Magnitude, Apparent
Main Sequence Stars
Maria
Mass
Meridian, Celestial
Messier Catalogue
Milky Way
Moons
Multiple Stars
N
N-type Stars
Nebula
Nebula, Absorption
Nebula, Dark
Nebula, Emission
Nebula, Planetary
Nebula, Reflection
NEP
Neutron Star
New General Catalogue
New Moon
NGC
NGC 3031 Group
NGC 4736 Group
North Polar Sequence
Northern Celestial Pole
Northern Ecliptic Pole
Northern Galactic Pole
NQ1, Celestial Quadrant
NQ2, Celestial Quadrant
NQ3, Celestial Quadrant
NQ4, Celestial Quadrant
Nubeculae Magellani
O
O-type Stars
Open Cluster
Optical Double
Orbit
Orbital Eccentricity
Orbital Inclination
Orbital Period
Orion Arm
Orion Family
Orange Stars
Outer Arm
P
Pale Yellow Stars
Parallax Second
Parsec
Periapse
Periapsis
Pericentre
Perihelion
Perseus Arm
Perseus Family
Photosphere
Planetary Nebula
Planets
Planets, Jovian
Planets, Terrestrial
Population I
Population II
Precession
Precession Circle
Primary
Prominence
Protoplanet
Protostar
Pulsating Variable
Q
Quadrangle
Quadrant, Celestial
Quadrant NQ1
Quadrant NQ2
Quadrant NQ3
Quadrant NQ4
Quadrant SQ1
Quadrant SQ2
Quadrant SQ3
Quadrant SQ4
R
R-type Stars
RA
Red Stars
Reflection Nebula
Retrograde
Right Ascension
Rings
S
S-type Galaxy
S-type Stars
S0-type Galaxy
Sagittarius Arm
Satellite
SB-type Galaxy
Schwarzchild Radius
Scutum-Centaurus Arm
Scutum-Crux Arm
Seas, Lunar
Semi-Major Axis
SEP
Sidereal Day
Sidereal Period
Solar Nebula
Solar System
Solar Wind
Solstice
Solstice, Summer
Solstice, Winter
Southern Celestial Pole
Southern Ecliptic Pole
Spectral Classification
Spiral Arm
Spiral Galaxy
Spring Equinox
SQ1, Celestial Quadrant
SQ2, Celestial Quadrant
SQ3, Celestial Quadrant
SQ4, Celestial Quadrant
Star Cluster
Star-forming Region
Stars
Stellar Core
Stellar Nursery
Subdwarf
Subgiant
Summer Solstice
Sunspot
Super Earth
Supergiant
Supernova
T
Terrestrial Planets
U
Universe
Ursa Major Cluster
Ursa Major Family
V
Variable Stars
Variable Stars, Pulsating
Vernal Equinox
Virgo Cluster
Virgo Group
Virgo I
W
W-type Stars
White Dwarf
Winter Solstice
White Stars
Y
Yellow Stars (G-type)
Yellow Stars (F-type)
Z
Zodiac

Indexes