· · · ·

Concepts

Index

Illustration of a Constellation, Leo
Location of the Galactic Centrepoint
The Northern Ecliptic Pole in Draco
Location of the First Point of Aries
Image of a Typical Open Cluster
The Sky at the Northern Celestial Pole
Part of the Hyades in Taurus
Location of the Galactic Nucleus
Location of the Vernal Equinox
The Milky Way
The Sun, Venus and Mercury
The First Point of Aries
Life at the Vernal Equinox
Illustration of a Red Giant
Location of the Northern Celestial Pole
A Typical K-type Star
Messier objects within the Virgo Cluster
A
A-type StarsApparent MagnitudeArm, Scutum-Crux
AbbreviationsArcturian StarsArm, Spiral
Abell 1656Area, AngularAsterism
Absolute MagnitudeAries, First Point ofAsteroid
Absolute TemperatureArm, GalacticAsteroid Belt
Absorption NebulaArm, OrionAstronomical Unit
Angular AreaArm, OuterAU
AphelionArm, PerseusAutumnal Equinox
Apollo GroupArm, Sagittarius
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
Carbon StarsCelestial Quadrant SQ2Cluster, Virgo
CBRCelestial Quadrant SQ3Cluster of Galaxies
Celestial EquatorCelestial Quadrant SQ4Coma Cluster
Celestial MeridianCelestial SphereComet
Celestial PoleClassical Kuiper Belt ObjectConstellation Family
Celestial Pole, NorthernClusterConstellations
Celestial Pole, SouthernCluster, ComaCosmic Background Radiation
Celestial QuadrantCluster, GalacticCrater
Celestial Quadrant NQ1Cluster, GlobularCubewano
D
Dark MatterDiameterDwarf
Dark NebulaDrake EquationDwarf Planet
Declination
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 StarsGalaxiesGenitives
Galactic ArmGalaxy, TheGiant
Galactic ClusterGalaxy ClusterGlobular Cluster
Galactic CoreGalilean MoonsGravity
Galactic NucleusGas GiantsGreen Bank Equation
Galactic Pole, Northern
H
HD CatalogueHenry Draper CatalogueHR Catalog
Heavenly Waters FamilyHercules FamilyHubble Classification
Hemisphere
I
ICInterstellar MediumISM
Index CatalogueIrregular Galaxy
J
Jovian Planets
K
K-type StarsKeplerKuiper Belt, Classical Object
Kelvin ScaleKuiper Belt
L
La Caille FamilyLight YearLocal Group
Leo I GroupLimbLuminosity
LifeLocal ClusterLunar Seas
M
M-type StarsMagnitude, ApparentMessier Catalogue
M96 GroupMain Sequence StarsMilky Way
Magellanic CloudsMariaMoons
MagnitudeMassMultiple Stars
Magnitude, AbsoluteMeridian, Celestial
N
N-type StarsNEPNorthern Ecliptic Pole
NebulaNeutron StarNorthern Galactic Pole
Nebula, AbsorptionNew General CatalogueNQ1, Celestial Quadrant
Nebula, DarkNew MoonNQ2, Celestial Quadrant
Nebula, EmissionNGCNQ3, Celestial Quadrant
Nebula, PlanetaryNorth Polar SequenceNQ4, Celestial Quadrant
Nebula, ReflectionNorthern Celestial PoleNubeculae Magellani
O
O-type StarsOrbital EccentricityOrion Family
Open ClusterOrbital PeriodOrange Stars
Optical DoubleOrion ArmOuter Arm
Orbit
P
Pale Yellow StarsPlanetary NebulaPrecession
Parallax SecondPlanetsPrecession Circle
ParsecPlanets, JovianProminence
PerihelionPlanets, TerrestrialProtoplanet
Perseus ArmPopulation IProtostar
Perseus FamilyPopulation IIPulsating Variable
Photosphere
Q
Quadrant, CelestialQuadrant NQ3Quadrant SQ3
Quadrant NQ1Quadrant NQ4Quadrant SQ4
Quadrant NQ2Quadrant SQ2
R
R-type StarsReflection NebulaRight Ascension
RARetrogradeRings
Red Stars
S
S-type GalaxySidereal PeriodSpring Equinox
S-type StarsSolar NebulaSQ2, Celestial Quadrant
Sagittarius ArmSolar SystemSQ3, Celestial Quadrant
SatelliteSolar WindSQ4, Celestial Quadrant
SB-type GalaxySolsticeStar Cluster
Schwarzchild RadiusSolstice, SummerStars
Scutum-Centaurus ArmSolstice, WinterSubdwarf
Scutum-Crux ArmSouthern Celestial PoleSubgiant
Seas, LunarSouthern Ecliptic PoleSummer Solstice
Semi-Major AxisSpectral ClassificationSunspot
SEPSpiral ArmSupergiant
Sidereal DaySpiral GalaxySupernova
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
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
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 SQ2
Celestial Quadrant SQ3
Celestial Quadrant SQ4
Celestial Sphere
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
Cosmic Background Radiation
Crater
Cubewano
D
Dark Matter
Dark Nebula
Declination
Diameter
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 Nucleus
Galactic Pole, Northern
Galaxies
Galaxy, The
Galaxy Cluster
Galilean Moons
Gas Giants
Genitives
Giant
Globular Cluster
Gravity
Green Bank Equation
H
HD Catalogue
Heavenly Waters Family
Hemisphere
Henry Draper Catalogue
Hercules Family
HR Catalog
Hubble Classification
I
IC
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
Leo I Group
Life
Light Year
Limb
Local Cluster
Local Group
Luminosity
Lunar Seas
M
M-type Stars
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
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 Period
Orion Arm
Orion Family
Orange Stars
Outer Arm
P
Pale Yellow Stars
Parallax Second
Parsec
Perihelion
Perseus Arm
Perseus Family
Photosphere
Planetary Nebula
Planets
Planets, Jovian
Planets, Terrestrial
Population I
Population II
Precession
Precession Circle
Prominence
Protoplanet
Protostar
Pulsating Variable
Q
Quadrant, Celestial
Quadrant NQ1
Quadrant NQ2
Quadrant NQ3
Quadrant NQ4
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
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
SQ2, Celestial Quadrant
SQ3, Celestial Quadrant
SQ4, Celestial Quadrant
Star Cluster
Stars
Subdwarf
Subgiant
Summer Solstice
Sunspot
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