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Relative Galactic Position of the Solar System

Relative Galactic Position of the Northern Celestial Pole

Messier objects within the Virgo Cluster

A
	A-type Stars	Apollo Group	Arm, Sagittarius
	Abbreviations	Apparent Magnitude	Arm, Scutum-Crux
	Abell 1656	Arcturian Stars	Arm, Spiral
	Absolute Magnitude	Area, Angular	Asterism
	Absolute Temperature	Aries, First Point of	Asteroid
	Absorption Nebula	Arm, Galactic	Asteroid Belt
	Angular Area	Arm, Orion	Astronomical Unit
	Aphelion	Arm, Outer	AU
	Apoapsis	Arm, Perseus	Autumnal Equinox

B
	B-type Stars	Black Dwarf	Bright Star Catalog
	Barred Spiral Galaxy	Black Hole	Bright Yellow Stars
	Bayer Designation	Bright Giant	Brown Dwarf
	Bayer Family	Blue Stars	BSC
	Binary

C
	C-type Stars	Celestial Quadrant NQ2	Cluster, Open
	Calcium Stars	Celestial Quadrant NQ3	Cluster, Ursa Major
	Caldwell Catalogue	Celestial Quadrant NQ4	Cluster, Virgo
	Canes Venatici Cloud	Celestial Quadrant SQ1	Cluster of Galaxies
	Canes Venatici I Group	Celestial Quadrant SQ2	Collinder Catalogue
	Carbon Stars	Celestial Quadrant SQ3	Coma Cluster
	Carme Group	Celestial Quadrant SQ4	Comet
	CBR	Celestial Sphere	Constellation Family
	Celestial Equator	Circumstellar Disc	Constellations
	Celestial Meridian	Classical Kuiper Belt Object	Core, Stellar
	Celestial Pole	Cluster	Cosmic Background Radiation
	Celestial Pole, Northern	Cluster, Coma	'Cr' Catalogue
	Celestial Pole, Southern	Cluster, Galactic	Crater
	Celestial Quadrant	Cluster, Globular	Cubewano
	Celestial Quadrant NQ1	Cluster, Local	CVn I Group

D
	Dark Matter	DEN	Disc, Galactic
	Dark Nebula	DENIS	Drake Equation
	Declination	Diameter	Dwarf
	Deep Near Infrared Survey of the Southern Sky	Disc, Circumstellar	Dwarf Planet

E
	Earth-mass Planet	Elliptical Galaxy	Equinox, Vernal
	Eccentricity	Emission Nebula	Eunomia Family
	Eclipse	Equator, Celestial	Evolved Star
	Ecliptic	Equinox	Exoplanet
	Ecliptic Pole, Northern	Equinox, Autumnal	Extrasolar Planet

F
	F-type Stars	First Point of Aries	Full Moon
	Family, Constellation	Flamsteed Numbers

G
	G-type Stars	Galaxy, The	Giant Planets
	Galactic Arm	Galaxy Cluster	Globular Cluster
	Galactic Cluster	Galaxy Group	Gravitational Lensing
	Galactic Core	Galilean Moons	Gravity
	Galactic Disc	Gas Giants	Green Bank Equation
	Galactic Nucleus	Genitives	GrG
	Galactic Pole, Northern	Giant	Group of Galaxies
	Galaxies	Giant, Bright

H
	HD Catalogue	Henry Draper Catalogue	HR Catalog
	Heavenly Waters Family	Hercules Family	Hubble Classification
	Hemisphere	Hipparcos

I
	IC	Index Catalogue	Irregular Galaxy
	Ice Giant	Inner Solar System	ISM
	Inclination	Interstellar Medium

J
	Jovian Planets

K
	K-type Stars	Kepler Input Catalog	KOI
	Kelvin Scale	Kepler Object of Interest	Kuiper Belt
	Kepler	KIC	Kuiper Belt, Classical Object

L
	La Caille Family	Light Year	Local Group
	Lenticular Galaxy	Limb	Luminosity
	Leo I Group	Local Cluster	Lunar Seas
	Life

M
	M-type Stars	Magnitude	Meridian, Celestial
	M81 Group	Magnitude, Absolute	Messier Catalogue
	M81-M82 Group	Magnitude, Apparent	Milky Way
	M94 Group	Main Sequence Stars	Moons
	M96 Group	Maria	Multiple Stars
	Magellanic Clouds	Mass

N
	N-type Stars	Neutron Star	Northern Celestial Pole
	Nebula	New General Catalogue	Northern Ecliptic Pole
	Nebula, Absorption	New Moon	Northern Galactic Pole
	Nebula, Dark	NGC	NQ1, Celestial Quadrant
	Nebula, Emission	NGC 3031 Group	NQ2, Celestial Quadrant
	Nebula, Planetary	NGC 4736 Group	NQ3, Celestial Quadrant
	Nebula, Reflection	Norse Group	NQ4, Celestial Quadrant
	NEP	North Polar Sequence	Nubeculae Magellani

O
	O-type Stars	Orbit	Orion Arm
	OGLE	Orbital Eccentricity	Orion Family
	Open Cluster	Orbital Inclination	Orange Stars
	Optical Double	Orbital Period	Outer Arm
	Optical Gravitational Lensing Experiment

P
	Pale Yellow Stars	Perseus Family	Population II
	Parallax	Photosphere	Precession
	Parallax Second	Planetary Nebula	Precession Circle
	Parsec	Planets	Primary
	Periapse	Planets, Earth-mass	Prominence
	Periapsis	Planets, Giant	Protoplanet
	Pericentre	Planets, Jovian	Protostar
	Perihelion	Planets, Terrestrial	Pulsating Variable
	Perseus Arm	Population I

Q
	Quadrangle	Quadrant NQ3	Quadrant SQ2
	Quadrant, Celestial	Quadrant NQ4	Quadrant SQ3
	Quadrant NQ1	Quadrant SQ1	Quadrant SQ4
	Quadrant NQ2

R
	R-type Stars	Reflection Nebula	Right Ascension
	RA	Retrograde	Rings
	Red Stars

S
	S-type Galaxy	Solar System	SQ4, Celestial Quadrant
	S-type Stars	Solar System, Inner	Star Cluster
	S0-type Galaxy	Solar Wind	Star-forming Region
	Sagittarius Arm	Solstice	Stars
	Satellite	Solstice, Summer	Stellar Core
	SB-type Galaxy	Solstice, Winter	Stellar Nursery
	Schwarzchild Radius	Southern Celestial Pole	Stellar Parallax
	Scutum-Centaurus Arm	Southern Ecliptic Pole	Subdwarf
	Scutum-Crux Arm	Spectral Classification	Subgiant
	Seas, Lunar	Spiral Arm	Summer Solstice
	Semi-Major Axis	Spiral Galaxy	Sunspot
	SEP	Spring Equinox	Super Earth
	Sidereal Day	SQ1, Celestial Quadrant	Supergiant
	Sidereal Period	SQ2, Celestial Quadrant	Supernova
	Solar Nebula	SQ3, Celestial Quadrant

T
	Ternary System	Tertiary System	Triple System
	Terrestrial Planets	Trinary System

U
	Universe	Ursa Major Cluster	Ursa Major Family

V
	Variable Stars	Vernal Equinox	Virgo Group
	Variable Stars, Pulsating	Virgo Cluster	Virgo I

W
	W-type Stars	Winter Solstice	White Stars
	White Dwarf

Y
	Yellow Stars (G-type)	Yellow Stars (F-type)

Z
	Zodiac