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#
2 Micron All-Sky Survey
2MASS
A
A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates
Apollo Group
Arm, Sagittarius
A-type Stars
Apparent Magnitude
Arm, Scutum-Crux
Abbreviations
Arcturian Stars
Arm, Spiral
Abell 1656
Area, Angular
Asterism
Absolute Magnitude
Aries, First Point of
Asteroid
Absolute Temperature
Arm, Galactic
Asteroid Belt
Absorption Nebula
Arm, Orion
Astronomical Unit
Angular Area
Arm, Outer
AU
Aphelion
Arm, Perseus
Autumnal Equinox
Apoapsis
B
B-type Stars
Black Dwarf
Bright Star Catalogue
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
Catalogue of stars with proper motions exceeding 0"5 annually
Celestial Sphere
Constellation Family
CBR
Circumstellar Disc
Constellations
Celestial Equator
Classical Kuiper Belt Object
Core, Stellar
Celestial Meridian
Cluster
Cosmic Background Radiation
Celestial Pole
Cluster, Coma
'Cr' Catalogue
Celestial Pole, Northern
Cluster, Galactic
Crater
Celestial Pole, Southern
Cluster, Globular
Cubewano
Celestial Quadrant
Cluster, Local
CVn I Group
Celestial Quadrant NQ1
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 Cluster
Gliese Catalogue
Galactic Arm
Galaxy Group
Gliese-Jahreiß Catalogue of Nearby Stars
Galactic Cluster
Galilean Moons
Globular Cluster
Galactic Core
Gas Giants
Gravitational Lensing
Galactic Disc
Genitives
Gravity
Galactic Nucleus
Giant
Green Bank Equation
Galactic Pole, Northern
Giant, Bright
GrG
Galaxies
Giant Planets
Group of Galaxies
Galaxy, The
GJ Catalogue
H
HD Catalogue
Henry Draper Catalogue
Hipparcos
Heavenly Waters Family
Hercules Family
HR Catalogue
Hemisphere
Himalia Group
Hubble Classification
I
IC
Index Catalogue
Irregular Galaxy
Ice Giant
Inner Solar System
ISM
Inclination
Interstellar Medium
J
Jovian Planets
K
K-type Stars
Kepler Input Catalogue
KOI
Kelvin Scale
Kepler Object of Interest
Kuiper Belt
Kepler
KIC
Kuiper Belt, Classical Object
L
La Caille Family
Life
Local Group
Lenticular Galaxy
Light Year
Luminosity
Leo I Group
Limb
Lunar Seas
LHS
Local Cluster
Luyten Half-Second Catalogue
M
M-type Stars
Magnitude, Absolute
Melotte Catalogue
M81 Group
Magnitude, Apparent
Meridian, Celestial
M81-M82 Group
Main Sequence Stars
Messier Catalogue
M94 Group
Maria
Milky Way
M96 Group
Mass
Moons
Magellanic Clouds
'Mel' Catalogue
Multiple Stars
Magnitude
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
Proper Motion
Pericentre
Planets, Jovian
Protoplanet
Perihelion
Planets, Terrestrial
Protostar
Perseus Arm
Population I
Pulsating Variable
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 Asteroid
Solar Nebula
SQ4, Celestial Quadrant
S-type Galaxy
Solar System
Star Cluster
S-type Stars
Solar System, Inner
Star-forming Region
S0-type Galaxy
Solar Wind
Stars
Sagittarius Arm
Solstice
Stellar Core
Satellite
Solstice, Summer
Stellar Nursery
SB-type Galaxy
Solstice, Winter
Stellar Parallax
Schwarzchild Radius
Southern Celestial Pole
Stony Asteroid
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
Silicaceous Asteroid
SQ3, Celestial Quadrant
T
Ternary System
Tertiary System
Triple System
Terrestrial Planets
Trinary System
Two Micron All-Sky Survey
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
Yale Catalogue of Bright Stars
Yellow Stars (G-type)
Yellow Stars (F-type)
Z
Zodiac
#
2 Micron All-Sky Survey
2MASS
A
A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates
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
Bright Giant
Blue Stars
Bright Star Catalogue
Bright Yellow Stars
Brown Dwarf
BSC
C
C-type Stars
Calcium Stars
Caldwell Catalogue
Canes Venatici Cloud
Canes Venatici I Group
Carbon Stars
Carme Group
Catalogue of stars with proper motions exceeding 0"5 annually
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
Collinder Catalogue
Coma Cluster
Comet
Constellation Family
Constellations
Core, Stellar
Cosmic Background Radiation
'Cr' Catalogue
Crater
Cubewano
CVn I Group
D
Dark Matter
Dark Nebula
Declination
Deep Near Infrared Survey of the Southern Sky
DEN
DENIS
Diameter
Disc, Circumstellar
Disc, Galactic
Drake Equation
Dwarf
Dwarf Planet
E
Earth-mass Planet
Eccentricity
Eclipse
Ecliptic
Ecliptic Pole, Northern
Elliptical Galaxy
Emission Nebula
Equator, Celestial
Equinox
Equinox, Autumnal
Equinox, Vernal
Eunomia Family
Evolved Star
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
Giant, Bright
Giant Planets
GJ Catalogue
Gliese Catalogue
Gliese-Jahreiß Catalogue of Nearby Stars
Globular Cluster
Gravitational Lensing
Gravity
Green Bank Equation
GrG
Group of Galaxies
H
HD Catalogue
Heavenly Waters Family
Hemisphere
Henry Draper Catalogue
Hercules Family
Himalia Group
Hipparcos
HR Catalogue
Hubble Classification
I
IC
Ice Giant
Inclination
Index Catalogue
Inner Solar System
Interstellar Medium
Irregular Galaxy
ISM
J
Jovian Planets
K
K-type Stars
Kelvin Scale
Kepler
Kepler Input Catalogue
Kepler Object of Interest
KIC
KOI
Kuiper Belt
Kuiper Belt, Classical Object
L
La Caille Family
Lenticular Galaxy
Leo I Group
LHS
Life
Light Year
Limb
Local Cluster
Local Group
Luminosity
Lunar Seas
Luyten Half-Second Catalogue
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
'Mel' Catalogue
Melotte Catalogue
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
Norse 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
OGLE
Open Cluster
Optical Double
Optical Gravitational Lensing Experiment
Orbit
Orbital Eccentricity
Orbital Inclination
Orbital Period
Orion Arm
Orion Family
Orange Stars
Outer Arm
P
Pale Yellow Stars
Parallax
Parallax Second
Parsec
Periapse
Periapsis
Pericentre
Perihelion
Perseus Arm
Perseus Family
Photosphere
Planetary Nebula
Planets
Planets, Earth-mass
Planets, Giant
Planets, Jovian
Planets, Terrestrial
Population I
Population II
Precession
Precession Circle
Primary
Prominence
Proper Motion
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 Asteroid
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
Silicaceous Asteroid
Solar Nebula
Solar System
Solar System, Inner
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
Stellar Parallax
Stony Asteroid
Subdwarf
Subgiant
Summer Solstice
Sunspot
Super Earth
Supergiant
Supernova
T
Ternary System
Terrestrial Planets
Tertiary System
Trinary System
Triple System
Two Micron All-Sky Survey
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
Yale Catalogue of Bright Stars
Yellow Stars (G-type)
Yellow Stars (F-type)
Z
Zodiac
Indexes
Main Index
v2.1g
eSky © copyright Mark Fisher 1999-2025