Symbols


Jump to section:




Sky Chart

The Sun
Moon: First Quarter, Waxing
Moon: Full
Moon: Last Quarter, Waning
Moon: New
Mercury
Venus
Earth
Earth (Alternative)

Mars
Jupiter
Saturn
Uranus
Neptune
Pluto

Comet
Star
Ascending node
Descending node
Conjunction
Opposition
Quadrature
δ Declination
α Right Ascension

symbol Double Star
symbol Variable Star
symbol Galaxy
symbol Globular Cluster
symbol Open Cluster
symbol Planetary Nebula
symbol Diffuse Nebula
symbol Quasar

Top

Greek Alphabet

α Alpha
β Beta;
γ Gamma
δ Delta
ε Epsilon
ζ Zeta

η Eta
θ Theta
ι Iota
κ Kappa
λ Lambda
μ Mu

ν Nu
ξ Xi
ο Omicron
π Pi
ρ Rho
σ sSigma

τ Tau
υ Upsilon
φ Phi
χ Chi
ψ Psi
ω Omega

Top

Maths & Science

λ Wavelength
π Parallax
2Square
3Cube
Square Root

Cube Root
T is in years and R is in AU
r Radius
M Absolute Magnitude
m Apparent magnitude

v Velocity
H0 Hubble constant
D Distance
v Velocity
c Speed of light (300,000 km/s)

M Messier object, as in M31
d Distance
pc parsec
K Kelvin

Top



Constellations

List of all 88 modern constellations. Links point to Wikipedia entry. Abbreviations are frequently displayed on star maps. The origin refers to when the constellation was commonly assumed. 'A' refers to Ancient.

Constellation Abbrev.
Andromeda
Chained Lady
AND
Antlia
Air Pump
ANT
Apus
Bird of Paradise
APS
Aquarius
Water Bearer
AQR
Aquila
Eagle
AQL
Ara
Altar
ARA
Aries
Ram
ARI
Auriga
Charioteer
AUR
Boötes
Herdsman
BOO
Caelum
Engraving Tool
CAE
Camelopardalis
Giraffe
CAM
Cancer
Crab
CNC
Canes Venatici
Hunting Dogs
CVN
Canis Major
Larger Dog
CMA
Canis Minor
Smaller Dog
CMI
Capricornus
Water Goat
CAP
Carina
Keel
CAR
Cassiopeia
Queen
CAS
Centaurus
Centaur
CEN
Cepheus
King
CEP
Cetus
Whale/Sea Monster
CET
Chamaeleon
Chameleon
CHA
Circinus
Compasses
CIR
Columba
Dove
COL
Coma Berenices
Berenices Hair
COM
Corona Australis
Southern Crown
CRA
Corona Borealis
Northern Crown
CRB
Corvus
Crow, Raven
CRV
Crater
Cup
CRT
Crux
Southern Cross
CRU
Cygnus
Swan
CYG
Delphinus
Dolphin
DEL
Dorado
Swordfish
DOR
Draco
Dragon
DRA
Equuleus
Little Horse
EQL
Eridanus
River
ERI
Fornax
Furnace
FOR
Gemini
Twins
GEM
Grus
Crane
GRU
Hercules
Hercules the Hero
HER
Horologium
Clock
HOR
Hydra
Water Serpent
HYA
Hydrus
Water Snake
HYI
Indus
Indian
IND
Lacerta
Lizard
LAC
Leo
Lion
LEO
Leo Minor
Smaller Lion
LMI
Lepus
Hare
LEP
Libra
Scales
LIB
Lupus
Wolf
LUP
Lynx
Lynx
LYN
Lyra
Lyre
LYR
Mensa
Table
MEN
Microscopium
Microscope
MIC
Monoceros
Unicorn
MON
Musca
Fly
MUS
Norma
Square
NOR
Octans
Octant
OCT
Ophiuchus
Serpent Bearer
OPH
Orion
Orion the Hunter
ORI
Pavo
Peacock
PAV
Pegasus
Winged Horse
PEG
Perseus
Perseus the Hero
PER
Phoenix
Phoenix
PHE
Pictor
Easel
PIC
Pisces
Fishes
PSC
Piscis Austrinus
Southern Fish
PSA
Puppis
Stern
PUP
Pyxis
Compass
PYX
Reticulum
Net
RET
Sagitta
Arrow
SGE
Sagittarius
Archer
SGR
Scorpius
Scorpion
SCO
Sculptor
Sculptor
SCL
Scutum
Shield
SCT
Serpens
Serpent
SER
Sextans
Sextant
SEX
Taurus
Bull
TAU
Telescopium
Telescope
TEL
Triangulum
Triangle
TRI
Triangulum Australe
Southern Triangle
TRA
Tucana
Toucan
TUC
Ursa Major
Great Bear
UMA
Ursa Minor
Small Bear
UMI
Vela
Sails
VEL
Virgo
Maiden
VIR
Volans
Flying Fish
VOL
Vulpecula
Fox
VUL

Top


Acronyms / Abbreviations

You may find some abbreviations used on other web sites you visit. These are some of the most common.

AU   Astronomical Unit
BAe   British Aerospace
BST   British Summer Time
CCD   Charge-Coupled Device
Dec   Declination
ESA   European Space Agency
GMT   Greenwich Mean Time
GPS   Global Positioning System
HR   Hertzsprung-Russell
HST   Hubble Space Telescope
JPL   Jet Propulsion Laboratory
KAO   Kuiper Airborne Observatory
KSC   Kennedy Space Center
LY   Light Year
M     Messier
NASA   National Aeronautics and Space Administration
RA   Right Ascension
RAS   Royal Astronomical Society
SCT   Schmidt-Cassegrain Telescope
SETI   Search for ExtraTerrestrial Intelligence
SOHO   Solar Heliospheric Observatory
UTC   Coordinated Universal Time
VLA   Very Large Array
VLT   Very Large Telescope

Top



Links

Top