All Constellations

All 88 constellations defined by the International Astronomical Union (IAU).

IAU Name English Name Opposition Season Declination DSO
Andromeda (And)Chained Maiden4 OctoberJun … Feb+53.2°+21.7°24
Antlia (Ant)Air Pump17 FebruaryDec … Apr-24.5°-40.4°0
Apus (Aps)Bird of Paradise22 May-67.5°-83.1°1
Aquarius (Aqr)Water Bearer28 AugustJul … Dec+3.3°-24.9°7
Aquila (Aql)Eagle14 JulyJun … Sep+18.7°-11.9°21
Ara (Ara)Altar10 June-45.5°-67.7°3
Aries (Ari)Ram4 NovemberAug … Feb+31.2°+10.4°5
Auriga (Aur)Charioteer19 DecemberAug … Apr+56.2°+27.9°17
Bootes (Boo)Herdsman2 MayDec … Sep+55.0°+7.4°4
Caelum (Cae)Engraving Tool2 DecemberOct … Jan-27.0°-48.7°1
Camelopardalis (Cam)Giraffe21 DecemberSep … Mar+86.1°+52.7°12
Cancer (Cnc)Crab27 JanuaryNov … May+33.1°+6.5°5
Canes Venatici (CVn)Hunting Dogs8 AprilJan … Jul+52.4°+27.8°17
Canis Maior (CMa)Great Dog2 JanuaryNov … Feb-11.0°-33.3°7
Canis Minor (CMi)Lesser Dog12 JanuaryOct … Apr+13.2°-0.4°3
Capricornus (Cap)Sea Goat4 AugustJul … Oct-8.4°-27.6°1
Carina (Car)Keel22 January-50.8°-75.7°5
Cassiopeia (Cas)Seated Queen8 OctoberJul … Jan+77.7°+46.7°38
Centaurus (Cen)Centaur3 AprilMar … Apr-30.0°-64.7°7
Cepheus (Cep)King25 AugustMay … Dec+88.7°+53.4°28
Cetus (Cet)Sea Monster18 OctoberSep … Dec+10.5°-24.9°9
Chamaeleon (Cha)Chameleon24 February-75.3°-83.1°1
Circinus (Cir)Compass7 May-55.4°-70.6°1
Columba (Col)Dove18 DecemberNov … Feb-27.1°-43.1°1
Coma Berenices (Com)Bernice's Hair30 MarchDec … Jul+33.3°+13.3°24
Corona Australis (CrA)Southern Crown30 JuneJul … Aug-36.8°-45.5°3
Corona Borealis (CrB)Northern Crown21 MayJan … Sep+39.7°+25.5°0
Corvus (Crv)Crow26 MarchJan … May-11.7°-25.2°2
Crater (Crt)Cup10 MarchJan … May-6.7°-25.2°0
Crux (Cru)Southern Cross26 March-55.7°-64.7°3
Cygnus (Cyg)Swan29 JulyMar … Dec+61.4°+27.7°40
Delphinus (Del)Dolphin29 JulyApr … Nov+20.9°+2.4°5
Dorado (Dor)Swordfish7 December-48.7°-70.1°1
Draco (Dra)Dragon16 JuneFeb … Sep+86.5°+47.5°7
Equuleus (Equ)Little Horse7 AugustJun … Nov+13.0°+2.5°0
Eridanus (Eri)River23 NovemberSep … Feb+0.4°-57.9°2
Fornax (For)Furnace6 NovemberNov … Jan-23.8°-39.5°4
Gemini (Gem)Twins6 JanuaryOct … Apr+35.4°+9.8°12
Grus (Gru)Crane28 August-36.3°-56.4°0
Hercules (Her)Hercules10 JuneMar … Oct+51.3°+3.7°7
Horologium (Hor)Clock13 November-39.6°-67.0°1
Hydra (Hya)Female Water Snake21 FebruaryJan … Apr+6.6°-35.7°10
Hydrus (Hyi)Male Water Snake29 October-57.8°-82.1°0
Indus (Ind)Indian9 August-45.0°-74.5°0
Lacerta (Lac)Lizard28 AugustMay … Dec+56.9°+35.2°3
Leo (Leo)Lion27 FebruaryNov … May+33.0°-6.7°16
Leo Minor (LMi)Lesser Lion21 FebruaryOct … Jun+41.4°+22.8°5
Lepus (Lep)Hare14 DecemberOct … Feb-10.8°-27.3°4
Libra (Lib)Scales10 MayMar … Jun-0.5°-30.0°3
Lupus (Lup)Wolf12 MayApr … May-29.8°-55.6°0
Lynx (Lyn)Lynx17 JanuaryNov … Apr+62.0°+33.0°11
Lyra (Lyr)Lyre2 JulyFeb … Dec+47.7°+25.7°7
Mensa (Men)Table Mountain13 December-69.7°-85.3°0
Microscopium (Mic)Microscope3 AugustJul … Sep-27.5°-45.1°0
Monoceros (Mon)Unicorn2 JanuaryOct … Mar+11.9°-11.4°18
Musca (Mus)Fly28 March-64.6°-75.7°3
Norma (Nor)Carpenter's Square22 May-42.3°-60.4°1
Octans (Oct)Octant9 August-74.3°-90.0°0
Ophiuchus (Oph)Serpent Bearer8 JuneMar … Aug+14.4°-30.2°18
Orion (Ori)Hunter14 DecemberSep … Mar+22.9°-11.0°21
Pavo (Pav)Peacock12 July-56.6°-75.0°3
Pegasus (Peg)Winged Horse4 SeptemberJun … Dec+36.6°+2.3°18
Perseus (Per)Hero16 NovemberAug … Mar+59.1°+30.9°18
Phoenix (Phe)Phoenix4 October-39.3°-57.8°0
Pictor (Pic)Painter's Easel15 December-42.8°-64.2°0
Pisces (Psc)Fishes4 OctoberJul … Jan+33.7°-6.3°5
Piscis Austrinus (PsA)Southern Fish24 AugustJul … Oct-24.8°-36.5°0
Puppis (Pup)Stern13 JanuaryNov … Feb-11.3°-51.1°10
Pyxis (Pyx)Compass31 JanuaryDec … Mar-17.4°-37.3°2
Reticulum (Ret)Reticle22 November-52.7°-67.2°0
Sagitta (Sge)Arrow14 JulyApr … Nov+21.6°+16.1°4
Sagittarius (Sgr)Archer3 JulyMay … Sep-11.7°-45.3°37
Scorpius (Sco)Scorpion1 JuneApr … Aug-8.3°-45.8°17
Sculptor (Scl)Sculptor30 SeptemberAug … Dec-24.8°-39.4°5
Scutum (Sct)Shield30 JuneApr … Sep-3.8°-15.9°7
Serpens (Ser)Serpent17 MayMar … Sep+25.7°-16.1°6
Sextans (Sex)Sextant19 FebruaryDec … May+6.4°-11.7°1
Taurus (Tau)Bull28 NovemberAug … Mar+31.1°-1.3°10
Telescopium (Tel)Telescope9 July-45.1°-57.0°0
Triangulum (Tri)Triangle26 OctoberJun … Mar+37.3°+25.6°7
Triangulum Australe (TrA)Southern Triangle22 May-60.3°-70.5°1
Tucana (Tuc)Toucan19 September-56.3°-75.3°2
Ursa Maior (UMa)Great Bear27 FebruaryNov … Jul+73.1°+28.3°24
Ursa Minor (UMi)Little Bear9 MayJan … Dec+90.0°+65.4°1
Vela (Vel)Sails11 February-37.2°-57.2°4
Virgo (Vir)Maiden10 AprilJan … Jun+14.4°-22.7°32
Volans (Vol)Flying Fish14 January-64.1°-75.5°0
Vulpecula (Vul)Fox24 JulyMar … Dec+29.5°+19.4°17

Opposition: The center of the constellation asterism is in opposition to the Sun on this day, i. e., it is at its highest point in the sky at local midnight. — Season: During these months, the constellation can be observed at night at a geographical latitude of 47° North. In the case of circumpolar constellations, these are near the zenith. — Declination: Northern and southern extent of the IAU constellation boundaries. — DSO: Number of described deep-sky objects.