| Constellations of the northern hemisphere |
| Constellations which span the celestial equator have been grouped under this heading for convenience. |
| A | B | C | D | E | G | H | L | M | O | P | S | T | U | V |
| Name | Meaning | Major Stars | Interesting features |
| Andromeda | Daughter of Queen Cassiopeia and King Cepheus | alpha Andromedae | Double star, gamma Andromedae Great Andromeda Galaxy Planetary nebula NGC 7662 Open cluster NGC 752 |
| Aquila | The Eagle | Altair (alpha Aquilae) | Cepheid variable
star eta Aquilae Double stars 15 Aquilae and 57 Aquilae |
| Aries | The Ram | alpha Arietis (Hamal) | Double stars gamma Arietis, lambda Arietis and pi Arietis |
| Auriga | The Charioteer | Capella (alpha Aurigae) | Variable star epsilon Aurigae Double stars theta Aurigae and 4 Aurigae Open clusters M36 (NGC 1960), M37 (NGC 2099) and M38 (NGC 1912) |
| Boötes | The Herdsman | Arcturus (alpha Boötes) | Double stars Izar or Pulcherrima (epsilon Boötes), mu, nu1,
nu2 and xi Boötes Quadrantid meteors |
| Camelopardalis | The Giraffe | Brightest stars mag 4 | Double stars beta Camelopardalis, Struve 1694 or 32 Cam Open cluster NGC 1502 Galaxy NGC 2403 |
| Cancer | The Crab | No bright stars | Double
stars zeta Cancri and iota Cancri Open cluster M44 (NGC 2632), Praesepe or the Beehive Cluster |
| Canes Venatici | The Hunting Dogs | Alpha Canum Venaticorum (Cor Caroli), a double star of mag 2.9 | Globular cluster M3 (NGC 5272) Galaxies M51 (NGC 5194), the Whirlpool Galaxy, NGC 5195, a satellite galaxy of M51, and M94 (NGC 4736) |
| Canis Minor | The Lesser Dog | Procyon (alpha Canis Minoris) | Procyon forms a triangle of bright stars with Sirius and Betelgeux |
| Cassiopeia | Wife of King Cepheus and mother of Andromeda | Variable star gamma Cassiopeiae, an unstable blue giant | Double star eta Cassiopeiae Multiple star iota Cassiopeiae Open clusters M52 (NGC 7654) and NGC 457 |
| Cepheus | King Cepheus of Ethiopia, husband of Cassiopeia and father of Andromeda | Variable star delta Cephei, a yellow-white supergiant | Variable star mu Cephei, a red
supergiant, also called the Garnet Star Double stars beta Cephei, delta Cephei, xi Cephei and omicron Cephei |
| Coma Berenices | Berenice's Hair | No bright stars |
Double star 24 Comae Berenicis Coma Star cluster (also called Melotte 111) Globular cluster M53 (NGC 5024) Galaxy M64 (NGC 4826) sometimes called the Black Eye Galaxy |
| Corona Borealis | The Northern Crown | Alphekka or Gemma (alpha Coronae Borealis) | Double stars zeta Coronae Borealis and nu1
nu2 Coronae Borealis Variable stars R Coronae Borealis which varies between Mag 6 and 15 and T Coronae Borealis (the Blaze Star), a recurrent nova |
| Cygnus | The Swan | Deneb, a white supergiant of Mag 1.2 and Sadr | Double stars beta Cygni or Albireo, omicron1
Cygni and 61 Cygni Variable stars chi Cygni and P Cygni Planetary nebula NGC 6826, the Blinking Planetary Nebulae NGC 6992 (part of the Veil Nebula), the Cygnus Rift or Northern Coalsack and NGC 7000, the North America Nebula Black hole Cygnus X-1 Radio galaxy Cygnus A |
| Delphinus | The Dolphin | Sualocin & Rotanev | Double stars gamma Deplhini and Struve 2725 |
| Draco | The Dragon | gamma Draconis or Etamin, mag 2.2 | Double stars mu Draconis, nu Draconis, omicron Draconis, psi Draconis, 16-17 Draconis and 40-41 Draconis Triple star 39 Draconis Planetary nebula NGC6543 |
| Equuleus | The Little Horse | No bright stars | Double stars gamma Equulei and epsilon Equulei |
| Gemini | The Twins | Castor (alpha Geminorum) and Pollux (beta Geminorum) Alhena (gamma Geminorum) | Double star 38 Geminorum Variable stars eta Geminorum and zeta Geminorum Open cluster M35 (NGC 2168) Planetary nebula NGC 2392, also known as Eskimo or Clown Face Nebula Geminid meteors |
| Hercules | Son of Zeus | Variable star Rasalgethi (alpha Herculis), a red giant varying between mag 3 and 4 | Double stars kappa Herculis, rho Herculis and 95 Herculis Globular clusters M13 (NGC 6205), the brightest in the northern sky and M92 (NGC 6341) |
| Lacerta | The Lizard | No bright stars | 3 naked-eye novae observed in Lacerta since 1910 |
| Leo | The Lion | Regulus (alpha Leonis), mag 1.4 and Denebola and Zosma | Double stars Algieba (gamma Leonis) and tau Leonis Triple star zeta Leonis Variable star R Leonis Galaxies M65 (NGC 3623), M66 (NGC 3627), M95 (NGC 3351) and M96 (NGC 3368) Leonid meteors |
| Leo Minor | The Lesser Lion | No bright stars | A faint constellation containing nothing of note for the amateur astronomer |
| Lynx | The Lynx | No bright stars | Double stars
5 Lyncis, 12 Lyncis, 19 Lyncis and 38 Lyncis Triple star 41 Lyncis |
| Lyra | The Lyre | Vega (alpha Lyrae) mag 0 |
Double star zeta Lyrae Quadruple star epsilon Lyrae Variable stars beta Lyrae and delta Lyrae, both double variables Planetary nebula M57 (NGC 6720), the Ring Nebula Lyrid meteors |
| Monoceros | The Unicorn | No bright stars |
Double stars delta Monocerotis and epsilon (or 8) Monocerotis Triple star beta Monocerotis Variable star S Monocerotis Open clusters M50 (NGC 2323), NGC 2232, NGC 2244 surrounded by the faint Rosette Nebula and NGC 2264 embedded in the Cone Nebula |
| Ophiuchus | The Serpent Holder | beta Ophiuchi, an orange
giant of mag 3 Barnard's Star (mag 9.5) is the next closest star to the Sun after the alpha Centauri system |
Double stars tau Ophiuchi, 36 Ophiuchi and 70 Ophiuchi which is close to the solar system Multiple star rho Ophiuchi Variable star RS Ophiuchi, a recurrent nova Open clusters IC 4665 and NGC 6633 Globular clusters M10 (NGC 6254) and M12 (NGC 6218) |
| Orion | The Hunter | Betelgeuse
(alpha Orionis), a red supergiant variable star fluctuating between 0 and 1.3 mag Rigel (beta Orionis), a blue-white supergiant of mag 0.2 Bellatrix (gamma Orionis), a blue giant of mag 1.6 Alnilam (epsilon Orionis), a blue supergiant of mag 1.7 | Double stars Mintaka (delta Orionis), Alnitak (zeta Orionis), theta2 Orionis, iota Orionis
and lambda Orionis Multiple stars The Trapezium (theta1 Orionis) at the heart of the Orion Nebula and sigma Orionis Open cluster NGC 1981 Nebulae M42 (NGC 1976) and M43 (NGC 1982) form the Great Orion Nebula; NGC 1977 and the Horseshoe Nebula The Orionid meteors |
| Pegasus | The Winged Horse | Markab (alpha Pegasi) Scheat (beta Pegasi), a variable red giant Algenib (gamma Pegasi) | Double stars Enif (epsilon Pegasi) and
1 Pegasi Globular cluster M15 (NGC 7078), one of the best in the northern sky |
| Perseus | A Greek hero | alpha Persei, a white supergiant of mag
1.8 Algol (beta Persei), an eclipsing binary, varying between mag 2.1 and 3.4 |
Double stars epsilon Persei, a blue-white star of mag 3, zeta Persei, a 3rd mag blue supergiant and eta Persei Variable stars Algol and rho Persei, a red giant of mag 3 - 4 Open clusters the Double Cluster (NGC 869 and NGC 884) and M34 (NGC 1039), a large 5th mag cluster Perseid meteors |
| Pisces | The Fishes | Brightest stars of 4th mag |
Double stars Alrescha (alpha Piscium), zeta Piscium, rho and 94 Piscium, and psi Piscium Variable star TX or 19 Piscium, a red giant of around mag 5 Galaxy M74 (NGC 628) |
| Sagitta | The Arrow | Brightest stars of 4th mag |
Double star zeta Sagittae Variable stars S Sagittae and VZ Sagittae Recurrent nova WZ Sagittae Globular cluster M71 (NGC 6838) |
| Serpens | The Serpent | No bright stars |
Split into 2 separate halves on either side of Ophiuchus Double stars beta Serpentis, delta Serpentis, theta Serpentis and nu Serpentis Open cluster M16 (NGC 6611) surrounded by the Eagle Nebula Globular cluster M5 (NGC 5904) |
| Taurus | The Bull | Aldebaran (alpha Tauri), an orange giant of mag 0.9 and Alnath (beta Tauri) | Double stars theta1 theta2 Tauri,
kappa1 kappa2 Tauri, sigma1
sigma2 Tauri, phi Tauri and chi Tauri Variable star lambda Tauri Open clusters The Hyades and M45 The Pleiades Nebula M1, the Crab Nebula The Taurid meteors |
| Triangulum | The Triangle | No bright stars |
Double star iota Trianguli Galaxy M33 (NGC 598) |
| Ursa Major | The Great Bear | Dubhe (alpha Ursae Majoris) and Merak (beta Ursae Majoris) both of 2nd mag | Double star xi Ursae Majoris Multiple star Mizar (zeta Ursae Majoris) Galaxies M81 (NGC 3031), M82 (NGC 3034) and M101 (NGC 5457) |
| Ursa Minor | The Little Bear | Polaris (alpha Ursae Minoris), a 2nd magnitude supergiant within 1° of the north celestial pole | Stars, Kochab and Yildun. Double star gamma Ursae Minoris |
| Virgo | The Virgin | Spica (alpha Virginis), a blue- white star of mag 1 | Double stars gamma Virginis, theta Virginis and tau Virginis Galaxies M49 (NGC 4472), M58 (NGC 4579), M60 (NGC 4649), M84 (NGC 4374), M87 (NGC 4486), also known as radio source Virgo A, and M104 (NGC 4594), the Sombrero Galaxy |
| Vulpecula | The Fox | No bright stars |
Double star alpha Vulpeculae Open cluster The Coathanger, also known as Collinder 399 or Brocchi's Cluster Planetary nebula M27 (NGC 6853), the Dumbbell Nebula |
| Constellations of the southern hemisphere |
| A | C | D | E | F | G | H | I | L | M | N | O | P | R | S | T | V |
| Name | Meaning | Major Stars | Interesting features |
| Antlia | The Air Pump | No bright stars | Double star zeta1 and zeta2 Antliae |
| Apus | The Bird of Paradise | No bright stars | Double star delta1 and delta2 Apodis |
| Aquarius | The Water Carrier | zeta Aquarii (double star) | Planetary nebulae NGC 7009 and NGC 7293 Globular clusters M2 (NGC 7089) and M72 (NGC 6981) Aquarid meteors |
| Ara | The Altar | No bright stars | Open cluster NGC 6193 Globular cluster NGC 6397 |
| Caelum | The Chisel | No bright stars | Double star gamma Caeli |
| Canis Major | The Great Dog | Sirius, alpha Canis Majoris Mirzam, beta Canis Majoris Wezen, delta Canis Majoris Adhara, epsilon Canis Majoris | Open cluster NGC 2287 Compact cluster NGC 2362 |
| Capricornus | The Sea Goat | No bright stars |
Double stars alpha Capricorni (Algedi or Giedi) and beta Capricorni Globular cluster M30 (NGC 7099) |
| Carina | The Keel | Canopus (alpha Carinae), a white supergiant, Miaplacidus (beta Carinae), and epsilon Carinae, an orange giant star | Variable star eta Carinae Double star upsilon Carinae Open clusters IC 2602 sometimes called the Southern Pleiades, NGC 2516, NGC 3114 and NGC 3532 Nebula NGC 3372 which contains the erratic variable star eta Carinae |
| Centaurus | The Centaur | alpha Centauri, a pair of yellow stars and beta Centauri (Hadar or Agena), a blue giant | Double star 3
Centauri Planetary nebula NGC 3918, also called the Blue Planetary Globular cluster omega Centauri (NGC 5139), the largest and brightest globular cluster in the sky Galaxy NGC 5128, a strong source of radio emission |
| Cetus | The Whale | Deneb Kaitos (beta Ceti), a yellow giant of mag 2 and tau Ceti which is very similar to the Sun | Variable star Mira (omicron Ceti), a red giant Double stars Menkar (alpha Ceti) and gamma Ceti Galaxy M77 (NGC 1068), a spiral galaxy |
| Chamaeleon | The Chameleon | No bright stars |
Double star delta Chamaeleontis Planetary nebula NGC 3195 |
| Circinus | The Compasses | No bright stars | Double star alpha Circini |
| Columba | The Dove | No bright stars | mu Columbae, a 5th Mag white star is one of 3 "runaway" stars that appear to be diverging from a point in Orion |
| Corona Australis | The Southern Crown | No bright stars | Double stars gamma Coronae Australis, kappa Coronae Australis and lambda Coronae Australis Globular cluster NGC 6541 |
| Corvus | The Crow | No bright stars | Double stars delta Corvi and Struve 1669 |
| Crater | The Cup | No bright stars | Contains nothing of particular interest to amateur astronomers |
| Crux | The Southern Cross | Acrux (alpha Crucis) and beta Crucis Mimosa | Double star mu Crucis Open cluster NGC 4755, also known as the Jewel Box The Coalsack Nebula |
| Dorado | The Goldfish | Variable star beta Doradus | Galaxy the Large Magellanic Cloud Nebula NGC 2070 or Tarantula Nebula |
| Eridanus | The River | alpha Eridani or Achernar, mag 0.5, Cursa, mag 2 and epsilon Eridani, a yellow dwarf similar to the sun | Double stars theta Eridani and 32 Eridani Triple star omicron Eridani Planetary nebula NGC 1535 |
| Fornax | The Furnace | No bright stars | Double star alpha Fornacis |
| Grus | The Crane | Alnair (alpha Gruis), mag 1.7 | Double stars delta Gruis and mu Gruis |
| Horologium | The Pendulum Clock | No bright stars | Variable stars R Horologii and TW Horologii |
| Hydra | The Water Snake | Alphard (alpha Hydrae) | Double stars epsilon Hydrae, 27 Hydrae, 54 Hydrae and 1 Hydrae Variable stars R Hydrae and U Hydrae Open cluster M48 (NGC 2548) Planetary nebula NGC 3242 Globular cluster M68 (NGC 4590) Galaxy M83 (NGC 5236), an 8th mag spiral galaxy |
| Hydrus | The Lesser Water Snake | No bright stars | Double star pi Hydri |
| Indus | The Indian | No bright stars | Double star theta Indi |
| Lepus | The Hare | No bright stars | Double star
gamma Leporis Variable star R Leporis or Hind's Crimson Star Open cluster NGC 2017 Globular cluster M79 (NGC 1904) |
| Libra | The Scales | No bright stars |
Double stars Zubenelgenubi (alpha Librae) and mu Librae Multiple star iota Librae Variable star delta Librae, an eclipsing binary Globular cluster NGC 5897 |
| Lupus | The Wolf | Double stars epsilon Lupi and eta Lupi, both mag 3 | Double stars kappa Lupi, mu Lupi, xi Lupi and pi Lupi Open cluster NGC 5822 |
| Mensa | The Table Mountain | No bright stars | Part of the Large Magellanic Cloud strays into Mensa from Dorado |
| Microscopium | The Microscope | No bright stars | Double star alpha Microscopii |
| Musca | The Fly | Double star beta Muscae, mag 3 |
Double star theta Muscae The dark Coalsack Nebula extends into Musca from Crux |
| Norma | The Level | No bright stars | Double stars
gamma1 gamma2 Normae, epsilon Normae and iota1
Normae Open cluster NGC 6087 |
| Octans | The Octant | No bright stars |
Double star lambda Octantis The South Pole Star (sigma Octantis), a yellow-white giant of mag 5.4 |
| Pavo | The Peacock | Peacock (alpha Pavonis), ablue-white star of mag 1.9 | Double star xi Pavonis Variable star kappa Pavonis, a yellow-white supergiant, mag 3.9 - 4.8 |
| Phoenix | The Phoenix | No bright stars>/td> |
Double stars beta Phoenicis, a pair of 4th mag yellow stars and zeta Phoenicis Variable star zeta Phoenicis |
| Pictor | The Painter's Easel | No bright stars | beta Pictoris is a possible site for planetary formation |
| Piscis Austrinus | The Southern Fish | Fomalhaut (alpha Piscis Austrinis), a white star of mag 1.2 | Double stars beta Piscis Austrini and gamma Piscis Austrini |
| Puppis | The Stern | xi Puppis, a 3rd mag yellow supergiant L2 Puppis, a red giant varaible of 3-6 mag | Double stars k Puppis and
V puppis, an eclipsing binary Open clusters M46 (NGC 2437), M47 (NGC 2422), NGC 2451 and NGC 2477 |
| Pyxis | The Compass | Brightest stars are mag 4 | Recurrent nova T Pyxidis |
| Reticulum | The Net | Brightest star mag 3 | Double star zeta Reticuli |
| Sagittarius | The Archer | Contains many Milky Way stars | Multiple star beta Sagittarii Variable stars W Sagittarii and X Sagittarii Open clusters M23 (NGC 6494), M24, M25 (IC 4725) and NGC 6530 Globular cluster M22 (NGC 6656) Nebulae M8 (NGC 6523) or Lagoon Nebula, M17 (NGC 6530), also known as the Omega Nebula, Swan Nebula and Horseshoe Nebula and M20 (NGC 6514) the Triffid Nebula |
| Scorpius | The Scorpion | Antares (alpha Scorpii), a variable red supergiant of mag 0.9 to 1.2: also Shaula (lambda scorpi) | Double stars Graffias (beta Scorpii), zeta1
zeta2 Scorpii, mu1 mu2 Scorpii,
nu Scorpii and omega1 omega2 Scorpii Multiple star xi Scorpii, 2 pairs of stars gravitationally connected to each other Open clusters M6 (NGC 6405) also called the Butterfly Cluster, M7 (NGC 6475) and NGC 6231 Globular cluster M4 (NGC 6121) |
| Sculptor | The Sculptor | Brightest stars of 4th mag | Contains the south galactic pole Double stars epsilon Sculptoris and kappa1 Sculptoris Variable star R Sculptoris, a red giant Galaxies NGC 55 and NGC 253 |
| Scutum | The Shield | Contains Milky Way star fields | Variable stars delta Scuti and R Scuti Open cluster M11 (NGC 6705), the Wild Duck Cluster |
| Sextans | The Sextant | No bright stars |
Double star 17-18 Sextantis Galaxy NGC 3115, the Spindle Galaxy |
| Telescopium | The Telescope | No bright stars | Double star delta1 delta2 Telescopii |
| Triangulum Australe | The Southern Triangle | alpha, beta and gamma Trianguli Australis, the corners of the triangle are of mags 2 and 3 | Open cluster NGC 6025 |
| Tucana | The Toucan | Few bright stars |
Double stars delta Tucanae and kappa Tucanae Multiple star beta Tucanae Globular clusters 47 Tucanae (NGC 104), one of the best in the sky, and NGC 362 Galaxy, the Small Magellanic Cloud |
| Vela | The Sails | gamma Velorum, a multiple star, the brightest of which is 2nd mag and delta Velorum, a double star of mags 2 and 5 | Open clusters IC 2391 and NGC 2547 |
| Volans | The Flying Fish | Brightest stars of 4th mag | Double stars gamma Volantis and epsilon Volantis |
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