The Dark Horse Nebula is a large dark nebula complex located in the constellation Ophiuchus. Stretching across an area of 10 degrees, it is one of the most prominent groups of dark nebulae in the night sky.| www.constellation-guide.com
Serpens is a large constellation in the northern sky. It represents the snake. It is divided into Serpens Caput (the serpent's head) and Serpens Cauda (the serpent's tail) by the constellation Ophiuchus.| www.constellation-guide.com
The Sombrero Galaxy (Messier 104, NGC 4594), is a peculiar galaxy located 31.1 million light-years away in the constellation Virgo, near the border with Corvus. It can be spotted in binoculars and small telescopes.| www.constellation-guide.com
The Pinwheel Galaxy (M101) is a grand design spiral galaxy located 20.9 million light years away in the constellation Ursa Major. It is one of the brightest and largest spiral galaxies in the sky. It appears in the region of the Big Dipper.| www.constellation-guide.com
Corvus, the Crow, is a small constellation in the southern sky. It represents the sacred bird of Apollo. The constellation is home to the navigational star Gienah and the famous Antennae Galaxies (NGC 4038 and NGC 4039).| www.constellation-guide.com
Circinus is a small, faint constellation located in the southern sky. It represents the draughtsman's compass. The constellation is home to the Circinus Galaxy, the X-ray source Circinus X-1, and the planetary nebula NGC 5315.| www.constellation-guide.com
Antlia is a small, faint constellation in the southern sky. It represents the Air Pump. It is home to the Antlia Dwarf Galaxy (PGC 29194), the Antlia Cluster of galaxies, and the interacting galaxies catalogued as IC 2545.| www.constellation-guide.com
The Northern Cross is a prominent asterism formed by the brightest stars in the constellation Cygnus. It appears in a rich Milky Way field and outlines the body of the celestial Swan.| www.constellation-guide.com
The largest stars in the known universe, listed here, are mostly cool red supergiants and hypergiants. Their radii are notoriously difficult to measure for several reasons.| Star Facts
The Coalsack Nebula is one of the best known dark nebulae in the sky, located in the constellation Crux.| www.constellation-guide.com
Messier 83 (M83), also known as the Southern Pinwheel Galaxy, is a barred spiral galaxy located in the southern constellation Hydra. M83 lies at a distance of 15.21 million light years from Earth and has an apparent magnitude of 7.54. It has the designation NGC 5236 in the New General Catalogue. The Southern Pinwheel Galaxy… Read More »Messier 83: Southern Pinwheel Galaxy| Messier Objects
Alpha Centauri is the nearest star system to the Sun, located at a distance of only 4.37 light years or 1.34 parsecs from Earth. It is the brightest star in Centaurus constellation and the third brightest star in sky.| www.constellation-guide.com
Argo Navis (the Ship Argo) is an obsolete constellation located in the southern sky. It was divided into three smaller constellations – Carina (the Keel), Puppis (the Stern) and Vela (the Sails) in the 18th century.| www.constellation-guide.com
Equuleus is the smallest constellation in the northern sky. It represents a little horse or foal and lies near the larger horse, Pegasus. The constellation is home to the yellow giant Kitalpha and the spiral galaxy NGC 7015.| www.constellation-guide.com
Acrux, Alpha Crucis (α Cru), is a multiple star system located at a distance of 320 ly from Earth in the constellation Crux. It is the brightest star of the Southern Cross.| Star Facts
The Ghost of Jupiter (NGC 3242) is a planetary nebula located approximately 4,800 light years away in the constellation Hydra. With an apparent magnitude of 8.60, it can be observed in amateur telescopes.| www.constellation-guide.com
Hydra is the largest constellation in the sky. Located in the southern celestial hemisphere, the constellation contains the open cluster Messier 48, the Porpoise Galaxy (NGC 2936), and the Southern Pinwheel Galaxy (M83).| www.constellation-guide.com
Cygnus, the Swan, is one of the largest northern constellations. Recognizable for the Northern Cross, it is home to the bright supergiant Deneb, the North America Nebula (NGC 7000) and the Gamma Cygni Nebula (IC 1318).| www.constellation-guide.com
Zubeneschamali, Beta Librae (β Lib), is a blue-white main sequence star located at a distance of 185 light years from Earth in the constellation Libra.| Star Facts
Libra is one of the southern zodiac constellations. It is home to Methuselah Star (HD 140283), one of the oldest stars known, the nearby red dwarf Gliese 581, and the barred spiral galaxies NGC 5885 and NGC 5792.| www.constellation-guide.com
Hercules is one of the largest constellations in the sky. Representing the mythical Greek hero, the constellation is home to the Hercules Globular Cluster (M13), the globular cluster Messier 92, and the Hercules Cluster of galaxies.| www.constellation-guide.com
Boötes (the Herdsman or Plowman) is a large northern constellation dominated by a kite-shaped asterism. The constellation is home to Arcturus, the brightest northern star, and the contrasting double star Izar.| www.constellation-guide.com
Ara is a small constellation in the southern sky. It represents the altar. It contains the open clusters NGC 6193 and the Ara Cluster, the planetary nebula known as the Stingray Nebula, and the pre-planetary Water Lily Nebula.| www.constellation-guide.com
Asterisms are defined as patterns formed by stars of one or more constellations. These star patterns are commonly recognized by observers across the world and once served as a basis for the modern 88 constellations.| www.constellation-guide.com
Mimosa, Beta Crucis (β Cru), is a multiple star system located at a distance of 280 ly in the constellation Crux. It is one of the stars of the Southern Cross.| Star Facts
Imai, Delta Crucis (δ Cru) is a blue-white subgiant star located at a distance of 345 ly in the constellation Crux. It is one of the stars of the Southern Cross.| Star Facts
Gacrux, Gamma Crucis (γ Cru), is a red giant star located at a distance of 88.6 ly in the constellation Crux. It is one of the stars that form the Southern Cross.| Star Facts
Musca is a small constellation in the southern celestial hemisphere. It represents the fly. The constellation is home to the Spiral Planetary Nebula (NGC 5189), the Hourglass Nebula (MyCn 18), and the Dark Doodad Nebula.| www.constellation-guide.com
Lupus (the Wolf) is a southern constellation located between Scorpius and Centaurus. It hosts the historic supernova remnant SN 1006, the globular clusters NGC 5824 and NGC 5986, and the Retina Nebula (IC 4406).| www.constellation-guide.com
Crux is the smallest and most distinctive constellation in the southern sky. Recognizable for the Southern Cross, formed by its brightest stars, it is home to the dark Coalsack Nebula and the Jewel Box Cluster (NGC 4755).| www.constellation-guide.com
Alpha Lupi (α Lup) is a hot blue giant star located 460 light-years away in the constellation Lupus (the Wolf). It is one of the closest supernova candidates to the Sun.| Star Facts
Carina is a constellation in the southern sky. It represents the keel of the ship Argo. It is home to Canopus, the second brightest star in the sky, and Eta Carinae, a massive star illuminating the Carina Nebula.| www.constellation-guide.com
Centaurus A is a peculiar galaxy located in the southern constellation Centaurus. It is the fifth brightest galaxy in the night sky, the nearest giant galaxy to the Milky Way, and one of the nearest radio galaxies to Earth.| www.constellation-guide.com
Cassiopeia is a prominent constellation in the northern sky. Recognizable for its W shape, the constellation is home to the Heart Nebula, the Soul Nebula, the Pacman Nebula, and the open clusters Messier 52 and Messier 103.| www.constellation-guide.com
Leo is one of the largest constellations in the northern sky. It is home to Regulus, one of the brightest stars in the sky, the nearby red dwarf Wolf 359, and the Leo Triplet of galaxies.| www.constellation-guide.com
Gamma Centauri (γ Cen) is a binary star system located 130 light-years away in the constellation Centaurus. The system has the traditional name Muhlifain. It is the fourth brightest point of light in Centaurus.| Star Facts
The Spiral Planetary Nebula (NGC 5189) is a planetary nebula located approximately 1,780 – 3,000 light-years away in the southern constellation Musca (the Fly). It can be seen in small and medium telescopes.| www.constellation-guide.com
Canopus, Alpha Carinae (α Car), is a white bright giant star located at a distance of 310 light years from Earth in the constellation Carina. It is the second brightest star in the sky.| Star Facts
Vela is a constellation in the southern sky. It represents the sails of Argo Navis, the mythical ship of Jason and the Argonauts. The constellation contains the Vela Supernova Remnant, the Eight-Burst Nebula, and the Omicron Velorum Cluster| www.constellation-guide.com
Canis Major is a constellation in the southern sky. It represents the bigger dog following Orion, the Hunter. The constellation is home to Sirius, the brightest star in the sky, and the Canis Major Dwarf Galaxy.| www.constellation-guide.com
Epsilon Eridani (ε Eri) is an orange dwarf located 10.475 light-years away in the constellation Eridanus. It is the third nearest visible star to the Sun. It hosts a confirmed planet, Epsilon Eridani b.| Star Facts
Betelgeuse, Alpha Orionis (α Ori), is a red supergiant star and supernova candidate located 548 light-years away in the constellation Orion. Marking the Hunter's shoulder, it is one of the most recognizable stars in the night sky.| Star Facts
40 Eridani (Keid) is a triple star system located 16.34 light-years away in the constellation Eridanus. In Star Trek lore, primary component is the host star of the planet Vulcan.| Star Facts
Omega Centauri (Caldwell 80, NGC 5139) is the largest and most massive globular cluster in the Milky Way galaxy. With an apparent magnitude of 3.9, the cluster is easily visible to the unaided eye.| www.constellation-guide.com
Lyra is a small constellation in the northern sky. It represents the lyre of Orpheus. The constellation is home to Vega, the second brightest northern star, and the Ring Nebula (M57), a famous planetary nebula.| www.constellation-guide.com
Vulpecula is a faint constellation in the northern sky. It represents the little fox. The constellation is home to the red giant Anser, the Dumbbell Nebula (M27), and as asterism known as the Coathanger.| www.constellation-guide.com
Sagittarius is a large constellation in the southern sky. It is one of the constellations of the zodiac. It contains the Milky Way centre and some of the best known nebulae in the sky.| www.constellation-guide.com
Procyon, Alpha Canis Minoris (α CMi), is the eighth brightest star in the sky. It is the primary component in a binary star system located 11.46 light-years away in the constellation Canis Minor.| Star Facts
The nearest stars to the Sun include some of the brightest stars in the sky, but the majority of the 100 nearest stars are faint red dwarfs, like our nearest neighbour Proxima Centauri.| Star Facts
The Southern Cross is a bright, diamond-shaped asterism located in the far southern sky. Formed by the brightest stars of the constellation Crux, the asterism is commonly used to find the south celestial pole.| www.constellation-guide.com
47 Tucanae (NGC 104) is a globular cluster located 14,500 light-years away in the constellation Tucana. With an apparent magnitude of 4.09, it is the second brightest globular cluster in the sky, after Omega Centauri| www.constellation-guide.com
Alpha Centauri (α Cen) is a triple star system located at a distance of 4.37 light years from Earth in the constellation Centaurus. It is the nearest star system to the Sun and hosts the nearest extrasolar planets to Earth.| Star Facts
Zeta Ophiuchi (ζ Oph) is a hot blue star located 366 light-years away in the constellation Ophiuchus. It is the closest O-type to Earth. Shining at magnitude 2.57, it is the third brightest star in Ophiuchus.| Star Facts
Ophiuchus, the Serpent Bearer, is a large constellation near the celestial equator. Representing the healer Asclepius in Greek mythology, the constellation is visible from both hemispheres.| www.constellation-guide.com
Proxima Centauri, Alpha Centauri C (α Cen C), is a red dwarf star located at a distance of 4.244 light years from Earth in the constellation Centaurus. It is the nearest star to the Sun and hosts the two nearest planets, Proxima b and Proxima c.| Star Facts
Aquila, the Eagle, is a prominent northern constellation located near the celestial equator. It contains the bright Altair and the planetary nebulae NGC 6741 (the Phantom Streak Nebula) and NGC 6751 (the Glowing Eye Nebula).| www.constellation-guide.com
Altair, Alpha Aquilae (α Aql), is a white main sequence star located 16.73 ly from Earth in the constellation Aquila. It forms the Summer Triangle with Vega and Deneb.| Star Facts