Alnilam
Alnilam (ε Ori) is a blue supergiant star located 1,180 light-years away in the constellation of Orion. It forms Orion's Belt with Alnitak and Mintaka.| Star Facts
Alnilam (ε Ori) is a blue supergiant star located 1,180 light-years away in the constellation of Orion. It forms Orion's Belt with Alnitak and Mintaka.| Star Facts
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
Gemini (the Twins) is one of the northern zodiac constellations. It is home to the bright stars Pollux and Castor, the open cluster Messier 35, the planetary nebula known as the Medusa Nebula, and the supernova remnant IC 443 (the Jellyfish Nebula).| www.constellation-guide.com
Alnitak, Zeta Orionis (ζ Ori), is a triple star system located at a distance of 1,260 light years. It forms Orion's Belt with Alnilam and Mintaka.| Star Facts
Messier 47 (M47) is a bright open star cluster located in the southern constellation Puppis. The cluster lies at a distance of 1,600 light years from Earth and has an apparent magnitude of 4.2. It has the designation NGC 2422 in the New General Catalogue. Messier 47 occupies an area of 30 arc minutes of… Read More »Messier 47| Messier Objects
Messier 46 (M46) is an open star cluster located in the southern constellation Puppis, the Stern. It occupies an area of 27 arc minutes of apparent sky, almost the size of the full Moon, and has a spatial diameter of 30 light years. Messier 46 is a relatively bright, large cluster containing about 500 stars.… Read More »Messier 46| Messier Objects
Learn about the 88 modern constellations, their names, history, how to identify them, why we see different constellations at different times of year, and other fun facts.| www.constellation-guide.com
Southern constellations are the 52 constellations located in the southern celestial hemisphere.| 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
Puppis is a constellation located in the southern hemisphere. Home to many notable stars, it represents the stern of the ship Argo, on which Jason and the Argonauts sailed to get the Golden Fleece.| 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
Rigel (β Ori) is a blue-whlue-white supergiant star located 848 light-years away in the constellation Orion. It is the most luminous star within 1,000 ly of Earth.| Star Facts
Orion, the Hunter, is one of the best known constellations in the sky. Home to Orion's Belt, the Orion Nebula, and the bright stars Rigel and Betelgeuse, the constellation lies north of the celestial equator and is visible from both hemispheres.| 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
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
Taurus is a large constellation in the northern sky. It is home to Aldebaran, one of the brightest stars in the sky, the Crab Nebula, a supernova remnant, and the Pleiades and the Hyades, the nearest open clusters to Earth.| www.constellation-guide.com
Messier 45 (M45), also known as the Pleiades or Seven Sisters, is a bright open star cluster located in the constellation Taurus, the Bull. The Pleiades cluster has an apparent magnitude of 1.6 and lies at an average distance of 444 light years from Earth. The cluster is also known as Melotte 22. It does… Read More »Messier 45: Pleiades| Messier Objects
Orion’s Belt is one of the most familiar asterisms in the night sky. It is formed by three stars in the constellation Orion: Alnitak, Alnilam, and Mintaka. The bright blue stars are part of the hourglass-shaped constellation figure of Orion.| www.constellation-guide.com
Dubhe, Alpha Ursae Majoris (α UMa) is a spectroscopic binary star in Ursa Major constellation. It is part of the Big Dipper and known as one of the Pointer Stars.| Star Facts
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 Winter Triangle, or the Great Southern Triangle, is an asterism formed by the bright stars Betelgeuse in Orion, Procyon in Canis Minor and Sirius in Canis Major constellation.| www.constellation-guide.com
The Winter Hexagon, or the Winter Circle, is a prominent asterism formed by the bright stars Rigel, Aldebaran, Capella, Castor and Pollux, Procyon and Sirius.| www.constellation-guide.com
Pollux, Beta Geminorum (β Gem), is an orange giant star located at a distance of 33.78 ly in the constellation Gemini. It is 43 times more luminous than the Sun.| Star Facts
Aldebaran, Alpha Tauri (α Tau), is an orange giant star located at a distance of 65.3 ly from Earth in the constellation Taurus. It marks the eye of the Bull.| Star Facts
The Big Dipper is an asterism formed by the seven brightest stars in the constellation Ursa Major. It is also known as the Plough, the Saucepan, and the Great Wagon.| www.constellation-guide.com
Ursa Major, the Great Bear, is the largest constellation in the northern sky. It is home to the Big Dipper asterism, formed by its seven brightest stars, and to many well-known deep sky objects.| 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
The list of the 300 brightest stars in the night sky, along with the stars' Bayer designations, apparent magnitudes, distances, and spectral types.| Star Facts
Antares, Alpha Scorpii (α Sco) is a red supergiant and supernova candidate located at a distance of 550 ly from Earth in the constellation Scorpius. It is the brightest star in Scorpius and one of the brightest stars in the sky.| Star Facts
Vega (Alpha Lyrae) is a fast-spinning white main sequence star located 25.04 light-years away in the constellation Lyra. Shining at magnitude 0.026, it is the fifth brightest star in the sky. It forms the Summer Triangle with Altair and Deneb.| Star Facts
The life cycle of a star is the process of change in structure and composition that every star undergoes over time. It can last for a few million years or trillions of years, depending on the star’s mass.| Star Facts
Greek constellations are the 48 ancient constellations listed by the Greek astronomer Claudius Ptolemy in his Almagest in the 2nd century CE. Most of them are associated with stories from Greek mythology.| www.constellation-guide.com
