Delta Scuti (δ Sct) is a yellow-white giant located 201 light years away in the constellation Scutum. The star serves as the prototype for a class of variable stars known as the Delta Scuti variables.| Star Facts
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 Teacup Galaxy is a massive quasar located 1,100 million light years away in the constellation Boötes. It is surrounded by an extended loop of gas that gives it the appearance of a teacup.| www.constellation-guide.com
The Umbrella Galaxy (NGC 4651) is a spiral galaxy located 72 million light years away in the northern constellation of Coma Berenices. It is a twin of the Milky Way.| 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
Canis Minor is a small constellation in the northern sky. It represents the smaller dog following Orion. It is home to Procyon, one of the brightest stars in the sky, and Luyten's Star, one of the nearest stars to Earth.| www.constellation-guide.com
Mizar, Zeta Ursae Majoris (ζ UMa), is a quadruple star system in Ursa Major. It lies at a distance of 82.9 ly. It is one of the stars that form the Big Dipper.| Star Facts
Alcor (80 Ursae Majoris, g Ursae Majoris) is a double star in the constellation Ursa Major. It is the fainter companion to the Big Dipper star Mizar.| Star Facts
Messier 101 (M101), also known as the Pinwheel Galaxy, is a spiral galaxy located in the constellation Ursa Major, the Great Bear. The Pinwheel Galaxy has an apparent magnitude of 7.86 and lies at a distance of 20.9 million light years from Earth. It has the designation NGC 5457 in the New General Catalogue. The… Read More »Messier 101: 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
Draco is one of the largest northern constellations. It represents the dragon Ladon in Greek mythology. The constellation is home to the Cat's Eye Nebula (NGC 6543), the Spindle Galaxy (M102), and the Tadpole Galaxy (Arp 188).| 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
Methuselah star (HD 140283) is a yellow subgiant located in the constellation Libra. With an estimated age of 12 billion years, it is one of the oldest stars known.| Star Facts
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
Muphrid, Eta Boötis (η Boo) is a yellow subgiant star located 37.2 light-years away in the constellation Boötes (the Herdsman). It forms the Kite with Arcturus and other bright stars of Boötes.| 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
Centaurus is a large constellation located in the southern celestial hemisphere. It is home to Alpha Centauri, the nearest star system to Earth, the bright galaxy Centaurus A, and the globular cluster Omega Centauri.| www.constellation-guide.com
Coma Berenices is a faint constellation in the northern sky. It is home to the Black Eye Galaxy (M64), the Needle Galaxy (NGC 4565), the grand design spiral galaxy Messier 100, and the bright nearby Coma Star Cluster.| www.constellation-guide.com
Virgo is the second largest constellation in the sky. It is home to the Sombrero Galaxy (M104), the Virgo Cluster of galaxies, and Spica, one of the brightest stars in the sky.| www.constellation-guide.com
Spica's Spanker is a quadrilateral asterism formed by the brightest stars in Corvus. Also known as the Sail, the asterism appears near Spica, the brightest star in Virgo. It can be used to find the Sombrero Galaxy (M104) and the Antennae Galaxies (NGC 4038 and NGC 4039.| 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
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
Regulus, Alpha Leonis (α Leo), is a multiple star system located at a distance of 79.3 ly from Earth in the constellation Leo. It marks the heart of the celestial Lion.| 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
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
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