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21 relations: Apparent magnitude, Arcturus, Asterism (astronomy), Boötes, Celestial sphere, Constellation, Cor Caroli, Denebola, Great Diamond, Leo (constellation), Light-year, Luminosity, Northern Cross (asterism), Northern Hemisphere, Regulus, Sky & Telescope, Spica, Stellar classification, Summer Triangle, Virgo (constellation), Winter Triangle.
Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
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Arcturus
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Asterism (astronomy)
In observational astronomy, an asterism is a popular known pattern or group of stars that are recognised in the night sky.
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Boötes
Boötes is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere.
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Celestial sphere
In astronomy and navigation, the celestial sphere is an abstract sphere with an arbitrarily large radius concentric to Earth.
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Constellation
A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.
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Cor Caroli
Cor Caroli is the traditional name for the binary star also designated Alpha Canum Venaticorum (α Canum Venaticorum, abbreviated Alpha CVn, α CVn), although the International Astronomical Union now regards the name as only applying to the brightest component.
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Denebola
Denebola, also designated Beta Leonis (β Leonis, abbreviated Beta Leo, β Leo) is the second-brightest star in the zodiac constellation of Leo, although the two components of the γ Leonis double star, which are unresolved to the naked eye, have a combined magnitude brighter than it.
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Great Diamond
The Great Diamond is an asterism.
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Leo (constellation)
Leo is one of the constellations of the zodiac, lying between Cancer the crab to the west and Virgo the maiden to the east.
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Light-year
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
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Luminosity
In astronomy, luminosity is the total amount of energy emitted per unit of time by a star, galaxy, or other astronomical object.
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Northern Cross (asterism)
The Northern Cross is a prominent astronomical asterism in the northern hemisphere celestial sphere, corresponding closely with the constellation Cygnus The Swan.
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Northern Hemisphere
The Northern Hemisphere is the half of Earth that is north of the Equator.
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Regulus
Regulus, also designated Alpha Leonis (α Leonis, abbreviated Alpha Leo, α Leo), is the brightest star in the constellation of Leo and one of the brightest stars in the night sky, lying approximately 79 light years from the Sun.
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Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
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Spica
Spica, also designated Alpha Virginis (α Virginis, abbreviated Alpha Vir, α Vir), is the brightest star in the constellation of Virgo and the 16th brightest star in the night sky.
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Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
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Summer Triangle
The Summer Triangle is an astronomical asterism involving an imaginary triangle drawn on the northern hemisphere's celestial sphere, with its defining vertices at Altair, Deneb, and Vega, the brightest stars in the three constellations of Aquila, Cygnus, and Lyra, respectively.
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Virgo (constellation)
Virgo is one of the constellations of the zodiac.
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Winter Triangle
The Winter Triangle is an astronomical asterism formed from three of the brightest stars in the winter sky.
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References
[1] https://en.wikipedia.org/wiki/Spring_Triangle
