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1 Cassiopeiae is a star in the constellation Cassiopeia. [1]

13 relations: Apparent magnitude, Bright Star Catalogue, Cassiopeia (constellation), Constellation, Durchmusterung, Earth, Henry Draper Catalogue, Light-year, Monthly Notices of the Royal Astronomical Society, Smithsonian Astrophysical Observatory Star Catalog, Star, Stellar classification, Subgiant.

The apparent magnitude (m) of a celestial object is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.

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The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.

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Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty.

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In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).

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In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.

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Earth (also the world, in Greek: Gaia, or in Latin: Terra), is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to accommodate life.

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The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.

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A light-year (abbreviation: ly), sometimes written light year, is a unit of length used informally to express astronomical distances.

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Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

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The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.

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A star is a luminous sphere of plasma held together by its own gravity.

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In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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A subgiant is a star that is slightly brighter than a normal main-sequence (dwarf) star of the same spectral class, but not as bright as true giant stars.

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References

[1] https://en.wikipedia.org/wiki/1_Cassiopeiae

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