23 relations: Apparent magnitude, Asterism (astronomy), Cancer (constellation), Chinese astronomy, Constellation, Delta Cancri, Earth, Ecliptic, Epoch (astronomy), Eta Cancri, Gamma Cancri, Ghost (Chinese constellation), Giant star, International Celestial Reference System, Latinisation of names, Light-year, Monthly Notices of the Royal Astronomical Society, Moon, Occultation, Planet, Star system, Stellar classification, Zodiac.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
In observational astronomy, an asterism is a popular known pattern or group of stars that are recognised in the night sky.
Cancer is one of the twelve constellations of the zodiac.
Astronomy in China has a long history, beginning from the Shang Dynasty (Chinese Bronze Age).
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.
Delta Cancri (δ Cancri, abbreviated Delta Cnc, δ Cnc) is a double star approximately 180 light-years from the Sun in the constellation of Cancer.
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
Eta Cancri, Latinized from η Cancri, is a single, orange-hued star in the zodiac constellation of Cancer.
Gamma Cancri (γ Cancri, abbreviated Gamma Cnc, γ Cnc) is a multiple star system in the constellation of Cancer.
The Ghost mansion is one of the Twenty-eight mansions of the Chinese constellations.
A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).
Latinisation or Latinization is the practice of rendering a non-Latin name (or word) in a Latin style.
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.
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction.
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
The zodiac is an area of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year.