Table of Contents
22 relations: Andromeda (constellation), Apparent magnitude, Celestial sphere, Constellation, Effective temperature, Flamsteed designation, Giant star, Light-year, Monthly Notices of the Royal Astronomical Society, Photosphere, Proper motion, Radial velocity, Red clump, Solar luminosity, Solar mass, Solar radius, Star, Stellar classification, Stellar core, Stellar evolution, Stellar parallax, Triple-alpha process.
Andromeda (constellation)
Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy, and one of the 88 modern constellations.
See 3 Andromedae and Andromeda (constellation)
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See 3 Andromedae and Apparent magnitude
Celestial sphere
In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth.
See 3 Andromedae and Celestial sphere
Constellation
A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.
See 3 Andromedae and Constellation
Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
See 3 Andromedae and Effective temperature
Flamsteed designation
A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.
See 3 Andromedae and Flamsteed designation
Giant star
A giant star has a substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
See 3 Andromedae and Giant star
Light-year
A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km (Scientific notation: 9.4607304725808 × 1012 km), which is approximately 5.88 trillion mi.
See 3 Andromedae and Light-year
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal in astronomy, astrophysics and related fields.
See 3 Andromedae and Monthly Notices of the Royal Astronomical Society
Photosphere
The photosphere is a star's outer shell from which light is radiated.
See 3 Andromedae and Photosphere
Proper motion
Proper motion is the astrometric measure of the observed changes in the apparent places of stars or other celestial objects in the sky, as seen from the center of mass of the Solar System, compared to the abstract background of the more distant stars.
See 3 Andromedae and Proper motion
Radial velocity
The radial velocity or line-of-sight velocity of a target with respect to an observer is the rate of change of the vector displacement between the two points.
See 3 Andromedae and Radial velocity
Red clump
The red clump is a clustering of red giants in the Hertzsprung–Russell diagram at around 5,000 K and absolute magnitude (MV) +0.5, slightly hotter than most red-giant-branch stars of the same luminosity.
See 3 Andromedae and Red clump
Solar luminosity
The solar luminosity is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.
See 3 Andromedae and Solar luminosity
Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
See 3 Andromedae and Solar mass
Solar radius
Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun.
See 3 Andromedae and Solar radius
Star
A star is a luminous spheroid of plasma held together by self-gravity.
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
See 3 Andromedae and Stellar classification
Stellar core
A stellar core is the extremely hot, dense region at the center of a star.
See 3 Andromedae and Stellar core
Stellar evolution
Stellar evolution is the process by which a star changes over the course of its lifetime and how it can lead to the creation of a new star.
See 3 Andromedae and Stellar evolution
Stellar parallax
Stellar parallax is the apparent shift of position (parallax) of any nearby star (or other object) against the background of distant stars.
See 3 Andromedae and Stellar parallax
Triple-alpha process
The triple-alpha process is a set of nuclear fusion reactions by which three helium-4 nuclei (alpha particles) are transformed into carbon.
See 3 Andromedae and Triple-alpha process
References
Also known as 3 And.