16 relations: Apparent magnitude, Astronomical spectroscopy, Asymptotic giant branch, Barium star, Binary star, Giant star, Leo (constellation), Light-year, Monthly Notices of the Royal Astronomical Society, Radial velocity, S-process, Sextans, Stellar classification, Stellar evolution, Stellar parallax, White dwarf.
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.
New!!: 58 Leonis and Apparent magnitude · See more »
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light and radio, which radiates from stars and other celestial objects.
New!!: 58 Leonis and Astronomical spectroscopy · See more »
Asymptotic giant branch
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.
New!!: 58 Leonis and Asymptotic giant branch · See more »
Barium star
Barium stars are spectral class G to K giants, whose spectra indicate an overabundance of s-process elements by the presence of singly ionized barium, Ba II, at λ 455.4 nm.
New!!: 58 Leonis and Barium star · See more »
Binary star
A binary star is a star system consisting of two stars orbiting around their common barycenter.
New!!: 58 Leonis and Binary star · See more »
Giant star
A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
New!!: 58 Leonis and Giant star · See more »
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.
New!!: 58 Leonis and Leo (constellation) · See more »
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.
New!!: 58 Leonis and Light-year · See more »
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
New!!: 58 Leonis and Monthly Notices of the Royal Astronomical Society · See more »
Radial velocity
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
New!!: 58 Leonis and Radial velocity · See more »
S-process
The slow neutron-capture process or s-process is a series of reactions in nuclear astrophysics that occur in stars, particularly AGB stars.
New!!: 58 Leonis and S-process · See more »
Sextans
Sextans is a minor equatorial constellation which was introduced in 1687 by Johannes Hevelius.
New!!: 58 Leonis and Sextans · See more »
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
New!!: 58 Leonis and Stellar classification · See more »
Stellar evolution
Stellar evolution is the process by which a star changes over the course of time.
New!!: 58 Leonis and Stellar evolution · See more »
Stellar parallax
Stellar parallax is the apparent shift of position of any nearby star (or other object) against the background of distant objects.
New!!: 58 Leonis and Stellar parallax · See more »
White dwarf
A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
New!!: 58 Leonis and White dwarf · See more »