Table of Contents
19 relations: Am star, Apparent magnitude, Bayer designation, Boötes, Constellation, Effective temperature, Flamsteed designation, Fraunhofer lines, Giant star, Hydrogen spectral series, Light-year, Photosphere, Radial velocity, Solar luminosity, Solar mass, Solar radius, Star, Stellar classification, Stellar rotation.
Am star
An Am star or metallic-line star is a type of chemically peculiar star of spectral type A whose spectrum has strong and often variable absorption lines of metals such as zinc, strontium, zirconium, and barium, and deficiencies of others, such as calcium and scandium. 22 Boötis and am star are am stars.
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See 22 Boötis and Apparent magnitude
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek or Latin letter followed by the genitive form of its parent constellation's Latin name.
See 22 Boötis and Bayer designation
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.
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 22 Boötis 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 22 Boötis 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 22 Boötis and Flamsteed designation
Fraunhofer lines
The Fraunhofer lines are a set of spectral absorption lines.
See 22 Boötis and Fraunhofer lines
Giant star
A giant star has a substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
Hydrogen spectral series
The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula.
See 22 Boötis and Hydrogen spectral series
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.
Photosphere
The photosphere is a star's outer shell from which light is radiated.
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 22 Boötis and Radial velocity
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 22 Boötis and Solar luminosity
Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
Solar radius
Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun.
See 22 Boötis 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 22 Boötis and Stellar classification
Stellar rotation
Stellar rotation is the angular motion of a star about its axis.
See 22 Boötis and Stellar rotation
References
Also known as 22 Boo, F Boötis.