Table of Contents
22 relations: Apparent magnitude, Aquila (constellation), Bayer designation, Binary star, Bright Star Catalogue, Celestial equator, Constellation, Doppler effect, Durchmusterung, Extinction (astronomy), Flamsteed designation, Giant star, Henry Draper Catalogue, Hipparcos, Interstellar medium, Margin of error, Minute and second of arc, Orbital period, Parallax, Smithsonian Astrophysical Observatory Star Catalog, Spectral line, Stellar classification.
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See 71 Aquilae and Apparent magnitude
Aquila (constellation)
Aquila is a constellation on the celestial equator.
See 71 Aquilae and Aquila (constellation)
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 71 Aquilae and Bayer designation
Binary star
A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other.
See 71 Aquilae and Binary star
Bright Star Catalogue
The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars, Yale Bright Star Catalogue, or just YBS, 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. 71 Aquilae and bright Star Catalogue are bright Star Catalogue objects.
See 71 Aquilae and Bright Star Catalogue
Celestial equator
The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth.
See 71 Aquilae and Celestial equator
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 71 Aquilae and Constellation
Doppler effect
The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave.
See 71 Aquilae and Doppler effect
Durchmusterung
In astronomy, Durchmusterung or Bonner Durchmusterung (BD) is an astrometric star catalogue of the whole sky, published by the Bonn Observatory in Germany from 1859 to 1863, with an extension published in Bonn in 1886.
See 71 Aquilae and Durchmusterung
Extinction (astronomy)
In astronomy, extinction is the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the observer.
See 71 Aquilae and Extinction (astronomy)
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 71 Aquilae 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.
Henry Draper Catalogue
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. 71 Aquilae and Henry Draper Catalogue are Henry Draper Catalogue objects.
See 71 Aquilae and Henry Draper Catalogue
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
Interstellar medium
The interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy.
See 71 Aquilae and Interstellar medium
Margin of error
The margin of error is a statistic expressing the amount of random sampling error in the results of a survey.
See 71 Aquilae and Margin of error
Minute and second of arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol, is a unit of angular measurement equal to of one degree.
See 71 Aquilae and Minute and second of arc
Orbital period
The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object.
See 71 Aquilae and Orbital period
Parallax
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight and is measured by the angle or half-angle of inclination between those two lines.
Smithsonian Astrophysical Observatory Star Catalog
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue, created by Smithsonian Institution, a research institute.
See 71 Aquilae and Smithsonian Astrophysical Observatory Star Catalog
Spectral line
A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum.
See 71 Aquilae and Spectral line
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
See 71 Aquilae and Stellar classification
References
Also known as 71 Aql, ADS 14081, ADS 14081 A, GC 28725, GSC 05177-01878, HD 196574, HIC 101847, HIP 101847, HR 7884, IDS 20332-0127, IRAS 20357-0116, L Aquilae, SAO 144649, TD1 27042, WARPS J2038.3-0106.