In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is...

classifying stars into spectral types. The modern version of the stellar classification scheme was developed by Annie J. Cannon during the early 1900s....

reddening from the interstellar medium. In the current system of stellar classification, stars are grouped according to temperature, with the massive, very...

between the stars' absolute magnitudes or luminosities and their stellar classifications or effective temperatures. The diagram was created independently...

1885, Edward C. Pickering undertook an ambitious program of stellar spectral classification at Harvard College Observatory, in which a team of woman computers...

Stellar evolution is the process by which a star changes over the course of time. Depending on the mass of the star, its lifetime can range from a few...

development of contemporary stellar classification. With Edward C. Pickering, she is credited with the creation of the Harvard Classification Scheme, which was...

as reference points for deep-space imaging. Astrographs used for stellar classification sometimes consist of two identical telescopes on the same mount...

called the main-sequence stars on the diagram. A refined scheme for stellar classification was published in 1943 by William Wilson Morgan and Philip Childs...

Stellar dynamics is the branch of astrophysics which describes in a statistical way the collective motions of stars subject to their mutual gravity. The...

forth. Between 1910 and 1915, new discoveries increased interest in stellar classification, and work on the Henry Draper Catalogue itself started in 1911....

She published an important early catalog of stellar spectra using her own system of stellar classification, which was later adopted by the International...

Y-chromosomal Adam and Haplogroup A (Y-DNA) A0, a subdivision in stellar classification A0, sometimes written as 0xA0, is the hexadecimal representation...

component is a blue-white hued B-type main-sequence star with a stellar classification of B0.5V or B1V. It has 19±7 times the mass of the Sun (M☉) and...

star or bluestar may refer to: O-type star (a.k.a. blue star), a stellar classification Linckia laevigata, a sea star from the Indian and West Pacific Oceans...

activity made her famous in her own lifetime, and she produced a stellar classification system that is still in use today. Antonia Maury discerned in the...

dozen red giants and its hottest surviving main sequence star is of stellar classification B9 V. The abundance of elements other than hydrogen and helium,...

Class M (or M-class) planet, a classification used in the Star Trek media franchise Class M star, a stellar classification Class M, a driver's license,...

extinguisher Class D league, a classification of minor league baseball from 1902 to 1962 Class D star, a stellar classification Class D, IP addresses on a...

measurements which reveal objects' astrophysical properties, such as stellar classification and placement of a celestial body on its Wien curve. Most astronomical...

spectral patterns. From this concept, he developed the first system of stellar classification: the five Secchi classes. While his system was superseded by the...

presents as a late F- or early G-type main-sequence star with a stellar classification of F9 V or G0 V, respectively. It is roughly 3.5 billion years old...

Stellar structure models describe the internal structure of a star in detail and make predictions about the luminosity, the color and the future evolution...

making them a contact binary system. As a result, they have the same stellar classification of F8Vp, which matches the spectrum of a main-sequence star that...

studies have given various different values. The primary star has a stellar classification of B1III-IV. The luminosity class matches the spectrum of a star...

over time. When its resulting stellar classification enters a range known as the instability strip—typically at stellar class A—the outer envelope can...

Germany The Morgan-Keenan-Kellman system, a stellar classification system also known as Yerkes spectral classification Search for "mkk" , "m-kk", "mk-k", or...

Retrieved 2009-09-21. Gray, C. Richard O.; Corbally, J. (2009). Stellar Spectral Classification. Princeton University Press. pp. 115–122. ISBN 978-0691125114...

solar twins are stars that are particularly similar to the Sun. The stellar classification is a hierarchy with solar twin being most like the Sun followed...

Yellow star may refer to: A yellow star in stellar classification A yellow badge, a cloth patch that Jews were ordered to wear on their clothes Any plant...