main sequence


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main sequence

n.
A major grouping of stars that forms a relatively narrow band from the upper left to the lower right when plotted according to luminosity and surface temperature on the Hertzsprung-Russell diagram.

main sequence

n
(Astronomy) astronomy
a. a diagonal band on the Hertzsprung Russell diagram containing about 90% of all known stars; stars evolve onto and then off the band during their lifetime
b. (as modifier): a main-sequence star.
Translations
séquence principale
References in periodicals archive ?
I've seen one reference that has the Sun leaving the main sequence in about 5.
Acting Minister for Industry, Innovation and Science, Senator the Hon Michaelia Cash, said the launch of Main Sequence Ventures is an important step to ensure we can further harness Australian innovation to create new enterprises and the jobs of tomorrow.
still shining in its main sequence, a main sequence star, exactly
The 47 papers also investigate dust formation around main sequence B-emission stars with large infrared excess, the centrifugal magneto-spheres of magnetic B-type stars, the density structure of 48 LibraeAEs circumstellar disk, and the origin of hard X-rays from ?
At this stable stage in a star's life cycle, it is known as a main sequence star and it will spend most of its life in this way.
Dubai: Jockey Rajiv Maragh paid his Dubai Sheema Classic (G1) hopeful Main Sequence the ultimate accolade when he described him as the best turf horse he has ever ridden.
Stars at the blue end of the main sequence are much more luminous than stars at the red end.
The 68 papers cover ingredients for solar models; chemical stratification in the sun and stars' excitation and damping properties of oscillations; new observational findings on main sequence, red giant, and compact stars; angular momentum transport: evolution of the solar and stellar internal rotation; shocks and turbulence; solar and stellar activity; the impact of seismic investigation on solar and stellar physics; new data, directions, and techniques for asteroseismology; and the development of the theory of stellar oscillation.
In this case, the secondary star does not cause a common envelope, but fills its Roche lobe near the end of the main sequence (terminal-age main sequence or TAMS).
7 per cent that of our Sun), and luminosity (1/8000 of the Sun) and say 'the main sequence ends there' and we can identify a particular star (with the designation 2MASS J0513-1403) as a representative of the smallest stars.
Since defeating 2012 Derby runner-up Main Sequence in the Brigadier Gerard Stakes at Sandown in May, William Haggas' colt has been beaten by just two horses - Al Kazeem twice and Declaration Of War - when making the podium in the Prince of Wales's Stakes (second) and Coral-Eclipse (third).
The evens favourite Main Sequence this occasion disappointing and David Lanigan's stable star was being ridden along before the home turn by Ted Durcan and eventually faded to finish a well-beaten fourth.