Noun
(astronomy) A major grouping of stars represented on a Hertzsprung-Russell diagram by a nearly uniform band of increasing luminosity with increasing surface temperature.
Used other than figuratively or idiomatically: see main, sequence.
Source: en.wiktionary.orgAbout 360 times as luminous and 3.75 times as massive as the Sun, it is expanding and cooling as it ages, having spent much of its life as a main sequence star of spectrum B6V. Source: Internet
A mid-sized yellow dwarf star, like the Sun, will remain on the main sequence for about 10 billion years. Source: Internet
Because of its vastly increased surface area, the surface of the Sun will be considerably cooler (2,600 K at its coolest) than it is on the main sequence. Source: Internet
Astronomers will sometimes refer to this stage as "zero age main sequence", or ZAMS. Source: Internet
As a result, red dwarfs have estimated lifespans far longer than the present age of the universe, and stars less than 0.8 M have not had time to leave the main sequence. Source: Internet
Act 1 main The overture begins with a thundering D minor cadence, followed by a short misterioso main sequence which leads into a light-hearted D major allegro. Source: Internet