Examples of using Main sequence in English and their translations into Italian
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Thus the star forms a self-regulating system in hydrostatic equilibrium that is stable over the course of its main sequence lifetime.
the brighter component of which is an orange giant and the fainter a yellow-white main sequence star.
-01° 03′ 46.0″ COROT-7(TYC 4799-1733-1) is a G-type main sequence star, slightly smaller
By matching the main sequence on the Hertzsprung-Russell diagram for a cluster at a known distance with that of a more distant cluster,
These stars are of particular interest in the search for extraterrestrial life because they are stable on the main sequence for a very long time 15 to 30 billion years,
the period of stay in the main sequence of stars only about 100 million years.
The strip intersects the upper part of the main sequence in the region of class"A" and"F" stars,
the Science Fiction Book Club omnibus Off the Main Sequence: The Other Science Fiction Stories of Robert A. Heinlein in 2005.
On a diagram with these axes, stars which fall to the right of the main sequence and the reddening bands drawn are significantly brighter in the K band than main sequence stars, including main sequence stars which have experienced reddening due to interstellar dust.
are becoming red giants; the position of the turn-off from the main sequence can be used to estimate the age of the cluster.
stars less than 0.8 M☉ have not had time to leave the main sequence.
such as the Sun, they can burn a larger proportion of their hydrogen before leaving the main sequence.
that a sizable fraction are disrupted before they reach the main sequence by gravitational interactions with nearby stars and dense clouds of gas.
can be on the main sequence, a degenerate dwarf(white dwarf),
Temperature===The surface temperature of a main sequence star is determined by the rate of energy production at the core
It is a blue-white star of the main sequence, having an absolute magnitude of -0.99
Giant stars have a much lower surface gravity than main sequence stars, while the opposite is the case for degenerate, compact stars such as white dwarfs.
As a result, the core temperature of main sequence stars only varies from 4 million kelvin for a small M-class star to 40 million kelvin for a massive O-class star.
In the lower main sequence, energy is primarily generated as the result of the proton-proton chain,
The spectrum of this star shows it to be a G-type main sequence star with a stellar classification of G0 V. Thought to be around 4 billion years old,