α Centauri a is a single very high dpi and large print.
α Centauri a is the principal member, or primary, of the binary system, being slightly larger and more luminous than the Sun. It is a solar-like main-sequence star with a similar yellowish colour, whose stellar classification is spectral type G2 V. From the determined mutual orbital parameters, α Centauri a is about 10 percent more massive than the Sun, with a radius about 23 percent larger. The projected rotational velocity ( v·sin i ) of this star is 2.7 ± 0.7 km·s−1, resulting in an estimated rotational period of 22 days, which gives it a slightly faster rotational period than the Sun’s 25 days. When considered among the individual brightest stars in the sky (excluding the Sun), α Centauri a is the fourth brightest at an apparent visual magnitude of +0.01, being fractionally fainter than Arcturus at an apparent visual magnitude of −0.04.
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