英和和英

出典:『Wikipedia』 (2011/04/26 10:44 UTC 版)

英語による解説

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HD 98618 is a star 126 light years from Earth that is almost identical in most respects to the sun; it has therefore been proposed as a candidate solar twin. However, like the solar twin 18 Scorpii, HD 98618 has a lithium abundance significantly higher than that of the Sun ([Li/H] = +0.45 ± 0.08). Meléndez & Ramírez (2007) have suggested that HD 98618 be considered a "quasi solar twin", since they have now identified a solar twin, HIP 56948, with lithium content identical within the observational error to the Sun's.