| 释义 |
‖ facula Astron.|ˈfækjʊlə|
Chiefly pl. faculæ |ˈfækjʊliː|.
[L. facula, dim. of fac-em, fax torch.]
One of the bright or luminous spots or streaks on the surface of the sun, as distinguished from the dark spots or maculæ.
1706in Phillips (ed. Kersey), Facula, a little Torch: Among Modern Astronomers, Faculæ, are certain Bright or Shining Parts, which they have sometimes observed upon or about the Surface of the Sun. 1794Sullivan View Nat. II. 415 When they disappear, they are generally converted into faculæ or luminous spots. 1858Herschel Outlines Astron. (ed. 5) §388 Strongly marked..streaks, more luminous than the rest, called faculæ. 1881Stokes in Nature No. 625. 595 Sometimes faculæ will break out at the surface of the sun where there is no spot. |