Elements of astronomy: accompanied with numerous illustrations, a colored representation of the solar, stellar, and nebular spectra, and celestial charts of the northern and the southern hemisphere (1875)
Lockyer, Norman, Sir, 1836-1920 · New York, D. Appleton and company · leaf 165
Sun that itstemperature was two thousandtimes that of red-hot iron; atits nearest point, it was butone-sixth part of the Suns di-ameter from the surface. Thecomet of 1843 also made a verynear approach to the Sun, andwas visible in broad daylight. 300. Appearance presentedby a Comet.—In Fig. 66… … Donatis Comet (generalview). head contains a brighter por-tion still, called the nucleus. The tail is the dimmer partflowing from the head; as observed in different comets, it revolution. 299. Give instances showing how the distance of some comets fromthe Sun varies at different points of their…
Astronomy
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