Kippax, John Robert, 1849- [from old catalog] · New York and London, G. P. Putnam's sons · leaf 346
rifle larger(nearly two per cent.) in winter than in summer, theEarth then, being about 3^ million miles nearer to it.It rotates on an axis inclined about 7J° from a per-pendicular to the plane of the ecliptic, in the same direc-tion as do the planets, making a rotation in about 251days. Not being… … Yerkes Observatory Plate XX. The Solar Disk (Showing calcium flocculi) The Sun 285 twenty-five days, it is approximately twenty-seven daysat midway between the equator and the poles. Besides,the sun has a motion in space, since, at a velocity ofthirteen miles a second, it is carrying the wholesolar…
Stars · Constellations · Planets
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