Natures secrets. Or, the admirable and wonderfull history of the generation of meteors ... / By the industry and observations of Thomas Willsford.

  • Willsford, Thomas
Date:
1658
Catalogue details

Licence: Public Domain Mark

Credit: Natures secrets. Or, the admirable and wonderfull history of the generation of meteors ... / By the industry and observations of Thomas Willsford. Source: Wellcome Collection.

    32/236 (page 8)
    An Introdutkion f As 84 : rifing or apparition, fummon’d thofe extrava- f j gant,but fertile waves to retreat into their confi- i ned channels. Glot Hypothefes of Aftronomers , concerning the} heights avd magnitudes of the fixed Stars | ss , and alfo the Planets in their mean motions, hath : on with the diftance of the four Elements from | fog yy the Earth's centre. ez compos'd of Earth and Water, and that all the »| ©! Stars of the firft magnitude are 100. timesas great} 7! | | ] 4 * . : | the 4 ‘He Firmament or 8. Sphere (in which the fixed por _ Stars are placed) is aflirn’d by Aftromomers 7 i @ to be in diftance from the Worlds centre, the ti - . ' Earths diamecer 9327 times 5 from the Terreftial 7 .2 Globes fuverficies 18653. femi-diameters ; the | ‘i! : diftance from us in miles 65285500; the leaft Star | kg ia e in this Sphere is conceived greater than the Glebe J the | in relation to their Cubes. ie : a Under the tarry Firmament there are imagined Mil 7. peculiar Spheres involv’d within one anether, ma 7 on thefe the ancient Aftronomers did fancy little } 13 | a circles (called Epicycles ) whofe centres werein } | ia the fuperficies: of thofe Orbs, in whofe circum- 4} ba |= ferences they plac’d the centre of each Planet ©) ii Zz according to its proper Sphere, thereby tafolve |) x ia the irregular motion of each wandring: Stars Zz : in their various courfes, and.excentrick motions; |} isi Zz.) that point which is moft remote from the centre HM ‘a of the Earth is called Apozemsthe lowelt Perigeot, | ' the difference between them is termed the.mean 9 }) Gh ig motion, the Planet being then on: the fuperficies 7) | ia of his own Sphere. Saturn» +5) a f meng TS bes