On the origin of comets /

Eitemau Tebyg

• Elements of the orbit of the comet of 1811
  gan: Bowditch, Nathaniel, 1773-1838
  Cyhoeddwyd: (1812)
• Two lectures on comets, read in the chapel of Harvard College, in Cambridge, New England, in April 1759. On occasion of the comet which appear'd that month. With an appendix, concerning the revolutions of that comet, and of some others
  gan: Winthrop, John, 1714-1779
  Cyhoeddwyd: (1759)
• An essay on comets, in two parts. Part I. Containing an attempt to explain the phænomena of the tails of comets, and to account for their perpetual opposition to the sun, upon philosophical principles. Part II. Pointing out some important ends for which these tails were probably designed: wherein it is shewn, that, in consequence of these curious appendages, comets may by inhabited worlds, and even comfortable habitations; not withstanding the vast excentricities of their orbits. The whole interspersed with observations and reflections on the sun and primary planets
  gan: Oliver, A. (Andrew), 1731-1799
  Cyhoeddwyd: (1772)
• The structure of the nuclei of comets as evidenced by their light curves
  gan: Kamél, Lars
  Cyhoeddwyd: (1991)
• Evolution of Jupiter family comets
  gan: Tancredi, Gonzalo
  Cyhoeddwyd: (1993)