Kosmos III
Udkast til en physisk Verdensbeskrivelse

BWsea^W:- 86 Linson og Sir James South opløste Taager gives. ,,Dr. Robinson could not leave this part of his subject without calling attention to the fact, that no real nebula seemed to exist among so many of these objects chosen without any bias: all appeared to be cluslers of stars, and every additional one which shall be resolved will be an additional argument against the existence of any such.“ Schumacher Astr. Nachr. No. 536. — 3 Notice sur les grands Telescopes de Lord Oxman town, anjourd’hui Earl of Rosse (Bibliothé- que universelle de Genéve T. LVII. 1845 p. 34’2-357) hedder det, „Sir James South rappelle que jamais il n’a vu de representations sidéiales aussi magnifiqiics que celles que Ini 0(Trait I’instrument de Parsonstown : qu’une bonne parlie des nébuleuses se présentaicnl comme des amas ou groupes d'étoiles, tandis que qnelques autres, å ses yeux du meins, n’offraient aucune apparence de resolution en éloiles.“ 28 (S. 212.) Report of the fifteenth Meeting of the British Association, held at Cambridge in June 1845, p. XXXVI og Out- lines of A s t r. p. 597 og 598. ,,By far the major part“ siger Sir John Herschel, probably al least nine tenths of the nebulous con- tents of the heavens consist of nebulae of spherical or elliptical forms, presenting every vaiiety of elongation and central condensation. Of these a great number have been resolved into distant stars (by the Reflector of the Earl of Rosse), and a vast multitude more have been found to present that motlled appearance, which renders it almost a matter of certainty that an increase of optical power would show them to be similarly composed. A not unnatural or unfair induction would therefore seem to be, Ihat those vhich resist such resolution, do so only in consequence of the smallness and closeness of the stars of which they concist: that, in short, they arc only optically and not phy- sically nebulous. — Although nebulae do exist which even in this po- werful telescope (of Lord Rosse) appear as nebulae, without any sign of resolution, it may very reasonably be doubted whether there be really any essential physical distinction between nebulae and clusters of stars.“ 27 (S- 213.) Dr. Nichol, Professor i Astronomie ved Universi- tetet i Glasgow, har bekendtgjort dette fra Castle Parsonstown daterede Brev i hans Thoughts of some important points relating to the System of the World 1846 p. 55: my promise of communicating to you the rcsull Orion, I think, I may safely say, that there can as to the resolvability of the Nebula. Since not a single night when, in absence of the moon, the air was fine enough to admit of out- using more than half the magnifying power the speculum bears: slill we could plainly see that all about the tra- „In accordance whilh of our examination of be little, if any doubt you left us, there was