The mechanics of the moon : dedicated to the astronomers and astrophysicists . FIG. 18 the Avell-known dark rosette is entirely miss-ing. The diiference in this striking appear-ance results in the first place from the differ- CONCERNING THE TOPOGRAPHY OF THE MOON. 59 ence of time. Most of the known ray-systems originated after the deluge, other-wise they wouhl have l)een destroyed like. FIG. ID a portion of the inferior ray-system of thePahis, which was inundated hy an after-dehige. This is hest seen, as a mysterious 60 CONCERNING THE TOPOGRAPHY OF THE MOON. appearance, on the photochrome, als
The mechanics of the moon : dedicated to the astronomers and astrophysicists . FIG. 18 the Avell-known dark rosette is entirely miss-ing. The diiference in this striking appear-ance results in the first place from the differ- CONCERNING THE TOPOGRAPHY OF THE MOON. 59 ence of time. Most of the known ray-systems originated after the deluge, other-wise they wouhl have l)een destroyed like. FIG. ID a portion of the inferior ray-system of thePahis, which was inundated hy an after-dehige. This is hest seen, as a mysterious 60 CONCERNING THE TOPOGRAPHY OF THE MOON. appearance, on the photochrome, also on eachmoon-atlas. The magma, with exception ofthe Tvchora^^s, was more liquid and conse-quently more flexible, so that the masseswere thrown in all directions, even upwards,in consequence of the gases escaping withthe rays, therefore could not possibly formdark rosettes as on the Tycho. The wild-ness of this stormy proceeding can easily berecognised by comparing it with the otherray-systems. The magma was stiffer andmore consistent at the later out-break ofthe Tycho, whereby the throwing distancewas enlarged, but in consequence of thecohesion vertical magma ruptures and there-fore the flooding of the outer-walls wereimpossil)le, thus causing the hollowing out ofthe uncovered dark T^^ho-rosette. Fig. 20. As already remarked the ruinedcondition of the South- and Xorthpole-count
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcelestialmechanics
