Half-Hours with the Telescope

Half-Hours with the Telescope

4.33 (6 ratings by Goodreads)
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"[...]eye-glass. The two forms of eye-piece most commonly employed are exhibited in figs. 5 and 6. Fig. 5 is Huyghens' eye-piece, called also the negative eye-piece, because a real image is formed behind the field-glass (the lens which lies nearest to the object-glass). Fig. 6 represents Ramsden's eye-piece, called also the positive eye-piece, because the real image formed by the object-glass lies in front of the field-glass. Figure 5 Fig. 5. Figure 6 Fig. 6.[...]."show more

Product details

  • Paperback | 82 pages
  • 152 x 229 x 4mm | 122g
  • Createspace
  • English
  • Illustrations, black and white
  • 1507673752
  • 9781507673751

Rating details

6 ratings
4.33 out of 5 stars
5 50% (3)
4 33% (2)
3 17% (1)
2 0% (0)
1 0% (0)
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