Heavens Above:
章节目录
共 19 段- 15. _The Meridian Circle._--The right ascension and declinat
- Atmospheric refraction displaces all the heavenly bodies fro
- 56. _Size of the Earth._--The size of the earth is ascertain
- 79. _Length of the Solar Day._--The solar day is a little lo
- This is a pure illusion, as we become convinced when we meas
- It might seem, that, since the moon rotates on her axis in a
- 127. _Phases of an Inferior Planet._--An inferior planet, wh
- 143. _The Sun Composed mainly of Gas._--It is now generally
- 166. _Change of Pitch caused by Motion of Sounding Body._--W
- 184. _The Rotation of the Sun._--The spots are evidently car
- Meanwhile the little thunder-head had grown and developed in
- 226. _Distance of Venus from the Earth._--The distance of Ve
- 256. _Jupiter's Four Moons._--Jupiter is accompanied by four
- 281. _The Observed Planet not the Predicted One._--Professor
- 301. _Donati's Comet._--The great comet of 1858, known as _D
- 319. _The General Appearance of the Zodiacal Light._--The ph
- 343. _The Pleiades._--The _Pleiades_ constitute a celebrated
- Lockyer holds that these differences of spectra are due simp
- 393. _Proctor's View._--According to Proctor, the Milky-Way