House Documents Volume 3; V. 80

House Documents Volume 3; V. 80

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856 edition. Excerpt: ... the Stronger Light was very bright, and extending up to Spica, though dimmer at its upper end; at 5" 5'" it had sunk to a Librze, and had become greatly dimmed; had about half its former brightness. At 5" 7"' it seemed to have ascended about 9, and to have brightened some; at 5" 12'" it was down to 38.Librze, and had dimmed; it perhaps rose a little again, but of this I was not certain. At 5" 19'" it was down to /3 and 6 Seorpionis, and had spread to the northward; it was now bright; at 5" 23"' the light broke bounds, and dawn had come.-' These risings and sinkings, and changes of intensity, are as they appear to me to be; but the upper limit of this Stronger Light is so indefinite, and the changes are of such an indefinite character, that I wish to speak of them somewhat doubtingly. Of the first sudden sinking and loss of intensity, I think, however, there may be no doubt. ' The morning was remarkably favorable for observations; atmosphere clear, sky very bright, and very little haze on the horizon. In September 2d, and October 4th, of last year, are notices of an increase of the Zodiacal Light after the first dimming. I remember noticing, not unfrequently last year, an apparent ascent of the Stronger Light after its sud den subsidence, and also, with this, an increase of light; but there seemed to be more uncertainty attending its character, and I believe I have neglected to take note of it. Moon did not set till almost 4 o'clock. At 4" got boundaries; and also at 5," as in chart. After 5," was carefully on the watch to see if there would be any pulsations. Morning very clear. Atmosphere transparent; every thing favorable for good observations....show more

Product details

  • Paperback | 60 pages
  • 189 x 246 x 3mm | 127g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236744012
  • 9781236744012