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Landmarks in the History of Science » Physics-Astronomy » Observations of the Spots on the Sun... Made at Redhill. 1st Edition, 1863 [The Differential Rotation of the Sun]

Observations of the Spots on the Sun... Made at Redhill. 1st Edition, 1863 [The Differential Rotation of the Sun]

Autor: Richard Christopher Carrington 
Cod: 9246
In stoc: Da

Detalii produs

We are thrilled to have in stock a very rare book, 1st Edition, 1863: Observations of the Spots on the Sun... Made at Redhill by Richard Christopher Carrington.


R. C. Carrington (1826-1875) was a British amateur astronomer who had a tragic destiny.


After thousands of direct observations (carried out over more than seven years) on sunspots, Carrington discovered the differential rotation of the Sun. This involves an extraordinary discovery: that the Sun is, in fact, a gazeous celestial body.


''The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots [Carrington, 1863]. The Sun's rotation axis is tilted by about 7.25 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.

Since the Sun is a ball of gas/plasma, it does not have to rotate rigidly like the solid planets and moons do. In fact, the Sun's equatorial regions rotate faster (taking only about 24 days) than the polar regions (which rotate once in more than 30 days). The source of this 'differential rotation' is an area of current research in solar astronomy.''


                                 Holly Zell, NASA, 2017


It is worth to note that this fantastic copy, miraculously escaped undamaged from two major fires, in 1898:, and 2020: 




Williams & Norgate, London, 1863. Hardcover. Condition: Very Good. First Edition. Bound in half brown leather with marbled boards and gilt titles to spine, this ex-Norwich Library has bookplate to fixed front endpaper, and small label to front board, but otherwise without library marks. Minor faults but for date VG. [11] 248 pp. + 166 Full-page plates. Front board is partially detached, spine is slightly rubbed with tiny section (3cm x 1cm) where surface leather is missing. Both front and rear endpapers are lightly foxed. Corners slightly rubbed and worn, otherwise VG. Size: 4to - over 9¾" - 12".


The decrease of solar activity today (Cycle 25), suggests that the Sun is on its way towards the Maunder Minimum of activity - as well as in the period from 1645 to 1715 - namely, we enter into another Little Ice Age. See: (A brilliant article by Cliff Ollier about 'Global Warming')




Price: USD 900,000.00