Sunday, 12 October 2025

A little ramble through 19th century astronomy - Eclipse of Sun observed in America in 1878

 Academy Newspaper Saturday August 17th 1878 

 

The observers of the total eclipse of the sun on July 29, in America, have been very much favoured by the weather, and the observations, telescopic, spectroscopic, polariscopic, and photographic, seem to have highly successful. The corona appeared small, but of great brightness, and photographs of it and of its spectrum were obtained. Several long rays were seen, perhaps even the zodiacal light, at a distance of six degrees from the sun. The few prominences visible appeared insignificant and dim; the chromosphere rather low. It is sufficient at present to know of the observers’ good fortune and to await their full reports.

 In the instructions issued by the Washington Observatory for observing the eclipse, the importance is pointed out of renewing during the totality the search for an intra-Mercurial planet or planets, and a map is given showing all the stars to the seventh magnitude in a space extending over 32° in right ascension, and 15° in declination, with the sun in or near the centre. Of the observers on the look-out only one, Prof. Watson, the experienced discoverer of so many small planets, is reported to have succeeded in seeing a hitherto unknown star in right ascension 8" 26™ and declination 18° 0’ or a little over two degrees distant from the sun, and less than a degree from the place of the star theta  Cancri given in the map.

The news has been telegraphed to London, Paris, and Berlin; but, oddly enough, the telegram in one, or more than one, instance, purports to have been sent by the late secretary of the Smithsonian Institution, Joseph Henry, who died in May last.



                                                     www.theramblingastronomer.co.uk 

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