Thursday, 14 May 2026

Cooke Telescope Tales - new telescope for Greenwich Observatory in 1888

 London Daily News Thursday 8th March 1888 


An Addition to Greenwich Observatory. 

FLAMSTEED’S famous institution on  Greenwich Hill has been crowned with another dome. Nine or ten years ago Professor GREENE  of the Polytechnic  Institute at Troy, desiring to construct a dome on a somewhat larger scale than usual, found  that the heavy metal roof ordinarily set up would require a more substantial  structure  than he co could conveniently provide, and that powerful of machinery would be necessary for making it revolve. He determined to try what could be re done with papier mache. The experiment was a complete success. His dome proved as strong as though constructed of wood and iron, and so light that it could be turned without machinery  of any kind. 

Greenwich shortly after had  occasion to construct, a dome, and very wisely adopted the new material.  The one just now completed is the second constructed during Mr. CHRISTIE'S regime. It is eighteen feet in  diameter, and is designed for the Cooke  6-inch  equatorial telescope, with a photo-heliograph  tube attached to the same mount.  This combined instrument is to be carried on a huge as block of stone weighing 3 tons, and will stand at a sufficient elevation above the other  buildings and the surrounding trees to command a complete view of the sun throughout in the day. 

 This is what Greenwich has been unable to do hitherto, and in his last report to the Board of Visitors the ASTRONOMER ROYAL draws attention to the difficulty under which  the work of the photo-heliograph has been n carried on in past years owing to the want of  such an observatory as he has now succeeded in  setting up, though as yet unfortunately the funds for the complete equipment of the new al building are not forthcoming. It has been hinted, by those who certainly are in a  position to be well informed, that unless somewhat greater liberality be extended  to the Observatory it may become necessary to discontinue the time signals, upon which the country has come to rely almost  as implicitly as on the rising and setting of the sun. 

 It would certainly be a novel sensation for the public to find their supply of Greenwich time cut off, after the manner of the water companies when they cannot get their money. This is certainly rather a formidable screw  Mr. CHRISTIE has at command, though it is to be hoped he may not have occasion to apply it to  the Treasury. There is no doubt, however, that to stint funds at Greenwich Observatory is very  poor policy. Its practical utility in all sorts of ways is simply incalculable. 

 We may add to what has been stated about the new building, that it is here that Greenwich will take its a share in the projected complete photographic  map of the starry heavens.


                                                       www.theramblingastronomer.co.uk


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