Egypt, Halley's comet and a Cooke

 

On January 24^th, 25^th, 27^th and 28^th 1910 Halley’s Comet was photographed by Mr Knox-Shaw at the Helwan observatory in Egypt using a 4 inch Thomas Cooke & Sons telescope. The photographs showed the twin tails and southerly secondary tail.

The Cooke telescope was attached to a 30 inch reflector that had been purchased in 1902, the reflector was made by A A Common.