To sum up briefly the history of the development of the heliometer. |
But there is one instrument of great value, the heliometer, which is not used at Greenwich. |
After the expedition the heliometer was donated to the Observatory who built a tower for it. |
On an entirely different plan is a survey just concluded by Chase with the Yale heliometer. |
He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars. |
In 1888 89 he carried out, with the cooperation of many astronomers, a program of intensive observation of selected minor planets with the heliometer. |