Isaac Roberts' Observatory

[2] This factor, coupled with his chronic bronchitis, which meant he needed a better climate for his health, motivated him to look for a new location suitable for his observations.

In 1885 he acquired copy of Observations upon the Topography and Climate of Crowborough Hill, Sussex by Charles L. Prince, describing and extolling the conditions of the area, precisely those he needed.

sold to Roberts part of his property, four acres (1.6 hectares), where he built his house including a domed observatory to accommodate his telescopes.

In his new house and observatory he continued his work—which earned him, among others awards, the Gold Medal of the Royal Astronomical Society of London—until his death in 1904.

[clarification needed] This way both telescopes had independent movement in declination whereas the clockwork mount, which maintained right ascension, was common for both.