Earthshine blog

Earthshine blog

"Earthshine blog"

A blog about a system to determine terrestrial albedo by earthshine observations. Feasible thanks to sheer determination.

JD2455988

Observing logPosted by Peter Thejll Mar 02, 2012 08:15AM
Trying to observe Moon. Many thin clouds, but it may clear up later and then we will not waste time on setup. T=7.4 C. RH near 40%, varying.

Shutter works irregularly at first, then regularly - as if it has some dirt or oil in it that needs to be rubbed around until it is warm? Now and then there is 'dragging' but, as always, mainly in one filter - when a new filter is chosen the dragging may go away, or reappear in another filter.

Dome needed a fresh 'find home' - wonder why? I left it in a working condition? Dome now follows telescope.

Moon in frame but not well centred. Why? It is just a few days since I calibrated the mount on a target in the same part of the sky? 'Slow creep' of alignment seems to be a feature of this system.

More clouds now. Shutting down. Need a cloud sensor up and running!


  • Comments(0)//earthshine.thejll.com/#post159