Re: [ATM] Gluing this mirror

["Arjan te Marvelde" <arjan.te.marvelde@hetnet.nl>]

Tom,

> Also, if observing near the horizon...his airmass is higher than 2 or 3.
> His seeing will not be very good down there unless he's at a world class
> site.

Note that IF you have cell induced deformation (i.e. the cell element torque
is high compared to the mirror stiffness), the effect will be 50% of its
worst already at 60deg elevation (or: it is proportional to the cosine of
the elevation angle).

Arjan te Marvelde

_______________________________________________
ATM mailing list http://www.atmlist.net/