Re: Stopping down the I-band camera

[Ron Wickersham <rjw@alembic.com>]

On Tue, 19 Apr 2005, Tom Droege wrote:

> My current problem is getting some "good" nights.  At the moment all data
> has had a very high sky brightness.  I seem to recall that that is typical
> of this time of year here.  When we go out at night to see meteors all we
> see is skuz even though the weather forcast is "clear".  Can anyone
> comment on this?

hi Tom,

wonder if you remember the Dark Sky Clock which tries to predict astronomical
conditions rather than the "weather" forcast.

http://www.cleardarksky.com/c/TASSHILkey.html?1

on the west coast it has proven very consistent with actual condition and
the weather forcast is almost useless because of ocean proximity.   on the
other hand it doesn't know about city lights but i wonder if the cloud and
"transparancy" ratings would be accurate at your location.

-ron