Canada/USA Astronomical Seeing Observation Program

Astronomical-Seeing Observation Details

1. Observer
William McLaughlin
2. Site
N44.31 W120.75 (N4418' W12044')
3. Scope
14 inch F/9.0 Mirror. Open top. Closed bottom. Fan cooled: Yes.
4. Time
2003-06-02 08:00:00 GMT
5. Observing Conditions
300X. 65.0 up. Was cooling for 4h00m.
Appearance of out-of-focus star: --not observed--
6. Seeing Observation
Antoniadi III (3 out of 5)
8. CommentsIt is hard to fill out with the system above as it is designed for visual work. I can only say that I measured the FWHM of stars in my images at 2.0-2.3 arcsec on long guided exposures. This is good to average seeing for this location. Magnification entered only so system will accept entry - it is largely irrelevant for CCD
Date Entered2003-06-03 17:55:07 UT

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