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From: Alexandre Eremenko (no email)
Date: Wed Apr 20 2005 - 21:40:55 EDT
Bill,
> I have two observations:
> 1. It seems the SNO-T is a high-quality instrument.
> If I recall, the specs
> are plus/minus 10 seconds error along the arc (0.17').
> Unless you got a
> dud, any value higher than 0.2' is highly suspect.
Yes, I afraid it is a dud.
> 2. Are you using the same star pairs when you get the 0.5', 0.6',
> and 0.8'
> values?
I don't understand the question.
On the same pair of stars the measurement are consistent.
Stand dev is about 0.2'
But you cannot measure substantially
different distances with a same pair of stars.
> Think we need to get together in a
> more controlled setting with fresh eyes
> and do some comparisons,
Sure. I agree that more observations are necessary
to develop a reliable table.
So far it seems that only the very fact that such table
is necessary is established.
A
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