Re: A possible satellite observation?
Jim Stamm (nemo@flash.net)
Sat, 7 Aug 1999 19:23:23 -0700
I've also seen a few, and if memory serves correctly, there was
perceptible motion in under two minutes at less than 100 power with even
the first graze.
LWojack@aol.com wrote on 8/7/99 5:05 PM :
>In a message dated 8/3/99 10:32:50 PM Eastern Daylight Time,
>edcannonutaustin@netscape.net writes:
>
>> I've never observed a grazing occultation, but I sort of wonder if the star
>> was never actually occulted, how much it would move relative to the Moon
>in
>> 5
>> minutes. Mightn't the motion be imperceptible at least to some observers?
>
>I've seen a few. There is very little motion in 5 minutes. Unless you are
>using 600+ power (and have good resolution, something few amatuers have -
>with 600x, if they can achieve it), you will not detect motion for, at the
>very least, 5 minutes. Consider this: the moon moves at 30 arc-minutes per
>hour, or 30" per minute (2 and a half arc-minutes in five minutes). A
>scrutinizing observer theoretically could detect movement inside of 300
>seconds, but if the star was already an arc-minute or so off the moon's
>limb,
>movement would be much less visible.
>
>I believe that it is very possible that this was a star.
>
>Jonathan
>lwojack@aol.com
>
>