Mark,

Comet tails point away from the sun
My Guide 8 shows the comet tail trailing to the NE at an angle of 69
degrees. The angle from the comet to the sun is 240 degrees. 180 from
240 gives 60. This give the tail trailing 9 degrees off 180 degrees from
the suns direction.
Therefore, if the comet's position is correct, the tail orientation is
correct within reason.

Kevin Cooper.

Mark S Deprest wrote:

>Okay Folks,
>This one has me baffled. I belong to a number of other Yahoo Groups and
>recently on the Comet-Images Group both Mike Holloway and Rolando
>Ligustri posted images of comet C/2005 E2 McNaught with a tail
>orientation that is 180 degrees different from what Guide 8.0 shows.
>Mike Holloway is an avid Guide 8.0 user and his copy of Guide is
>showing the tail orientation 180 degrees off also. Now, is Guide wrong
>or is the comet wrong?
>
>Carpe Nocturne - Clear Skies & Dark Night
>Mark S Deprest
>Astronomical League
>University Lowbrow Astronomers
>Association of Lunar & Planetary Observers
>American Association of Amateur Astronomers
>A.L. Comet Observers Club Gold Award Recipient
>
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>To unsubscribe from this group, send an empty email to:
>guide-user-unsubscribe@egroups.com
>Yahoo! Groups Links
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