Yes...that is the actual sky direction of motion as measured from NORTH toward
EAST, north being "0" and due east being "90" degrees, etc. West is 270 degrees
and south is 180......
So this means that in the case of 4179 Toutatis, for example, the PA (position
angle) is moving in a direction of 63 degrees, or a little ENE relative to the
background stars.

Dr. Clay
_____
Arkansas Sky Observatories
MPC H45 - Petit Jean Mountain South
MPC H41 - Petit Jean Mountain
MPC H43 - Conway West
http://www.arksky.org/

----- Original Message -----
From: "tom" <loeblt@...>
To: <guide-user@yahoogroups.com>
Sent: Thursday, December 13, 2012 11:31 AM
Subject: Re: [guide-user] Position Angle


>I am seeing it when I right-click on an asteroid and choose more
> info....just after the apparent speed of the object.
>
> Tom
>
> On 12/13/2012 12:27 PM, P. Clay Sherrod wrote:
>> Where are you seeing Position Angle noted for the asteroids?
>> It can apply to direction of motion, or its position relative to another
>> nearby
>> object, OR the suspected position of a secondary "moon" object locked
>> gravitationally to the main minor planet.
>> For comets, it typically is in reference to the angle of the tail as measured
>> from the center of the coma.
>>
>> Dr. Clay
>> _____
>> Arkansas Sky Observatories
>> MPC H45 - Petit Jean Mountain South
>> MPC H41 - Petit Jean Mountain
>> MPC H43 - Conway West
>> http://www.arksky.org/
>>
>> ----- Original Message -----
>> From: "tom" <loeblt@...>
>> To: <guide-user@yahoogroups.com>
>> Sent: Thursday, December 13, 2012 11:21 AM
>> Subject: [guide-user] Position Angle
>>
>>
>>> Could someone explain the meaning of position angle as it relates to
>>> asteroids in Guide 9?
>>>
>>> Thanks,
>>>
>>> Tom
>>>
>>>
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>>
>>
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>
>
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