Yes, the buttom above the word Meade indicates the marker position. For a
Fork mount the orientation angle is independent of where you are pointing
the telescope. For an equatorial mount it is independent if you stay on the
same side of the mount. It changes by 180 degrees if you go the other side.

I am not familiar with the 'focus lock' or where it is. However, for one
side of the meridian this is correct and for the other it is 180 degrees off
(see the prior paragraph).

I am afraid I am not familiar enough with the LXD mount to answer other
questions. The intend of this angle is to provide the software with an
indication of the direction of North on the chip. You do not need to be
perfect, but the closer the better.

If you can imagine a line from the center of the back of the pictor pointing
at the north star. You then estimate the angle between that line and a line
from the center of the back of the Pictor through the button on the back.

While it may sound complicated (and perhaps the words can be improved with a
diagram), simply trying to autocenter star and noting if the object gets
closer as you change the angle will help get you setup.

If you get it understood, perhaps you could provide a writeup that could be
used to clarify the words in the readme file? I would suggest sharing it
here on MAPUG.

By the way, you can change the estimate angle at any time and the change is
used for the next centering or mosaicing command.

Ralph Pass

M. Gartland wrote:

> Help!
>
> Can someone please help me in clarifying the alignment for the 216xt
> when guiding? The new 6.4 final version has you put in an angle for
> computer guiding but it is very poorly written. Here are some
> questions....It says that the writing on the camera represents the
> orientation, is the button considered up (0 degrees)? If the button is
> up, what angle am I measuring to? My scope is on a LXD Eq. mount, does
> it matter what my scope is pointing at?
>
> Are we really talking about how my OTA is mounted in the cradle? In
> other words......if my cradle is the orientation, then north would be
> "straight up" in the cradle, and..if the OTA is mounted with the focus
> lock as "straight up" in the cradle, and....the 216XT is mounted with
> the button in line with the focus lock ,....then.....the angle to be
> entered in pictor view in the field on view menu screen for pictor
> orientation would be "0 degrees". If the button is to the "left" or at
> the 9 o'clock position in relation to the OTA focus lock, then the angle
> would be 90 degrees, if right, then 270 degrees, etc. etc.?
> Am I correct with this? Way off base? Please put all of this into
> english for me?
>
> Confused....
> m.

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