----- Original Message ----

> From: Robert Vanderbei <[email protected]>
> 
> I'm not sure I understand your questions.  
> ... 
> More comments below...
> 
> On Jul 21, 2010, at 11:57  AM, luzius.thuerlemann wrote:
> 
> > Ok, here my  problems:
> > 1. when I want to see if there are other coordinate data in  the 
> > information 
>board for the moon in Alt-Az and Ra-Dec, and let the software  search for the 
>moon in the toolbar, the coordinates are centered +00°00' and  24h00m00,0s (in 
>polar projection). But the moon is on the other end of the sky.  How to fix 
>this.
> >

> I'm not sure what you mean by "the coordinates are centered +00°00'  and 
>24h00m00,0s (in polar
> projection)".   I guess you mean that you are in  Alt/Az mode looking 
> straight 
>up, right?

No, 0 deg 24h would be a point on the celestial equator.

But I'm having a hard time understanding his questions, too.


> > 2. on the 21. July 2010 at 00:15.00 the moon completely  disappeared below 
>the south-western mountain-horizon. When I simulate this time  then the moon 
>in 
>Alt-Az-projection (because in polar alignment I can't see the  mathematical 
>horizon) is already displayed below the mathematical horizon. What  is wrong 
>here?
> 

I don't understand- you said the moon was below the horizon at 00:15:00, so 
what's the problem?

In v2.7x, you can make the ground semi-transparent.  See the "chart appearance" 
settings. 

 
> > The difficulty is  that I can't imagine to create a proper local horizon 
> > with 
>these obstacles - I  mean, one evening the moon rises above a mountain and on 
>the following night the  moon rises above the same horizon but is displayed 
>much 
>below or above the  already created horizon line from the previous night.
> 

Uh, sure.  The moon rises at a different time each night.

-John


      

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