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Hi Brad,

Wonderful ! It is completely useable as far as I checked it.

A couple of small tweaks still needed:

1) In Southern Star Base, LHA=1 is displaying as LHA=361. It is
counting up 359, 360, 361, 2, 3, 4. The N. Star Base is OK.

2) The Sun is still at the VE on March 19 (Day of year=78) instead of
March 20 (Day 79). Moving the sun out of the way and looking very
close, I detect that the ecliptic is not intersecting the equator
exactly at the LHA=0 (VE). In Northern Star Base view the intersection
is just left of the VE about one degree. Try this: Set Northern Star
Base, set LHA=0, set star rotation to zero (slider to left). Now move
the sun away from the VE so that it doesn't cover up the equator/
ecliptic intersection. Set latitude to 35 D N so it doesn't interfere
with the view of the intersection either. Now grab the lower right
corner of the graph and stretch it further down and right to increase
the size (I also took a screen shot and blew it up large to see this
up close). If you look close, you can see that the ecliptic intersects
the equator to the left of LHA=0. It should intersect exactly at
LHA=0. So I think that you may have the position of the sun on the
ecliptic correct, but that you need to re-orient the actual ecliptic
itself 1 degree clockwise with respect to the stars (when viewing in
N. Star Base). If the sun moves along with the ecliptic when you do
this, then the sun should be in the right place on day of year=79.

3) Right now I am counting the altitude and azimuth lines, which is
not too much trouble (actually it is good practice in counting by
tens, which I haven done much of since the first grade; glad I haven't
forgotten how!), but some numbers on the blue template would be
welcome.

4) If you can manage it, would love to see the red template (with
numbers, if possible) , and ON/OFF buttons for both templates, so the
user can select to display either or both together. The red template
should look a lot like the blue template at the 90 degrees latitude
view, except that it extends beyond the equator to cover the whole
Star Base (to the "outer limits" as you described earlier), so
shouldn't be too big a challenge considering what you've done so far.
Since we can't plot a planet on the graph with the mouse (or so I
surmise, with Excel's limitations), this would be mainly for teaching
the 2102-D I think, and for the sake of completeness in replicating
the 2102-D.

Any other input from Navlist?

Regards,
John
Tokyo, Japan
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