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[APML]: Re: st-4 report-lx 200
Many thanks to all with suggestions for my questions about the st-4 and
my
lx200
over the last month. My last round of photos were mostly well-guided. Let
me take
a minute to report what I did which got me straightened out. I guide
off-axis with a GEG.
1) started using a screw-in focal reducer which took my guiding FL from
2800mm to 1100mm.
2) incresaed my Ca1 time from 3 or 4 to 7; and my Ca2 time from 4 & 5 to
9.
3) made very careful tweaks with my focusing to insure I had the highest
br readings.
Now one more question:
I am getting over-corrections in RA during guiding; that is, my RA
correction readouts
run along the order of something like this: 4, -6, 5, 0, -E, 3, -3,
5,-2,
3, -6....pretty much back and forth.
Do I need to turn down the Ca1 setting a notch or two, or is it something
else? My PEC is in good shape.
Thanks again,
Bobby Midleton
astropics at: http://www.webwide.net/~bobbym/astro1.htm