Thanks for your research..It appears to me that these examples may
have been taken sometime prior to twilight,which would add to difficulty,
I think..On the other hand we don't know how much pp these have..
Followed your suggestion re: ck local newspaper for moon rise time and ended
up with a online moon/sun rise calender..After considering the time window
problem there are at least two primary considerations: 1. Twilight, which
depends on sunset. 2. Moon rise, at a time which allows it to rise into area
of aircraft flight path during twilight..This was about 2 1/2 hours on 7/14 when
my photos were taken..Since sunset time is constantly changing, I looked for
windows where the time between sunset and moon rise was approximately
2 1/2 hours and found a window each month starting Aug.12. This assumes
that the time for moon to rise into flight path remains at approx. 2 1/2 hrs..
My gut feel says this isn't true..Does the moon move across the sky at the
same speed each month?? I doubt it..Thats probably the next problem...
Thank goodness the flight path doesn't vary very much, AND, there's an
aircraft coming by every 3-10 minutes...Which will give me several chances
during each window...
Another question..How long does twilight last each month??
This may be boring everyone else, so I"ll drop it for now...
Any help for you astronomers would be appreciated..
Thanks again 9NAME, take care....