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» Online Classroom   »   » Public Discussion of Cel Nav   » Can I have some current dated problems to solve

   
Author Topic: Can I have some current dated problems to solve
KenO


 - posted July 08, 2007 05:56 PM      Profile for KenO           Edit/Delete Post 
Hello

Now that I have my Almanac I would like to work some problems with it (2007. Can you give me some problems to solve?
Sun sight to determine a zn DR lat and lon. A running fix. A planet and star(s) sight and pure 3 star sight.

I have tries to make up my own problems with current dates but find the complexity to difficult.

Thanks
Ken

From: Southern Oregon
David Burch


 - posted July 09, 2007 12:48 PM      Profile for David Burch           Edit/Delete Post 
OK we can do that. Please use your star finder or any other way you have learned to choose the best 3 stars for any date this year (evening or morning twilight) and for any ocean DR location. then tell us these, and we will give you the data for a fix as if you took the sights.
From: Starpath, Seattle, WA
KenO


 - posted July 10, 2007 09:37 AM      Profile for KenO           Edit/Delete Post 
Here goes

DR Lon 122 47.6' West
DR lat 42 10.4' North

Evening twilight sight July 10, 2007

Stars to be used:
Regulus
Vega
Anteres

Does this make sense?

Ken

From: Southern Oregon
David Burch


 - posted July 10, 2007 10:11 AM      Profile for David Burch           Edit/Delete Post 
Try this:

sight time 04 30 10 UTC, HE = 0, IC = 0

Antares Hs = 20° 2.2'
Regulus Hs = 15° 12.0'
Vega Hs = 54° 40.7'

and see how close your DR was.

From: Starpath, Seattle, WA
KenO


 - posted July 10, 2007 02:11 PM      Profile for KenO           Edit/Delete Post 
Thanks a lot

Ken

From: Southern Oregon


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