Two On A Big Ocean The Story of the First Circumnavigation
of the Pacific Basin
in a Small Sailing Ship

      

Other Books by
Hal Roth
| Home | Mailing Lists | Bookstore | Weather | Tide Predictions | Bowditch |

venus

From: Michael Dorl (no email)
Date: Sat Oct 09 2004 - 08:51:16 EDT

  • Next message: Jim Thompson: "Re: venus"

    As I was sitting in the hot tub this AM watching the spectacular heavens
    with the moon and venus about 15 degrees apart, it occurred to me to wonder
    about lunar distance measurements using venus. I've never tried to measure
    any lunar distances but I went ahead anyway. My results were consistently
    about 5 to 7 minutes lower than predicted by a program I wrote that uses
    the Mosier JPL AA routines. I wonder if this is some fault in my measurements,
    calculations, or the AA routines.

    I'd really appreciate it if someone could independently work out the moon
    venus distance for

    89.50 west 42.85 north
    altitude 290 meters
    temperature 5 degrees C
    tick.usno.navy.mil time 6-13-06 CDT 11-13-06 Greenwich

    I assumed a 15 minute moon semi-diameter.

    Maybe send the results to the list so everyone knows when to stop.

    Thanks in advance

  • Next message: Jim Thompson: "Re: venus"



    | Home | Mailing Lists | Bookstore | Weather | Tide Predictions | Bowditch | Trawlerworld |