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[aprssig] [amsat-bb] Transit of Venus event 5/6 June

Bob Bruninga bruninga at usna.edu
Tue Jun 5 09:11:34 UTC 2012


Re Transit of Venus:

> Do I have my math right?  Your website says that
> the transit starts around 05:13z, which is around
> 10:13pm local time out here on the West Coast (UTC
> -7).  How can that be, if according to the map, the
> transit will still be in progress 5hrs later at
> Sunset?

I did a quick look at my site, and do not see the reference to 0513z.  Please let me know where the mistake is.

I am in japan and cannot fix it anyway.  But I do know that it begins at about 6 PM EDT on the 5th of June on the east coast.

GOod luck!
Bob, WB4APR
>
>   What am I doing wrong?
>
>   Greg  KO6TH
>
>   On Mon, Jun 4, 2012 at 4:10 PM, Bob Bruninga
>   <bruninga at usna.edu> wrote:
>
>     Transit of Venus Special Event, 5/6 June 2012:
>
>     For the 7th time in Human history and last time
>     this century, Venus will pass in front of the sun
>     on 6 June 2012.  We are encouraging hams to join
>     up with astronomers and observers in public places
>     to share in this event.  It is observable
>     worldwide except the center of the Atlantic
>     (eastern S.America and western Africa)
>      Everywhere else can see parts of it.  It lasts
>     5+ hours and is fully visible around the Pacific
>     Rim. In the Usa it is late afternoon on the 5th
>     towards sunset.
>
>     All previous centuries were before the discovery
>     of radio and so sailing ships were dispatched
>     around the globe to time the event.  From these
>     times, the size of the Solar System could be
>     calculated.  It took months if not years to get
>     the data back.  Now we can do it in 0.05 seconds
>     with Ham radio.
>
>     See if you can contact hams at other Transit of
>     Venus sites from your public observing site.
>      Here are the suggested calling frequencies.  We
>     don't want contest-style pileups nor home
>     stations.  We just want a place where similar
>     public setups can contact like minded other public
>     viewing sites via ham radio and make their
>     reports.
>
>     See the web page:
>      http://aprs.org/VenusTransit2012.html
>
>     We are suggesting these calling frequencies:
>
>     40 Meters -  7180 KHz
>     20 Meters - 14240 KHz
>     17 Meters - 18140 KHz
>     15 Meters - 21240 KHz
>     12 Meters - 24940 KHz
>     10 Meters - 28340 KHz
>
>     VHF - Join the global APRS message reflector "CQ
>     VENUS" to exchange live APRS messages with all
>     other participants.  To do this, send APRS msg to
>     CQSRVR with the first words of your message CQ
>     VENUS ... and your text.  You can send up to one
>     messae each 30 minutes.  For details, see the web
>     page.
>
>     *** TAKE ALL IMPORTANT SAFETY PRECAUTIONS WHEN
>     VIEWING THE SUN!!! *** Google for Techniques.
>
>     Bob Bruninga, WB4APR (will be observing in Japan
>     with a Japanese callsign JH1IBN-7 from Kyoto.
>
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