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bmpbmp
2004-Jun-07, 10:30 AM
Does anyone know the start and finish of the transit time for the eastern side.I am in Montreal Canada

Tranquility
2004-Jun-07, 11:11 AM
Here is a table from NASA for world cities:

http://sunearth.gsfc.nasa.gov/eclipse/transit/venus/city04-1.html

And this is for American cities:

http://sunearth.gsfc.nasa.gov/eclipse/transit/venus/city04-2.html

The time is Universal time (GMT).

bmpbmp
2004-Jun-07, 11:49 AM
Thanks Tranqility but how do you read that thing...Sorry

Tranquility
2004-Jun-07, 11:59 AM
This is Space.com's explanation of the table:

"The event is discussed in Universal Time and must be adjusted for local timekeeping. (Example: 11:05 UTC minus 4 hours equals 7:05 EDT). The times are listed in hours:minutes:seconds format (example: 11:05:54). The table shows two ingress times (when Venus touches the Sun's limb and then is fully in front of the Sun) and two egress times (when it begins and finishes leaving the disk). Alt=Altitude, in degrees above the horizon (10 degrees is about the width of your fist on an outstretched arm)."

This page (http://www.space.com/scienceastronomy/venus_transit_2004.html) is very helpful.

bmpbmp
2004-Jun-07, 12:03 PM
So 7:05 eastern is when it starts or finishes

Tranquility
2004-Jun-07, 12:15 PM
Its when you can start seeing it in Montreal. For you it lasts around 20 mins.

bmpbmp
2004-Jun-07, 12:40 PM
20 min so that means its finishing at around 7:30

Tranquility
2004-Jun-07, 12:45 PM
7:25 EDT actually. Thats what it says in the table.

bmillsap
2004-Jun-07, 12:46 PM
Actually, 7:05 is when Venus starts to exit the solar disk. You can start observing it at sunrise. Venus will be entirely out of the disk at 7:25.

bmpbmp
2004-Jun-07, 12:46 PM
SO how long does the whole thing last

Tranquility
2004-Jun-07, 12:53 PM
At the place where it takes the longest time its a little after 5 am GMT to after 11 am GMT. So almost 6.5 hours.

ToSeek
2004-Jun-07, 01:45 PM
Here's (http://www.nightskymag.com/venus_transit.html) a table that's easier to read.

Basically for you it will be:

5:06 am - Sun rises with transit in progress
7:05 am - Venus starts to exit Sun's disk
7:25 am - Venus finishes exiting Sun's disk

Set your alarm early!