Re: [Coronado_PST] PST for Transit of Mercury


Nov 2, 2006

 


----------------------------

#5156 Nov 2, 2006

Hi all,

I'm trying to see if anyone has done a drawing or diagram of what the

upcoming Transit of Mercury will look like when viewed through a PST. I

think Mercury enters at about 2 o'clock and exits at 9 o'clock but I just

wanted to be sure...

Thanks,

- Jay



----------------------------

#5157 Nov 2, 2006

Jay,

The location of Mercury as it transits will depend on your location. In the

western US, the transit will begin at 2012 UTC and end about 2206 UTC.

Locally here in Arizona, that would be at 12:12 pm to about 5:06. For

Central time zone, that would be 2:12 pm until 7:12 pm which will allow

those to see the transit during sunset. In California and the entire west

coast, the transit will be 11:12 am to 4:06 pm.



Here in northern Arizona, we will see the entire transit on the lower

portion of the Sun. I have a Schmidt-Cassegrain with a diagonal so will see

the transit enter from the right and exit on the left, but in my PST, I will

see it enter on the lower left and exit on the lower right.



Clear skies,



Dollar Bill Logan

Chief Astronomer

Robert Burnham Jr. Memorial Observatory

Located somewhere near Rattlesnake Gulch, St. Johns, Arizona

NexStar 11 GPS, CeleStar 8 and Orion StarShoot CCD camera



----- Original Message -----

From: "Jay Friedland" astro@...>

To: Coronado_PST@yahoogroups.com>

Sent: Thursday, November 02, 2006 8:02 AM

Subject: [Coronado_PST] PST for Transit of Mercury





> Hi all,

> I'm trying to see if anyone has done a drawing or diagram of what the

> upcoming Transit of Mercury will look like when viewed through a PST. I

> think Mercury enters at about 2 o'clock and exits at 9 o'clock but I just

> wanted to be sure...

> Thanks,

> - Jay

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>

>

> --

> No virus found in this incoming message.

> Checked by AVG Free Edition.

> Version: 7.5.428 / Virus Database: 268.13.13/500 - Release Date:

> 10/26/2006 12:45 PM

>

>



----------------------------

#5165 Nov 2, 2006

I've just uploaded a small jpeg file into the files section that shows the

path of Mercury across the Sun - you should get a separate notification. Note

that in transits, both Mercury and Venus move from East to West.



Dave Herald

Canberra, Australia



----- Original Message -----

From: "Jay Friedland" astro@...>

To: Coronado_PST@yahoogroups.com>

Sent: Friday, November 03, 2006 2:02 AM

Subject: [Coronado_PST] PST for Transit of Mercury





Hi all,

I'm trying to see if anyone has done a drawing or diagram of what the

upcoming Transit of Mercury will look like when viewed through a PST. I

think Mercury enters at about 2 o'clock and exits at 9 o'clock but I just

wanted to be sure...

Thanks,

- Jay









Yahoo! Groups Links



----------------------------

#5168 Nov 3, 2006

try this:



science.nasa.gov/headlines/y2006/20oct_transitofmercury.htm





Steven

--- In Coronado_PST@yahoogroups.com, Jay Friedland astro@...> wrote:

>

> Hi all,

> I'm trying to see if anyone has done a drawing or diagram of what the

> upcoming Transit of Mercury will look like when viewed through a PST.

I

> think Mercury enters at about 2 o'clock and exits at 9 o'clock but I

just

> wanted to be sure...

> Thanks,

> - Jay

>



----------------------------

#5172 Nov 3, 2006

Thanks Dave,



OK, now I'm confused and it has been raining for three days here in CA so I

can't just go check :-)



I'm sure that the sun is rotated 180 degrees in the PST, so I think that in

the PST we should look fro ingress (CI, CII) at 2 o'clock and egress at 9

o'clock. Or take your jpeg and rotate it 180 degrees.



I'd hate for everybody to be looking in the wrong place!



Thanks,

-Jay



on 11/2/06 5:09 PM, Dave Herald at drherald@... wrote:

> I've just uploaded a small jpeg file into the files section that shows the

> path of Mercury across the Sun - you should get a separate notification. Note

> that in transits, both Mercury and Venus move from East to West.

>

> Dave Herald

> Canberra, Australia

>

>

> ----- Original Message -----

> From: "Jay Friedland" astro@...>

> To: Coronado_PST@yahoogroups.com>

> Sent: Friday, November 03, 2006 2:02 AM

> Subject: [Coronado_PST] PST for Transit of Mercury

>

>

> Hi all,

> I'm trying to see if anyone has done a drawing or diagram of what the

> upcoming Transit of Mercury will look like when viewed through a PST. I

> think Mercury enters at about 2 o'clock and exits at 9 o'clock but I just

> wanted to be sure...

> Thanks,

> - Jay

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>

>







----------------------------

#5174 Nov 3, 2006

My understanding is that the PST uses a pentaprism to get the light out the

side (and to focus), and this involves an even number of reflections - so that

the image is not mirror reversed - just up-side-down.



Dave Herald

Canberra, Australia



----- Original Message -----

From: "Jay Friedland" astro@...>

To: Coronado_PST@yahoogroups.com>

Sent: Saturday, November 04, 2006 5:14 AM

Subject: Re: [Coronado_PST] PST for Transit of Mercury





Thanks Dave,



OK, now I'm confused and it has been raining for three days here in CA so I

can't just go check :-)



I'm sure that the sun is rotated 180 degrees in the PST, so I think that in

the PST we should look fro ingress (CI, CII) at 2 o'clock and egress at 9

o'clock. Or take your jpeg and rotate it 180 degrees.



I'd hate for everybody to be looking in the wrong place!



Thanks,

-Jay



on 11/2/06 5:09 PM, Dave Herald at drherald@... wrote:



> I've just uploaded a small jpeg file into the files section that shows the

> path of Mercury across the Sun - you should get a separate notification.

> Note

> that in transits, both Mercury and Venus move from East to West.

>

> Dave Herald

> Canberra, Australia

>

>

> ----- Original Message -----

> From: "Jay Friedland" astro@...>

> To: Coronado_PST@yahoogroups.com>

> Sent: Friday, November 03, 2006 2:02 AM

> Subject: [Coronado_PST] PST for Transit of Mercury

>

>

> Hi all,

> I'm trying to see if anyone has done a drawing or diagram of what the

> upcoming Transit of Mercury will look like when viewed through a PST. I

> think Mercury enters at about 2 o'clock and exits at 9 o'clock but I just

> wanted to be sure...

> Thanks,

> - Jay

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>

>









Yahoo! Groups Links


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