[AZ-Observing] Re: Typo on NASA image
- From: "Scott Saari" <scottsaari@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Sat, 15 Jan 2005 11:11:10 -0700
I see now - if I look closely enough, now I can see the blue orbit line for
Earth extending off the chart. Thank you, Tom.
Scott
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx]On Behalf Of Tom Polakis
Sent: Saturday, January 15, 2005 10:11 AM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Typo on NASA image
At 09:35 AM 1/15/2005 -0700, Scott Saari wrote:
>Doesn't it appear that there is a typo on this image depicting how Earth
>looks from Cassini's current point of view?
>http://saturn.jpl.nasa.gov/operations/images/cassini_today3.jpg
>
>Isn't "Mercury" really Mars?
No, I think that's really Mercury. I read somewhere that Earth was going
to transit the tiny 3' disk of the Sun as viewed from Saturn. The field of
view of the figure is 5 degrees. It's too early in the morning for me to
do basic trigonometry, but I bet that works out, knowing the diameter of
Mercury's orbit.
Tom
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