[Magdalen] Good grief! talk about a rare event! Wonderful photo.

[James Oppenheimer-Crawford]

I'll never forget the little conversation Piccard and Riker had about
Lagrange points. They did try to bring science into the stories.

James W. Oppenheimer-Crawford
*“A life is like a garden. Perfect moments can be had, but not preserved,
except in memory. LLAP**”  -- *Leonard Nimoy

On Tue, Oct 13, 2015 at 4:43 PM, Roger Stokes <roger.stokes65 at btinternet.com
> wrote:

> On 13/10/2015 21:11, James Oppenheimer-Crawford wrote:
>
>> I did not know this, but apparently we have a satellite waaay out there
>> watching the earth. As it happens, the moon came between the satellite and
>> the earth, and it also just happened that this happened when the sun was
>> behind the "photographer," so we get a full sphere (well, virtually full)
>> of both the earth and the moon.
>>
>
> This satellite is always between the sun and the earth at a point where
> the gravitational pull of the two of them balances out so it's falling
> towards neither of them, orbiting the Sun in synchronicity with the Earth..
>
> This link points to the NASA web site's animation of a series of photos.
>> This is a real jaw dropper. Both the Earth and the moon are in focus at
>> the
>> same time, which initially made me think this had to be a hoax. From that
>> distance, however, I guess focal length isn't a big factor....
>>
>
> Quite, set it to infinity.
>
> Roger
>