Oops, just checked, 93 minutes orbit.
Jez
On 15/09/2014, Charles Geilfuss <charles.geilfuss@xxxxxxxxx> wrote:
> Good point, Chuck. I did come across this G**gling around:
>
> http://www.astronomycameras.com/data/editorials/20111128/assets/chasing_the_iss.pdf
>
> Charlie
>
>
>
> On Mon, Sep 15, 2014 at 5:26 PM, Chuck Norcutt <
> chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>
>> It would have to be a very special motor drive, Charlie. A typical
>> telescope motor drive moves the scope in synchrony with the rotation of
>> the
>> earth... 360 degrees in 24 hours. If the ISS transits the moon or the
>> sun
>> in 1 second (1/2 degree of arc) it's moving 360 degrees in 720 seconds or
>> 12 minutes... 120 times faster.
>>
>> Chuck Norcutt
>>
>>
>>
>> On 9/15/2014 4:49 PM, Charles Geilfuss wrote:
>>
>>> I believe there is some type of software out there that allows for
>>> tracking
>>> of the ISS with a motor drive as it passes across the night sky. It may
>>> also give viewing spots to catch transits of Moon/ Sun. I remember
>>> reading
>>> about some time back. It was in an article that accompanied a photo of
>>> the
>>> ISS when it was docked with a Space Shuttle.
>>>
>>> Charlie
>>>
>>> On Mon, Sep 15, 2014 at 3:29 PM, Ken Norton <ken@xxxxxxxxxxx> wrote:
>>>
>>> Space station transit lasts less than 1 sec and takes some planing so
>>>>>
>>>> hardly
>>>>
>>>>> serendipitous.
>>>>>
>>>>
>>>> I've been attempting transits for about five years now. For one thing,
>>>> I don't have a telescope, so the space station is nothing more than a
>>>> speck. But another issue is the critical timing. Depending on how high
>>>> the moon or sun is in the sky, the space station is a bit bigger or
>>>> smaller. And it can also alter the time across disk quite a bit too.
>>>>
>>>> Not easy, and your position has to be quite exacting. I've gotten just
>>>> one moon transit, but the picture wasn't good enough to show anyone.
>>>>
>>>> --
>>>> Ken Norton
>>>> ken@xxxxxxxxxxx
>>>> http://www.zone-10.com
>>>> --
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