Here it is where "apps" have been posted since long before there was an
app. <http://www.wilmslowastro.com/software/formulae.htm#StarTrails>
For those of you unfamiliar with "declination" it's the number of
degrees +/- away from the celestial equator. The celestial equator is
an imaginary line representing the equator of the sky. When you are
looking due south it's above your horizon line by an angle equal to your
latitude.
Chuck Norcutt
On 5/9/2011 1:06 PM, Ken Norton wrote:
>> Google doesn't translate 'snitty', so let's go to the point: is there
>> an app for that!?
>> Which one?
>
>
> LOL, "snitty" means "disagreeably ill-tempered" or some variation thereof.
>
> I just looked in the app store and couldn't find it. But there is/was
> an app that calculated star-trail length for time, focal-length,
> elevation and latitude. It was something like $12.99 if I recall
> correctly. I would have bought it when I found it, but I try to limit
> myself to one app purchase per month.
>
> Now I can't find it and I'm even snittier!
>
> AG
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