Comment 34 for bug 575621

The attached slide may help to check that what you do is correct. I
made the slide, but the important diagram lower right, is from an
article in Astronomy and Geophysics, some years ago (like10) written by
Stephenson Morrsion, who's work is probably what you are using
Best wishes
Robin Catchpole

On Tue, 08 Jan 2013 12:17:16 -0000, Alexander Wolf wrote:
> ** Changed in: stellarium
> Status: Triaged => In Progress
>
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> bug
> report.
> https://bugs.launchpad.net/bugs/575621
>
> Title:
> Delta T and lunar acceleration
>
> Status in Stellarium:
> In Progress
>
> Bug description:
> Hello all of you,
>
> For some reason a full solar eclipse in Athens Greece (Jan 14th,
> 484 CE around 5:48 UTC while they rise) is not calculated in the same
> way as several other planetary programs (also using VSOP87/ELP2000:
> http://www.iol.ie/~geniet/eng/skyprog.htm#Software )
> So I am trying to find out a few things; do people know what Delta
> T formula (like the newest one of Stephenson, Morrison 2004?) is
> being
> used and what lunar acceleration (-25.7 +/- 0.2 "/year^2) has been
> used?
>
> I get with Stellarium (0.10.4) the max. eclipse around 7:40 UTC (so
> it
> is well after rising (2 hours)).
>
> Thanks for the feedback. I am new to Stellarium and can't really
> yet
> find my way around the vast amount of info, that is why I ask it in
> this forum.
>
> All the best,
>
> Victor
>
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