<HTML>Robert G. Bauval wrote:
>
> Hi.
>
> I don't know who Dave Moore is, but he ought to check his
> statement again, as well as his astronomy.
>
> I'm puzzled that he used SKYMAP Pro. since it only goes back
> to 4000 BC.
Which is enough to show the change in the obliquity of the earth's axis over long periods of time.
>Here's the data obtained from NIGHT SKY Pro. This
> is the latest in astronomical software that takes all factors
> into account as well as the power to precess back to 10,500
> BC and beyond:
>
Where does it show the Ecliptic in relation to Regulus?
> Location: Cairo
> Julian date: -2113545.30116
> i.e. 5/05/10500 BC and one month before Spring Equinox
>
What's this "one month before Spring Equinox"? It seems as if you've just picked an arbitrary date?
> Rising time of sun: 7:44 (disc fully risen).
>
Sorry. Sunrise is normally refered to as "The event or time of the daily first appearance of the sun above the eastern horizon" [dictionary.com] - in other words, the time of first appearance of any part of the disc.
> Azimuth: 103 degrees 44.928' i.e. 13 degrees 44.928' south
> of east
> Altitude: 0 degrees 9.831'
>
> This matches quite well with the results of Skyglobe 3.6 for
> the same date/time/location.
>
> Quoting Dave Moore on this issue is not a reference, I'm
> afraid.
>
> Best
>
> RB
Robert, it appears that you've "fitted the data to the curve" - you decided that the angles of the caueway matched the sunrise, and searched through the dates to find a date when a sunrise of the appropiate offset occurred.
Best Regards,
Dave</HTML>
