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May 6, 2024, 3:44 pm UTC    
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Bent
August 11, 2001 11:14AM
<HTML>Stephen:
The Cambridge Encyclopedia of Astronomy gives Sirius' proper motion as 1.324 arc sec. per yr. This amounts to 4.59 * for the period in question, meaning that even if the proper motion of Sirius was at a right angle to the horizon, it would still be below the horizon in 10450 B.C., assuming Dave's declinations of Saiph and Sirius for 10450 B.C. are correct.

Bent</HTML>
Reply Quote
Subject Author Posted

Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Dave Moore August 10, 2001 06:39PM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Bent August 10, 2001 11:10PM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Dave Moore August 11, 2001 04:49AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Bent August 11, 2001 08:24AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Stephen Tonkin August 11, 2001 10:14AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Frank Doernenburg August 11, 2001 03:53AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Bent August 11, 2001 09:41AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Bent August 11, 2001 11:14AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previous)

Stephen Tonkin August 11, 2001 11:40AM

Re: Visibility of Orion in 10500 BC

Bent August 11, 2001 12:47PM

Re: Visibility of Orion in 10500 BC

Bent August 11, 2001 05:02PM

Re: Visibility of Orion in 10500 BC

Chris Tedder August 11, 2001 12:10PM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previ

Martin Stower August 12, 2001 10:35AM

Re: Visibility of Orion in 10500 BC repost with correct pictures.. (ignore previ

Dave Moore August 12, 2001 12:14PM



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