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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: How far is polaris?
From: Michael Daly
Date: 2007 Nov 26, 11:48 -0500
From: Michael Daly
Date: 2007 Nov 26, 11:48 -0500
Isonomia wrote: > 2400 Astronomical units This is not the distance from the Earth to Polaris. This is the distance between Polaris A (the star you see easily) and Polaris B, the second brightest of the trinary system. From the article: "The two smaller companions are: α UMi B, an F3V main sequence star orbiting at a distance of 2400 AU, and α UMi Ab, a very close dwarf with an 18.5 AU radius orbit. Recent observations show that Polaris may be part of a loose open cluster of type A and F stars." If Polaris was at 2400 AU from Earth, it would be inside the Oort Cloud and part of our solar system. This would have created a very different solar system and we likely would be here (planets would be ejected from such a close binary system). Mike --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
