RE: Geometric evidence of an old galaxy

From: Dick Fischer <>
Date: Fri Dec 09 2005 - 13:41:42 EST

Hi David, you wrote:
>New Science "Sciencexpress" articles have been made available (for
the period 1 Dec 2005 to 8 Dec 2005):
The Distance to the Perseus Spiral Arm in the Milky Way
     Y. Xu, M. J. Reid, X. W. Zheng, and K. M. Menten
     p. 11209141<
They were able to use triangulation to measure the distance-just over
6000 light years. As a relatively close part of our own galaxy, this
distance indicates that the light from other galaxies would require
well over 10,000 years to reach us, unless basic geometry doesn't
SN1987a was dated to 169,000 ly in the close by Large Magellanic Cloud.
The rings which became visible long after the initial explosion was
recorded were instrumental in obtaining a reliable distance figure.
~Dick Fischer <>
Received on Fri Dec 9 13:42:28 2005

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