Re: Age of the earth

Bill Payne (bpayne@voyageronline.net)
Tue, 01 Sep 1998 21:19:14 -0600

McCarrick, Allan wrote:

> The gradual dimming of
> SN-1987a offered a rare chance to watch the cool down period.

Do you know if the SN1987A rings, which became visible about a year
after the explosion, are now brighter, the same, or dimmer than they
were in 1988?

Bill