Earth Comet distance at impact: 83 million miles. Light travel time, about
7.5 minutes.
In the press kit:
http://deepimpact.jpl.nasa.gov/press/deep-impact-launch.pdf
it says that Tempel 1 would normally be mag 9.5 . The impact may brighten it
by a factor of 15 to 40, maybe to mag 6.
-Leonard
----- Original Message -----
From: "Jim Van Nuland" <jvn@No-Spam>
To: "The Astronomy Connection" <sf-bay-tac@No-Spam>
Sent: Saturday, March 26, 2005 1:17 AM
Subject: Re: [TAC] Deep Impact
>P T Chambers wrote:
>>
>
> Even if there is something immediately visible, it may some time for
> the light to reach us.
>
Received on Sat Mar 26 09:08:32 2005