| Subject: Re: About ET radar.. |
| From: "Bjorn Damm" <bjornd@mail.invalid> |
| Date: 05/10/2004, 18:04 |
| Newsgroups: alt.sci.seti,sci.astro.seti |
"Rob Dekker" <rob@verific.com> skrev i meddelandet
news:Uqu8d.24335$QJ3.14580@newssvr21.news.prodigy.com...
...
So, to answer the question : The target range for ET transmissions,
detectable at seti@home at 100LYs would be the following :
It's probably a bit optimistic expecting ET to be within 100 LY.
The Hiparcos catalog lists 2473 stars within 100.1 LY (32.5 mas) If the
stars last 10 billion years and a technical civilisation evolve on planets
around all of them, the technical civilisation has to last 4 million years
if one should always be detectable.
Maybee you should assume a distance of 1000-5000 LY.
...