> Please excuse what may be an off topic topic. > > Two things.... > > A while back I asked a question about an astronaut saying "hello" from the > ISS using a signal mirror. Well what about the other way around? > > > The other thing.... > > How bright of an incandescent light (or laser) would a person in a dark area > need to signal an observer on a high pass of the ISS? This would I'm sure > depend upon the light pollution that the person is embedded in at the time. > Again, a matter of contrast. > > Thanks and clear skies, > > Tom > Iowa > USA Actually, I have recently proposed something similar to Don Pettit on the ISS. He has not yet replied as to whether the project can be done (he's probably still laughing himself silly <g>). I have proposed that he look for the Texas Star Party (being held late April/early May near Ft. Davis Texas) from orbit. My hope is that at one point during the Texas Star Party (passes not yet calculated) the ISS will make a pass over that part of the country while it is dark. What I want to do is temporarily suspend TSP darkout rules and have everyone at TSP (600+ people) shine the brightest flashlight they have at the ISS, all at the same time. My two bright lights alone total 3.5 million candle power so I would suspect we could easily get a 100 million candlepower aimed in the general direction of the ISS. It should be interesting. Robert Reeves reeves10@swbell.net 520 Rittiman Rd. www.robertreeves.com San Antonio, Texas 78209 210-828-9036 USA 29.484 98.440 200 meters ----------------------------------------------------------------- To unsubscribe from SeeSat-L, send a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@satobs.org List archived at http://www.satobs.org/seesat/seesatindex.html
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