Dear Friends, As you might be aware of earth shine.I think earth shine ,penumbrall effect make this miracle.Our discussion is very interesting & helps to open various new doors. with regards, DDPurohit On Tue, May 3, 2011 at 12:34 AM, Fred Valcho <fvalcho@yahoo.com> wrote: > I love this topic. Perhaps Ralf, or anyone with the correct tracking gear, > could > capture the ISS in the Earth's shadow? and post it. I for one, would be > very > interested. > > > > ----- Original Message ---- > From: Patrick Schmeer <pasc1312-seesat@yahoo.de> > To: seesat-l@satobs.org > Sent: Mon, May 2, 2011 11:25:26 AM > Subject: Re: Why is ISS still visible in Earth's shadow? > > I have followed with my 8" SCT the ISS many > times not only for some seconds but up to two > or three minutes after entering the Earth's > shadow - the apparent magnitude was about 11. > For me the only explanation would be > artificial light sources (position lights or > interior lighting of the ISS). > > Patrick > > > --- Woodchuk <woodl@telus.net> wrote: > > > Friday evening using a 12.5" dob I followed > > the ISS for several second (about 15) after > > it went dark as it passed into Earth's shadow . > > It was still faintly visible when I lost it in > > the trees. It would take almost a minute for > > the ISS to move far enough down range before the > > Sun would be 6° below the horizon as seen from ISS > > and still within the region of Civil twilight -- > > as seen on Earth (as tested using Guide 8). I > > think that would still be enough light to > > illuminate ISS so it could still be seen in a > > telescope at about 100x. Being above the Earth's > > atmosphere will change the amount of twilight > > but by how much?? > > > > I'm sure the extent of twilight could be checked > > on video taken from the ISS. > > > > Larry Wood > > > > > > On 01/05/2011 6:36 PM, Bob King wrote: > > > Hi everyone, > > > I've always wanted to ask this question. No > > > doubt some of you have followed the space station > > > into Earth's shadow, where it's visible for some > > > time with binoculars. Is it being illuminated by > > > the moon or ??? > > > Thank you for your help! > > > Best wishes, > > > Bob > > _______________________________________________ > Seesat-l mailing list > http://mailman.satobs.org/mailman/listinfo/seesat-l > > _______________________________________________ > Seesat-l mailing list > http://mailman.satobs.org/mailman/listinfo/seesat-l > -- Divyadarshan D.Purohit Gurudev Observatory, Vadodara India -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.satobs.org/mailman/private/seesat-l/attachments/20110503/f7f926fd/attachment.html _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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