hello all I have extracted some images from the associated gif video: http://legault.perso.sfr.fr/rvdb_k11.jpg If you put a video camera on a telescope and you aim it at a star, the atmospheric turbulence will give images that are (more or less) distorted and spread in random figures (see the animations in <http://www.damianpeach.com/pickering.htm).>http://www.damianpeach.com/pickering.htm). If you superimpose the unpredictable shaking effect of the movement of the telescope during manual tracking, you can transform a star into any possible figure (a satellite silhouette, the head of Dark Vador etc.), especially if you take hundreds of images, if you select the ones that fit your needs and if you enlarge them by a factor 2 or 3 (perhaps more) with over-subtle processing (and I do not talk about optical defects such as miscollimation or color Bayer matrix artefacts in the camera sensor) . You can see from these individual images that very different shapes are visible and that most of them could as well correspond to a completely different orientation of the satellite (and consider that these images have not been taken randomly in the video sequence but have been selected!). In addition, the orientation of the satellite in the drawing is pure speculation: we have absolutely no idea of the real orientation of the satellite during the passage. In summary, we can say that making a drawing of a satellite in an arbitrary orientation and selecting in the video sequence the images that recall this drawing (or perhaps doing the reverse: selecting arbitrarily distorted images and then making a drawing in accordance), and finally suggesting that they correspond…reminds me astrologers who justify their theories with pure coincidences carefully chosen! We must remain conscious that an image is NOT reality, it can even be very far from it, especially with an object that spans on only a few pixels. I’m afraid that all we can say is that the satellite has been photographed as a bright point passing in the sky and that the rest is total self-persuasion, including of course the fact that the light could come from the opening of the satellite and not from any other part of it. :-) regards At 15:18 25/05/2010, Ralf Vandebergh wrote: >Sent: Tuesday, May 25, 2010 3:08 PM >Subject: telescopic high res images USA-161 KH >subject:telescopic high res images USA-161 KH >_______________________________________________ > > >As most of you will know, the Keyhole satellites are discribed as >beeing space telescopes with similar disign as the Hubble, but only >with the instruments pointed at the Earth instead at space. > >As mentioned before, this observation was part of several, managed to >obtain in steady air in the night of May 23. You may pic up the subject >'high res' images questionable, but please realize that we speak of >an object in an orbit catagory 600 km altitude, you will understand that >the visible resolution is less then the images I obtain on objects like the >Space Shuttle and the ISS in almost halfway its altitude. For this reason I >just was surprised to have captured not only clearly the body of this >spacecraft but also signs of solar wings and even some detail on the body. > >http://img46.imageshack.us/img46/6374/usa161100523set1.jpg > >At 00:06:18 UTC, there was a short flare which I managed to capture, as >presented in the short movie. Note that all images are tracked fully >manually, so the capture of such short flare needs great tracking- >performance. But the higher orbit, and so lower apparant speed helped >certainly in this. > >http://img44.imageshack.us/img44/6/usa16110052302060626j.gif > >It appears, after the flare, (the second image at 00:06:19) we see a >lot more of especially the solar panels, at least I hope I have identified >the structures well. Before the flare, the panels are only visible well >on one side of the body. Although the main flare was very short, the frames >suggest, the object still was a few seconds brighter after the flare and >provided a clearer view of the satellite. > >Imaging: 10inch reflector, manually tracked) > > >Ralf Vandebergh >http://ralfvandebergh.startje.be/vieuw.php?qid=303316 >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: >http://mailman.satobs.org/mailman/private/seesat-l/attachments/20100525/446e8ae4/attachment.html > >_______________________________________________ >Seesat-l mailing list >http://mailman.satobs.org/mailman/listinfo/seesat-l Thierry Legault www.astrophoto.fr _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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