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    Re: SpaceX Starlink launch: photo celestial
    From: David Pike
    Date: 2020 Jan 12, 01:08 -0800

    Frank you wrote: I have been assuming that this is the first stage re-entry burn.

    Wow!  That’s amazing.  You’re right.  I’d perceived the line of light was connected to the ground by an unlit portion, but I managed to magnify the HD photo to a tremendous scale, and there’s nothing there.  Near us here’s a large TV mast ‘Belmont Mast’, which has many lights up it to warn low flying aircraft.  It dictates the ‘IMC safety altitude’ for many miles around, and the local met men use it as one of their gauges of visibility distance.  I thought, wrongly as it turns out, it was something like that. See https://en.wikipedia.org/wiki/Belmont_transmitting_station third paragraph.  Also https://www.skyscrapercity.com/showthread.php?t=458900 night photo by Markb03 1Dec2007 10.59.  DaveP

       
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