A Surprising Result--All-Sky Lens Produces Light Dome Around Yagi Antenna

I have an all-sky video camera that I use to observe meteors. While working with it, I had it on the ground rather than 10' off the ground. 15' away was a yagi TV antenna on a pole. I was testing the TV antenna as one of several possible sites for reception of stations in Sacramento. At dusk, possibly during the day, I noticed that the image around the antenna produced a ghost or a dome (as in a domed building like a state capitol) around it that extended to the ground when imaging at night with a moon, near dusk, or sometimes in full sunlight during the day. I could easily produce this effect during dark skies by turning on an outdoor light on the back of the garage some 100' away from the camera. A clear acrylic hemisphere protects the camera from weather.

Why a dome? I would have expected scattered light or the shape of the pole and antenna. Nothing else in the yard seems to produces that effect. I can see the garge clearly, trees, fences, etc. I do not recall testing this with the acrylic hemisphere off. I did cover about 70% of the antenna and pole with a quite opaque black felt cloth, but still got the dome.
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Relevant Pages

  • Re: A Surprising Result--All-Sky Lens Produces Light Dome Around Yagi Antenna
    ... 15' away was a yagi TV antenna on a pole. ... around the antenna produced a ghost or a dome (as in a domed building ... A clear acrylic hemisphere protects the camera from weather. ...
    (sci.optics)
  • Re: How tall should outdoor antenna be?
    ... to the house. ... put up the Antenna, plus any potential future dish that I may want to ... I can dug a hole and pour concrete to secure the pole in place. ... L-shaped piece of shit on a 4-foot mast lag-bolted to the wooden chimney ...
    (alt.home.repair)
  • Re: Camlynx answers.
    ... are very close to the antenna you may notice a dropout. ... compensate, and generally the camera is shoulder height, and I have ... It takes a very good editor to pick one frame, ... Ricsonix is bringing out a "inline delay" unit for this very problem. ...
    (rec.arts.movies.production.sound)
  • Re: How tall should outdoor antenna be?
    ... to the house. ... I can dug a hole and pour concrete to secure the pole in place. ... I'd be worried about attaching two shorter masts to make a single long ... For a typical residential TV antenna, that only weighs 20 pounds or so and has a small sail area, it simply isn't that critical what you make mast out of, as long as it holds it up there and won't blow away in first stiff wind. ...
    (alt.home.repair)
  • Re: Camlynx answers.
    ... are very close to the antenna you may notice a dropout. ... compensate, and generally the camera is shoulder height, and I have ... It takes a very good editor to pick one frame, ... Ricsonix is bringing out a "inline delay" unit for this very problem. ...
    (rec.arts.movies.production.sound)