Contains:  Solar system body or event
Asteroids beneath The Pleiades, David McClain

Asteroids beneath The Pleiades

Asteroids beneath The Pleiades, David McClain

Asteroids beneath The Pleiades

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Description

A friend from grad school, from long ago, dropped by for a short stay. Last night we went after a frame with 3 asteroids just below the Pleiades. This is a composite of a stack of over 3 hours of subs, each 150s long. Canon 200mm F/2.8 operated at F/4. (50 whopping mm of aperture!)

In order to get the trailing, I had to avoid tossing outlier pixels, which also means that the hot pixels remain. You can see our dither pattern in them at various places in the final image. The faintest stars should be around mag 15. The asteroids were between 11 and 13 mag.

That reddish yellow streak in the upper left of the image is a lens flare caused by operating about 10 deg from the Moon.

... by my calculations... we have 42 days before they strike Earth!

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Revision gets rid of the Moon flare and hot pixels, but sacrifices the Merope nebula. Adds 2x insets of each asteroid.

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Revisions

  • Asteroids beneath The Pleiades, David McClain
    Original
  • Final
    Asteroids beneath The Pleiades, David McClain
    B

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Asteroids beneath The Pleiades, David McClain