Galactic transit (aka photobombing) of NGC3384 by Asteroid (David Payne)

Contains: Solar system body or event

Galactic transit (aka photobombing) of NGC3384 by Asteroid

Revision title: Galactic transit (photobombing) of NGC3384 by asteroid

Galactic transit (aka photobombing) of NGC3384 by Asteroid

Revision title: Galactic transit (photobombing) of NGC3384 by asteroid

Photobombing of NDC3384 by AsteroidHere is the companion "blink" video from the "M105 and Leo Neighbourhood" Image, showing an asteroid crossing in front of the galaxy.
From my own questionable research, I believe the asteroid is 5116 Korsor, but it may also be FX231 or something again. It was moving along the ecliptic so I don't believe it is alien.
From the travel and imaging time, I was able to workout it angular velocity (1.3E-3 rad/hr) and orbital period 5.5 yrs. From its distance from the sun (500E9? m (somewhere between Mars and Jupiter) its true velocity of 66,000 km/hr - about 1000 x the speed limit on urban avenues.

The position of the interloper can be gleaned from the "M105..." image here. At about midnight local time (-8 UTC) on April 5/6 the asteroid was at 10h48m17.9s RA and +12d39m12.1s Dec. The calculations were based on a transit time of 5 hours accross about 2.5 minutes of view. Images were alternating through coloured filter images and only the lum images were used in this video - each lum image was either 60s at 0.62"/px (binned) & 0.3e-/ADU gain or 180s at 0.31"/px & 0.8e-/ADU gain. I assumed an solar orbital radius of 500million km, which is just a guess.

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Title: Galactic transit (photobombing) of NGC3384 by asteroid

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Galactic transit (aka photobombing) of NGC3384 by Asteroid

Revision title: Galactic transit (photobombing) of NGC3384 by asteroid

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Galactic transit (aka photobombing) of NGC3384 by Asteroid

Revision title: Galactic transit (photobombing) of NGC3384 by asteroid

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