How Would a Typical Asteroid Appear on a Time Exposure

question 35

Multiple Choice

How would a typical asteroid appear on a time exposure photograph of the sky as it orbited the Sun if the camera were tracking the background stars?

• A) The asteroid would look like a star, a small extra dot not shown on star charts of this area of the sky.
• B) The asteroid would look like a small, diffuse patch against the sharp images of stars because of the dust and gas surrounding it.
• C) The asteroid would produce a flash of light as it crossed the field of view of the camera.
• D) The asteroid would produce a short trail as it moved slowly against the background stars.

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