Answered: If you saw Comet Halley when the comet… | bartleby

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There is one part to this question. I need to know the km. Thank you!

If you saw Comet Halley when the comet was 0.5 AU from Earth and you observed a visible tail 6 degrees long, how long was the tail in kilometers? (Hint: Use the small-angle formula.) (Note: 1 AU = 1.5 x 10° km.)
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