Published by Carl Hergenrother

I am a professional astronomer specializing in the study of comets, asteroids and meteors. This blog will focus on my professional and amateur work in this field.

1 Comment

  1. I have seen a bright appearance in the north western sky about 9 pm. The appearance looked to be about the size of a fist. We are located in the mountains north east of San Diego.. Can you tell me what we saw.

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