Exploring the Earth and Sky of the West

Comet NEOWISE: Update and Photos

Comet C/2020 F3 (NEOWISE) continues to put on a stellar show for skywatchers in the northern hemisphere. Over the past week, the comet has moved into the evening sky, making a trip out to see it somewhat more palatable than it was when I first highlighted the comet 11 days ago. Last week, I had the pleasure of viewing the comet twice in one night while camping on the east flank of Mt. St. Helens. High clouds prevented a great view at sunset, but had mostly cleared just four hours later when the comet rose again in the northeast. Just below and to the left of the comet was the distant cone of Mt. Rainier. Low clouds in the river valleys below us made for a spectacular view:

A comet and its tail appears in the pre-dawn sky with a mountain range and valley fog in the foreground

Comet NEOWISE rises over the distant cone of Mt. Rainier as seen from Mt. St. Helens.

A comet and its tail appears in the pre-dawn sky with a mountain range and valley fog in the foreground

Comet NEOWISE on the morning of July 13, 2020.

Unfortunately, the comet has dimmed noticeably over the past few evenings. While we still have a few days until its closest approach to Earth, the comet has receded from the Sun enough that its activity is likely beginning to wane. The next few nights will likely provide the final chance to see this comet and its tail with the unaided eye (until it returns ~6,800 years from now that is!) The waxing moon will begin to interfere by later this week and by the time the moon leaves the evening sky a few weeks from now, the comet will likely have faded from naked eye visibility. To see it, look northwest 1-2 hours after sunset. The comet will appear a little below the bowl of the Big Dipper, and is far enough north now that viewing is significantly better from more northerly locations. More details on spotting the comet can be found here: https://earthsky.org/space/how-to-see-comet-c2020-f3-neowise

Good luck!

2 responses

  1. Great photo of the comet over Mt Rainier. Thank you for posting this

    July 22, 2020 at 7:25 am

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