Wednesday, July 15, 2020

Comet NEOWISE July 2020 Viewing

I will be out this evening and if I am very lucky I will be able to see the comet.

"When and where to look in the morning As a morning object, the comet's best views will come during a three-day stretch on the mornings of July 11, 12 and 13, when it will stand 10 degrees above the northeast horizon, 80 minutes before sunrise — the beginning of nautical twilight. Your clenched fist held at arm's length measures approximately 10 degrees in width. So, on these three mornings, the head of Comet NEOWISE will appear about "one fist" up from the northeast horizon.

The sky should appear reasonably dark at that time with only the light of the last quarter moon providing any interference. As the minutes tick off, the comet will be getting higher, but the dawn sky will be getting increasingly brighter as well.

After July 13, NEOWISE will drop rapidly lower and swing more toward the north-northeast. By July 18, it will appear only 5 degrees above the horizon at the start of nautical twilight. And only a few mornings later its altitude will have become too low to see it at all in pre-sunrise sky.

Evening visibility

But as its morning visibility diminishes, there is good news: Comet NEOWISE will become prominent in the evening sky after sunset. That will also mean a much larger audience will be able to see it during "prime-time" viewing hours instead of having to awaken during the wee hours of the early morning.

Comet NEOWISE will be visible about 80 minutes after sunset.Comet NEOWISE will be visible about 80 minutes after sunset.  The first good opportunity for evening viewing begins on July 12, when the head of the comet will stand 5 degrees above the north-northwest horizon, 80 minutes after sunset (the end of nautical twilight). By July 14 its altitude will have already doubled to 10 degrees, and by July 19 it will have doubled yet again to 20 degrees up by the end of nautical twilight. By then it will have moved to above the northwest horizon.

So, we at Space.com feel that the best time to view the comet during the evening will come during the July 14-19 time frame."
https://www.space.com/comet-neowise-visibility-july-2020.html

H/T: https://pjmedia.com/instapundit/

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