Neowise Triptych

Neowise Triptych title=
Neowise Triptych
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By Ronald Williams

Here is a triptych of Comet Neowise at three different telephoto lengths. The first, at a focal length of only 70mm, shows that it is visible in Santa Barbara's suburbs using a moderately dark location and ordinary camera equipment. In the second, made two days earlier in darker skies along Camino Cielo at 105mm, the comet appears brighter and its second bluish ion tail is just barely visible. The third is a closeup made with a 500mm lens showing the comet's lovely turquoise corona and a bit of blue in its tail, which is many thousands of miles in length. The nucleus of the comet is only about 3 miles in diameter and travelling at 144,000 miles per hour, but I can imagine that I can actually see it in the third frame. Note that the two stars at the bottom are also visible below Neowise in the first image. 

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Merritt Jul 24, 2020 07:44 AM
Neowise Triptych

It is interesting to see that our vantage on the comet is notably different than a week ago. As of last night, the comet's tail extends straight up, while last week the tail pointed to the right.

The comet appears higher in the sky after sunset, and now doesn't set until well after 11 pm.

mp805 Jul 23, 2020 02:31 PM
Neowise Triptych

@MACPUZL - Thanks for the info!

macpuzl Jul 23, 2020 02:06 PM
Neowise Triptych

MP805 - The comet is closest to Earth today. It has been gradually dimming since perihelion on July 3, but its movement toward us helped keep it bright. Now, as it heads away, it will begin to dim more rapidly, although it will be a telescopic object for months.

mp805 Jul 23, 2020 12:41 PM
Neowise Triptych

Great post Ronald, Is the comet higher in the sky than last week? Do you know how much longer we have to view this beauty?

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