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    astronomical snapshots by Joe Stieber



The Lunar X, 2021

This image of the moon was captured on May 18, 2021, from Maple Shade, NJ. It was taken at 8:12 pm EDT (the same time as sunset) with a Canon EOS RP mirrorless digital camera and a Tamron 150 to 600 mm, f/5 to 6.3 telephoto zoom lens (set to 600 mm focal length) on a fixed tripod. Here's the setup (taken with my iPhone). It was exposed 1/1000 second at f/8.0, ISO 4000, daylight white balance, then mildly adjusted in Canon's Digital Photo Professional 4 and cropped to about 30% of the original linear dimensions, providing a field 1.0 wide x 0.75 high. Mouseover for labels.

Dave Mitsky provides Lunar X predictions in his monthly calendar linked at the DVAA home page. Phil Harrington's predictions for 2018 to 2023 are tabulated here.



The Lunar X, 2018
Fully Illuminated

Here's a single frame snapshot of the gibbous moon taken at 10:46 pm EDT on May 24, 2018 (3 days after first quarter at 11:49 pm on May 21, 2018), with a Canon 7D Mk II digital SLR camera at the 910 mm prime focus of a Stellarvue 130 mm, f/7 apo refractor. It was exposed 1/1000 second at ISO 400, then converted to monochrome and cropped to about a third of the sensor's area yielding a field about 0.6 square. It wasn't a specific target when I took the picture, but when I examined it closely, I noticed the Lunar X was visible, although not nearly as prominent as when it appears as a highlight at the terminator. Mouseover for a label.


Here's an crop of the image above to better show the "X" (mouseover for a label). Unfortunately, I do not have ready access to the original image for a better cropped view, as opposed to this cropping of an already-cropped and resized image.




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