Aldebaran and Mars Twinkle Trails
Taken by Bob Beal on September 7, 2022 @ St George, Utah, USA
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  Camera Used: Panasonic DC-G9
Exposure Time: 50/10
Aperture: f/2.8
ISO: 1600
Date Taken: 2022:09:07 03:28:30
 
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Details:
Mars and Aldebaran pose at each tip of the V-shaped Hyades star cluster in Taurus. At first glance the two appear similar but they're not: Mars the planet is close enough to Earth to display a disk while Aldebaran the star is too far away to show as anything but a dot. This becomes obvious when one can't hold the camera still: Mars' disk is too fat for atmospheric dispersion to (readily) break it up while Aldebaran's pinpoint succumbs easily and cycles through all the colors of the rainbow. To the naked eye Mars shines with a steady light while Aldebaran twinkles away madly--a rose-tinted diamond flashing spectral colors.

Panasonic G9, 100mm, handheld, (f/2.8, 5 sec, ISO 1600), FOV ~ 10° x 7.5°.

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