This beautiful image of Saturn was taken by @space_time_with_robert around 12:30 A.M at Dry Falls Visitor Center, WA, 6-19-2020.
The two dots you see to the lower left of Saturn are its moons, Titan and Rhea (need to zoom in for Rhea).
He used two telescopes simultaneously! One telescope was an ETX 80 with a Canon Rebel SL2 attached to the rear-imaging port.
The second telescope was an 8" ACF with a ZWO ASI 120 MC planetary imaging camera attached to its eyepiece port.
Both telescopes were mounted to a Meade LX65 Motorized Mount, keeping Saturn in view.
After stacking the video captured by the 8" ACF, he took the higher-resolution image generated of Saturn and layered it on top of the wide-angle photo captured by the ETX80.
To counter the strong purple halos produced by the ETX 80's achromatic lens, he also colored the entire image blue and negated all purple/pinks from the wide-angle.
The programs he used for this image were: GIMP 2.8 (for layering), Digital Photo Professional 4 (for color processing), ASICAP (for video capture), and Photoshop Express (for Noise Reduction-20, Radial Blur-20, and Dehaze-20).
I hope everyone is getting some good views of the Gas Giants this summer :) Stay safe all!
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Gravitational waves are 'ripples' in the fabric of space-time caused by some of the most violent and energetic processes in the Universe. Albert Einstein predicted the existence of gravitational waves in 1916 in his general theory of relativity. Einstein's mathematics showed that massive accelerating objects (such as neutron stars or black holes orbiting each other) would disrupt space-time in such a way that 'waves' of distorted space would radiate from the source (like the movement of waves away from a stone thrown into a pond). Furthermore, these ripples would travel at the speed of light through the Universe, carrying with them information about their cataclysmic origins, as well as invaluable clues to the nature of gravity itself.
The strongest gravitational waves are produced by catastrophic events such as colliding black holes, the collapse of stellar cores (supernovae), coalescing neutron stars or white dwarf stars, the slightly wobbly rotation of neutron stars that are not perfect spheres, and possibly even the remnants of gravitational radiation created by the birth of the Universe.
In 2017, the Nobel Prize in Physics was awarded to Rainer Weiss, Kip Thorne and Barry Barish for their role in the direct detection of gravitational waves.
Special thanks to Philip Cowperthwaite @univofmaryland Lead Animator
Bruno Giacomazzo @cuboulder Animator
Scott Wiessinger (USRA): Animator
Christopher E. Henze (#NASA /ARC): Animator
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