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by Ralf Rohner
$48.00
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Our hoodies are made from a 75% cotton / 25% polyester blend and are available in five different sizes. All hoodies are machine washable.
Design Details
I captured this close-up of Comet C/2020 F3 (NEOWISE) 3 days before its closest apphoach to Earth.... more
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Greeting Card
iPhone Case
Throw Pillow
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Shower Curtain
Tote Bag
Round Beach Towel
Zip Pouch
Beach Towel
Weekender Tote Bag
Portable Battery Charger
Bath Towel
Apparel
Coffee Mug
Yoga Mat
Spiral Notebook
Fleece Blanket
Tapestry
Jigsaw Puzzle
Sticker
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I captured this close-up of Comet C/2020 F3 (NEOWISE) 3 days before its closest apphoach to Earth.
If you have asked yourself why Neowise had two tails, you might be interested in the following explanation:
The upper, blue tail is called the ion tail. It points directly away from the Sun and is pushed out by the charged solar wind, along the Sun's magnetic field. The structure in the ion tail comes from different rates at which light emitting ions are expelled from the comet's nucleus and the constantly changing nature of the solar wind.
The lower, white tail consists of dust and reflects the sunlight. The dust tail is pushed out by the Sun's radiation pressure and curves because heavier dust particles are better able to resist this light pressure and continue along a solar orbit. The origin of the wavy structure in the dust tail is not fully understood. Most likely, it is produced by rotating streams of light reflecting dust, expelled by ice melting on its 5...
As a landscape photographer and pilot I have the privilege to travel the world and visit some of the most beautiful places on our planet. I started photography as an astro-photographer, which still shows in my passion for nightscapes. While not exclusively shooting at night, a big part of my work shows the beauty of the starry night skies in combination with some iconic landscapes. Thanks for visiting my gallery.
$48.00
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