Dusty Comet C/2025 R2 (SWAN) & Horsehead Nebula: View from Chile
A new visitor from the outer Solar System, comet C/2025 R2 (SWAN), also known as SWAN25B, was discovered on September 11, 2025. This was just a day before the comet reached perihelion, its closest approach to the Sun. First spotted by Vladimir Bezugly in images from the SWAN instrument on the sun-staring SOHO spacecraft, the comet was surprisingly bright but understandably difficult to see against the Sun's glare.
Near the western horizon after sunset and slightly easier to see in binoculars from the southern hemisphere, this comet SWAN is scheduled to make its closest approach to our fair planet around October 20.
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes Mountains and the Pacific Ocean. Chile shares borders with Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage to the south.
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