![]() ![]() ![]() They get their name from German astronomer Heinrich Kreutz, who studied them in detail in the 19th century. Kreutz sungrazers are fragments from the breakup of a single giant comet many centuries ago. ![]() 15th, SOHO coronagraphs caught a Kreutz sungrazer diving into the sun just as a bright CME was leaving. SUNDIVING COMET AND CME (UPDATED): The sun just swallowed a comet. More sightings: from Scott Tilley of Roberts Creek, BC from Patrick Wiggins of the Salt Lake Astronomical Society, Utah Repeated visits to Earth allow Lucy to visit a record-breaking number of targets (one main belt asteroid and seven Trojan asteroids) during its 12-year mission to investigate the origins of the solar system.ĭid you photograph Lucy? Submit your pictures here. Lucy will be back on Dec 12, 2024, for a second flyby, and on Dec 25, 2030, for a third. This was just the first of three gravity assist maneuvers Lucy will make as it gains momentum for its trip to the Trojan asteroids of Jupiter. "Each streak is a 15-second exposure ISO 1600." "I caught the spacecraft just after closest approach when it emerged from Earth's shadow," she says. Debra Ceravolo saw it streaking over the southern Okanagan Valley in British Columbia, Canada: LUCY SIGHTINGS: NASA's Lucy spacecraft flew past Earth yesterday so close that it skimmed the top of our planet's upper atmosphere. NOAA forecasters say the chance of an X-flare today is no more than 1%. All of the sunspots on the solar disk have simple magnetic fields that pose no threat for strong solar flares. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining-a result of the yin-yang relationship between the solar cycle and cosmic rays.ĪLL QUIET: Despite yesterday's rapid growth of a sunspot in the sun's southern hemisphere, solar activity remains low. Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is beginning, and this is reflected in the number of cosmic rays entering Earth's atmosphere. New sunspot AR3124 is growing rapidly, but it has a simple magnetic field that does not yet pose a threat for strong solar flares. ![]()
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