![]() ![]() "Lunar Distance." 1 LD = 384,401 km, the distanceīetween Earth and the Moon. The next batch of SOHO data will probably show a small cloud of debris and a decapitated tail emerging from behind the sun. This fragment is a big exception.īy now the comet has been vaporized. Several of these fragments pass by the sun and disintegrate every day. Named after a 19th century German astronomer who studied them in detail, Kreutz sungrazers are fragments from the breakup of a giant comet at least 2000 years ago. The kamikaze comet is a member of the Kreutz sungrazer family. Note: The comet briefly dims when it passes behind a mechanical arm, which supports the coronagraph's occulting disk SOHO coronagraphs caught the dirty snowball diving into the sun on Dec. SUNDIVING COMET: By the time you finish reading this, the Solar System will have one less comet. Even Amazon doesn't carry items this far out.ĭon't forget to enter coupon code "BUZZALDRIN" at checkout for a 10% holiday discount.Īll sales support hands-on STEM education It's filled with unique items that have flown to the edge of space onboard cosmic ray research balloons.Ĭarried aloft by giant helium balloons, these unique gifts have flown above 99.7% of Earth's atmosphere, experiencing space-like blasts of cosmic rays, extreme cold, and a wild ride parachuting back to Earth after the balloon explodes. Are you looking for a far-out gift? Check out the Earth to Sky Store. More images: from Antonio Piras of Assemini, Sardinia, Italy from Sebastian Voltmer of Almodóvar del Río, Spain from the Sormano Astronomical Observatory in ItalyĬHRISTMAS GIFTS FROM THE EDGE OF SPACE: Christmas is coming. (Did you observe the occultation? Submit your images here.) Stay tuned for reports from other observing sites. However, the rotating asteroid has an iregular shape, and probably did not cover as much of the star as expected. ![]() "As the video shows, however, the star did not disappear."īetelgeuse was supposed to dim at least 3 magnitudes when Leona passed in front of it. ![]() "With my naked eye, I could see a reduction in light from Betelgeuse for a maximum of two seconds," says Sol. Mohamad Sol positioned himself near the centerline in Hondón de las nieves, Spain, and took this video: Apparently this was some kind of an annular eclipse, as Leona could not cover Betelgeuse completely." In Bursa, Turkey, astronomer Tunç Tezel says Betelgeuse dimmed by "two full magnitudes at least, but did not disappear. "You can notice the modest and brief drop in brightness of the star about halfway through the shot," says Melandri. Using his camera, he made a 1 minute star trail exposure to illustrate the change: "Observing with the naked eye, the drop in brightness was barely visible," reports Fabrizio Melandri from Terranova Da Sibari, Italy. THE BETELGEUSE OCCULTATION-WHAT HAPPENED? As reports trickle in from Europe and the Middle East, a consensus is emerging: The occultation of Betelgeuse by asteroid Leona may have been less dramatic than expected. 28, 2023, as a show of thanks for years of service and hope for future daisies: Until then, we will maintain AIM's iconic "daily daisy," frozen at Feb. There may be some hope of a recovery as AIM's orbit precesses into full sunlight in 2024. As a result AIM is offline, perhaps permanently. What happened to NASA's AIM spacecraft, which has been monitoring NLCs since 2007? Earlier this year, the spacecraft's battery failed. As the season progresses, these dots will multiply in number and shift in hue from blue to red as the brightness of the clouds intensifies. For the rest of the season, daily maps from NOAA 21 will be presented here:Įach dot is a detected cloud. An instrument onboard NOAA 21 ( OMPS LP) is able to detect NLCs (also known as "polar mesospheric clouds" or PMCs). The first clouds were detected inside the Arctic Circle by the NOAA 21 satellite. The northern season for NLCs began on May 26th. Solar wind flowing from this coronal hole could reach Earth on Dec. Switch to: Europe, USA, New Zealand, Antarctica 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. Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is intensifying, and this is reflected in the number of cosmic rays entering Earth's atmosphere. Sunspot AR3513 has a 'beta-gamma' magnetic field that harbors energy for M-class solar flares. ![]()
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