These satellites, which could be more than twice the size of BlueWalker 3, would appear even brighter. While this is only a single satellite for now, Bluewalker's maker AST SpaceMobile plans to launch more than 100 larger satellites called BlueBirds. Designed to supply 4G cell phone signals from space, the satellite has a large antenna spanning 64 square meters-the size of a squash court: Sunlight glinting off this flat surface can make long bright streaks in the night sky potentially ruining observations of distant stars and galaxies by ground-based telescopes. Indeed, many astronomers are worried about Bluewalker 3. The brightness of the satellite is a big concern," he adds. "I snapped this picture with a 24-inch telescope at Tel Aviv University." "The satellite was easy to see, shining almost as brightly as a 1st magnitude star," says Tzukran. Michael Tzukran caught it flying over Israel on July 30th: Aurora alerts: SMS TextīLUEWALKER 3 IMAGED: Almost a year after it was launched, someone has finally submitted a high-resolution image of AST SpaceMobile's Bluewalker 3 satellite. The CME was hurled almost directly toward Earth by the eruption of a magnetic filament in the sun's northern hemisphere on July 28th. Minor G1-class storms are likely with a chance of escalating to category G2.
1st when a CME is expected to hit Earth's magnetic field. 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.
SPACE PHENOMENA IN THIS PAST YEAR FULL
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. There are no significant equatorial coronal holes on the Earthside of the sun. 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. Earth-facing sunspot AR3380 poses a threat for M-class solar flares.
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