Jump to content

Proba-2 sees two partial eclipses


Recommended Posts

Proba-2_sees_two_partial_eclipses_card_f Video: 00:00:23

ESA’s Proba-2 captured two partial solar eclipses on 25 October 2022.

A solar eclipse is caused by the movement of the Moon around Earth. Despite their much different sizes, due to their separation, the Moon appears to be about the same size as the significantly larger Sun in the sky. Occasionally, the Moon passes in front of the Sun, blocking its light, so that part of the Earth’s surface is in the Moon’s shadow. The line-up is not always perfect, and so not every eclipse is a total solar eclipse.

On 25 October only part of the Sun’s light was blocked by the Moon, creating what is known as a partial eclipse. It was visible from most of Europe, North-Africa, the middle East and parts of Asia, with the Moon blocking 82% of the sunlight near the North Pole. In Europe up to 40% of the sunlight was obscured during the event.

This partial eclipse was observed by ESA’s Proba-2 mission from its unique vantage point in space. Its SWAP instrument studies the Sun in the extreme ultraviolet (EUV) light where it focuses on the solar corona – the Sun’s hot turbulent atmosphere – at temperatures of about a million degrees. The corona is seen in the background of this video.

For us on Earth, the Moon passes only once in front of the Sun during a solar eclipse. Since Proba-2 orbits the Earth in about 100 minutes, it was able to observe this eclipse not once but twice. Additionally, the Moon was first observed while traversing the field of view in the upper right corner, but not blocking any solar light. The first observation of the eclipse around 10:30 UTC (12:30 CEST) was cut short as Proba-2 experienced an occultation. Such an occultation occurs when Proba-2 flies through the Earth’s atmosphere and the SWAP instrument is not active. The second partial eclipse was captured around 12:25 UTC (14:25 CEST). This movie shows both the eclipses.

ESA's Sun-watching spacecraft monitor the Sun's behaviour to better understand the influence of space weather on our home planet. The ESA-led Solar Orbiter mission, in partnership with NASA, is orbiting the Sun from closer than ever before and will provide the first high resolution images of the Sun's poles. Meanwhile ESA Vigil will be the first mission to keep a constant eye on brewing space weather events, to better protect vital infrastructure on Earth and in orbit. 

View the full article

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By NASA
      The barred spiral galaxy NGC 6872 is interacting with a smaller galaxy to the upper left. The smaller galaxy has likely stripped gas from NGC 6872 to feed the supermassive black hole in its center.X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/J. Schmidt, L. Frattare, and J. Major To commemorate the 25th anniversary of NASA’s Chandra X-ray Observatory launch, the Chandra team released this never-seen-before image of NGC 6872, a spiral galaxy in the Pavo (Peacock) constellation, on July 22, 2024. This image and 24 others, which all include data from Chandra, demonstrate how X-ray astronomy explores all corners of the universe.
      NGC 6872 is 522,000 light-years across, making it more than five times the size of the Milky Way galaxy; in 2013, astronomers from the United States, Chile, and Brazil found it to be the largest-known spiral galaxy, based on archival data from NASA’s Galaxy Evolution Explorer. This record was surpassed by NGC 262, a galaxy that measures 1.3 million light-years in diameter.
      See more photos released for this celebration.
      Image credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/J. Schmidt, L. Frattare, and J. Major
      View the full article
    • By NASA
      The distorted spiral galaxy at center, the Penguin, and the compact elliptical at left, the Egg, are locked in an active embrace. This near- and mid-infrared image combines data from NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument), and marks the telescope’s second year of science. Webb’s view shows that their interaction is marked by a glow of scattered stars represented in blue. Known jointly as Arp 142, the galaxies made their first pass by one another between 25 and 75 million years ago, causing “fireworks,” or new star formation, in the Penguin. The galaxies are approximately the same mass, which is why one hasn’t consumed the other.NASA, ESA, CSA, STScI To celebrate the second science anniversary of NASA’s James Webb Space Telescope, the team has released a near- and mid-infrared image on July 12, 2024, of two interacting galaxies: The Penguin and the Egg.
      Webb specializes in capturing infrared light – which is beyond what our own eyes can see – allowing us to view and study these two galaxies, collectively known as Arp 142. Their ongoing interaction was set in motion between 25 and 75 million years ago, when the Penguin (individually cataloged as NGC 2936) and the Egg (NGC 2937) completed their first pass. They will go on to shimmy and sway, completing several additional loops before merging into a single galaxy hundreds of millions of years from now.
      Learn more about the Penguin and the Egg.
      Image Credit: NASA, ESA, CSA, STScI
      Text Credit: NASA Webb Mission Team
      View the full article
    • By NASA
      The Goldstone Solar System Radar, part of NASA’s Deep Space Network, made these observations of the recently discovered 500-foot-wide (150-meter-wide) asteroid 2024 MK, which made its closest approach — within about 184,000 miles (295,000 kilometers) of Earth — on June 29.NASA/JPL-Caltech The Deep Space Network’s Goldstone planetary radar had a busy few days observing asteroids 2024 MK and 2011 UL21 as they safely passed Earth.
      Scientists at NASA’s Jet Propulsion Laboratory in Southern California recently tracked two asteroids as they flew by our planet. One turned out to have a little moon orbiting it, while the other had been discovered only 13 days before its closest approach to Earth. There was no risk of either near-Earth object impacting our planet, but the radar observations taken during these two close approaches will provide valuable practice for planetary defense, as well as information about their sizes, orbits, rotation, surface details, and clues as to their composition and formation.
      Passing Earth on June 27 at a distance of 4.1 million miles (6.6 million kilometers), or about 17 times the distance between the Moon and Earth, the asteroid 2011 UL21 was discovered in 2011 by the NASA-funded Catalina Sky Survey, in Tucson, Arizona. But this is the first time it has come close enough to Earth to be imaged by radar. While the nearly mile-wide (1.5-kilometer-wide) object is classified as being potentially hazardous, calculations of its future orbits show that it won’t pose a threat to our planet for the foreseeable future.
      Because close approaches by asteroids the size of 2024 MK are relatively rare, JPL’s planetary radar team gathered as much information about the near-Earth object as possible. This mosaic shows the spinning asteroid in one-minute increments about 16 hours after its closest approach with Earth.NASA/JPL-Caltech Using the Deep Space Network’s 230-foot-wide (70-meter) Goldstone Solar System Radar, called Deep Space Station 14 (DSS-14), near Barstow, California, JPL scientists transmitted radio waves to the asteroid and received the reflected signals by the same antenna. In addition to determining the asteroid is roughly spherical, they discovered that it’s a binary system: A smaller asteroid, or moonlet, orbits it from a distance of about 1.9 miles (3 kilometers).
      “It is thought that about two-thirds of asteroids of this size are binary systems, and their discovery is particularly important because we can use measurements of their relative positions to estimate their mutual orbits, masses, and densities, which provide key information about how they may have formed,” said Lance Benner, principal scientist at JPL who helped lead the observations.
      These seven radar observations by the Deep Space Network’s Goldstone Solar System Radar shows the mile-wide asteroid 2011 UL21 during its June 27 close approach with Earth from about 4 million miles away. The asteroid and its small moon (a bright dot at the bottom of the image) are circled in white.NASA/JPL-Caltech Second Close Approach
      Two days later, on June 29, the same team observed the asteroid 2024 MK pass our planet from a distance of only 184,000 miles (295,000 kilometers), or slightly more than three-quarters of the distance between the Moon and Earth. About 500 feet (150 meters) wide, this asteroid appears to be elongated and angular, with prominent flat and rounded regions. For these observations, the scientists also used DSS-14 to transmit radio waves to the object, but they used Goldstone’s 114-foot (34-meter) DSS-13 antenna to receive the signal that bounced off the asteroid and came back to Earth. The result of this “bistatic” radar observation is a detailed image of the asteroid’s surface, revealing concavities, ridges, and boulders about 30 feet (10 meters) wide.
      Close approaches of near-Earth objects the size of 2024 MK are relatively rare, occurring about every couple of decades, on average, so the JPL team sought to gather as much data about the object as possible. “This was an extraordinary opportunity to investigate the physical properties and obtain detailed images of a near-Earth asteroid,” said Benner.
      This sunset photo shows NASA’s Deep Space Station 14 (DSS-14), the 230-foot-wide (70-meter) antenna at the Goldstone Deep Space Communications Complex near Barstow, California.NASA/JPL-Caltech The asteroid 2024 MK was first reported on June 16 by the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) at Sutherland Observing Station in South Africa. Its orbit was changed by Earth’s gravity as it passed by, reducing its 3.3-year orbital period around the Sun by about 24 days. Although it is classified as a potentially hazardous asteroid, calculations of its future motion show that it does not pose a threat to our planet for the foreseeable future.
      The Goldstone Solar System Radar Group is supported by NASA’s Near-Earth Object Observations Program within the Planetary Defense Coordination Office at the agency’s headquarters in Washington. Managed by JPL, the Deep Space Network receives programmatic oversight from Space Communications and Navigation program office within the Space Operations Mission Directorate, also at NASA Headquarters.
      More information about planetary radar and near-Earth objects can be found at:
      https://www.jpl.nasa.gov/asteroid-watch
      News Media Contact
      Ian J. O’Neill
      Jet Propulsion Laboratory, Pasadena, Calif.
      818-354-2649
      ian.j.oneill@jpl.nasa.gov
      2024-097
      Share
      Details
      Last Updated Jul 03, 2024 Related Terms
      Near-Earth Asteroid (NEA) Asteroids Deep Space Network Jet Propulsion Laboratory Planetary Defense Planetary Defense Coordination Office Potentially Hazardous Asteroid (PHA) Space Communications & Navigation Program Explore More
      3 min read NASA’s ECOSTRESS Maps Burn Risk Across Phoenix Streets
      Article 19 hours ago 5 min read NASA Asteroid Experts Create Hypothetical Impact Scenario for Exercise
      Article 23 hours ago 5 min read NASA’s NEOWISE Infrared Heritage Will Live On
      Article 2 days ago View the full article
    • By NASA
      NASA/JPL/Space Science Institute The Cassini-Huygens spacecraft captured this last “eyeful” of Saturn and its rings on March 27, 2004, as it continued its way to orbit insertion. This natural color image shows the color variations between atmospheric bands and features in the southern hemisphere of Saturn, subtle color differences across the planet’s middle B ring, as well as a bright blue sliver of light in the northern hemisphere – sunlight passing through the Cassini Division in Saturn’s rings and being scattered by the cloud-free upper atmosphere.
      Cassini-Huygens, at 12,593 pounds one of the heaviest planetary probes ever, was launched on Oct. 15, 1997, on a Titan IVB/Centaur rocket from Cape Canaveral Air Force Station in Florida. Although that was the most powerful expendable launch vehicle available, it wasn’t powerful enough to send the massive Cassini-Huygens on a direct path to Saturn. Instead, the spacecraft relied on several gravity assist maneuvers to achieve the required velocity to reach the ringed planet. This seven-year journey took it past Venus twice, the Earth once, and Jupiter once, gaining more velocity with each flyby for the final trip to Saturn.
      On July 1, 2004, with the Huygens lander still attached, Cassini fired its main engine for 96 minutes and entered an elliptical orbit around Saturn, becoming the first spacecraft to do so. Thus began an incredible 13-year in-depth exploration of the planet, its rings and its satellites, with scores of remarkable discoveries.
      The Cassini mission ended on Saturn in 2015, when operators deliberately plunged the spacecraft into the planet to ensure Saturn’s moons remain pristine for future exploration.
      Image Credit: NASA/JPL/Space Science Institute
      View the full article
    • By NASA
      2 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      View of the Nova-C landing area near Malapert A in the South Pole region of the Moon. North is to the right. Taken by LROC (Lunar Reconnaissance Orbiter Camera) NAC (Narrow Angle Camera).NASA/GSFC/Arizona State University NASA has released two white papers associated with the agency’s Moon to Mars architecture efforts. The papers, one on lunar mobility drivers and needs, and one on lunar surface cargo, detail NASA’s latest thinking on specific areas of its lunar exploration strategy.
      While NASA has established a yearly cadence of releasing new documents associated with its Moon to Mars architecture, the agency occasionally releases mid-cycle findings to share essential information in areas of interest for its stakeholders.
      “Lunar Mobility Drivers and Needs” discusses the need to move cargo and assets on the lunar surface, from landing sites to points of use, and some of the factors that will significantly impact mobility systems.
      “Lunar Surface Cargo” analyses some of the current projected needs — and identifies current capability gaps — for the transportation of cargo to the lunar surface.
      The Moon to Mars architecture approach incorporates feedback from U.S. industry, academia, international partners, and the NASA workforce. The agency typically releases a series of technical documents at the end of its annual analysis cycle, including an update of the Architecture Definition Document and white papers that elaborate on frequently raised topics.
      Under NASA’s Artemis campaign, the agency will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and its first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars for the benefit of all.
      You can find all of NASA’s Moon to Mars architecture documents at:
      https://www.nasa.gov/moontomarsarchitecture
      Share
      Details
      Last Updated Jun 28, 2024 Related Terms
      Humans in Space Explore More
      2 min read Unity in Orbit: Astronauts Soar with Pride Aboard Station 
      Article 3 days ago 5 min read Six Adapters for Crewed Artemis Flights Tested, Built at NASA Marshall
      Article 3 days ago 5 min read Lakita Lowe: Leading Space Commercialization Innovations and Fostering STEM Engagement 
      Article 2 weeks ago Keep Exploring Discover Related Topics
      Missions
      Humans in Space
      Climate Change
      Solar System
      View the full article
  • Check out these Videos

×
×
  • Create New...