The hub occupies one galaxy, two asteroids

Image: One galaxy, two asteroids

Credit: ESA / Hubble & NASA; J.. Law (McAllister College)

At first glance, this image of the NASA / ESA Hubble Space Telescope depicts the sparkling star AGC111977, a dwarf galaxy located 15 million light-years away and visible in the lower left of the lower image. Other galaxies appear on the frame, along with the stars of the previous planet, from our own galaxy, Deer Road.

After a closer inspection, he realizes something else that is closer to home. Near the lower right corner of the frame, two elongated lines are clearly visible: the asteroid paths მცირე small rocky bodies in our solar system მათი intersect in their ways in the foreground of the stars and galaxies that Hubble observed.

The image combines observations made on November 16, 2012 with Hubble’s ACS instrument, using two different filters (606 nm, shown in blue, and 814 nm, shown in red). During the observations, the asteroids moved relative to the Hubble, with both paths subsequently depicted in each filter, and therefore visible in red and part in blue.

The two asteroids are located at different distances from us, so they don’t actually collide as their connecting currents may be. They were confirmed by Citizen Scholars Sovan Acharya, Graham Aitken, Claude Cornen, Abe Hoeksra and Edmund Peroz, some of the volunteers who viewed images from the iconic space telescope in search of rocky interlocks as part of the Hubble Asteroid Project Hunting Project. .

A year ago, on International Asteroid Day 2019, the Hubble Asteroid Hunter is a collaboration between ESA and Zooniverse that challenges members of the public to identify the asteroids that have been protected by the Hubble Space Telescope. Since then, 9,000 volunteers around the world have donated 2 million classifications to 140,000 composite Hubble images, gaining 1,500 asteroid trails – about a hundred images.

In the first phase of the project, volunteers could explore a collection of archival Hubble images where ESASky’s solar system pipeline calculations, ESA’s astronomy discovery portal, noted that the asteroid might have crossed the field of vision of the space telescope. Observations. The large number of volunteers and enthusiasts told the team to expand the project, including more pictures of the sky collected over the years by Hubble.

In addition to asteroids, volunteers also determined the paths left by satellites in orbit higher than Hubble's, intriguing cases of gravitational lensing, and ring-shaped features that occur when galaxies collide.

The project has seen an increase in participation over the past few months as many people around the world have been at home due to the COVID-19 pandemic, which has led to a threefold increase in the number of classifications. Thanks to the constant efforts of volunteers, the scientific project of these citizens has now been completed and only infrared images remain to be tested.

Meanwhile, the team is trying to name the asteroids that were discovered as part of the project, including two images depicted in this image, that they might match the asteroids known for their small aspects, and calculate their distances from us. ᲐFollow me!

Image: Anterior asteroid passing through Crab Nebula

European Space Agency

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Image: Hubble occupies one galaxy, two asteroids (July 3, 2020)
Read July 5, 2020

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