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The NASA Hubble Telescope captures the best images from our first interstellar comet




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JEWITT ET AL / DANIEL BAMBERGER, HST

Astronomers used the Hubble Space Telescope at NAS Capture new images of Comet 2I / Borisov, the second confirmed interstellar object to be discovered in our solar system, in search of some of its biggest secrets.

Led by David Jitt of UCLA, team has used the Hubble force to depict the comet discovered at the end of August 2017 while p The photos were taken on the night of Saturday, October 12th, in the first four of the seven orbits of the telescope allocated for this particular observation. The object is quite clearly a comet, with a considerable amount of dust and gas separating from its surface. When it approaches the Sun, we expect th is activity to increase, reaching a maximum of December & nbsp; 7 when making its closest approach to the Sun about twice the Earth-Sun distance or two AUs (astronomical units).

However, Hewitt and his team will use these images to test the size of the comet's nucleus, which is the solid core around which a dust and gas coma swirls. Currently, comet size estimates range from about 700 meters to several kilometers, and getting a handle on it can tell us more about how these objects form and evolve.

Comet 2I / Borisov is known to originate from another solar energy system based on its trajectory through our own solar system, which is unrelated to our Sun. Although some attempt has been made to establish its origin, suggesting a system called Kruger-60 at about 13 light-years away, the complexity associated with mapping this trajectory over time means that there may never be to know for sure.

But the study of the object can give us our best insight into the extraterrestrial solar system. Our first interstellar visitor similar to the asteroid "Oumuamua" was spotted at the end of 2017 as it exits the solar system and has given us only weeks to observe it. This, coupled with his lesser activity, means that many of his secrets remain undisclosed.

Hewitt et al / HST

Comet 2I / Borisov, on the other hand, will peak in less than two months, while it is expected to remain visible in our night sky for about a year. In addition to learning its size, shape and rotation speed, astronomers also hope to understand what it's made of – including looking for how much comet comets have water, if any. Some rare comets in our solar system are & nbsp; unusually rich in carbon monoxide for example.

At the moment, the comet looks just like any other comet in our own solar system, in itself a fascinating discovery that may suggest that other systems are quite similar. Comets, the icy remnants of the formation of a planetary system, have long been thought to be potential carriers of water and even the building blocks of young protoplanets in a star system.

Thus, Comet 2I / Borisov represents an extremely exciting opportunity for astronomers and non-astronomers alike. This will give us our biggest look at the extraterrestrial solar system, and when combined with continuous exoplanet exploration, can tell us more about whether worlds like Earth are rare or common in the universe.

These latest Hubble images give us a fascinating new picture of this interstellar wonder. As many of the world's most powerful telescopes also train their eyes in his direction and his blinding moment in the light of the Sun's spotlights, his secrets will remain unknown for a long time.

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JEWITT ET AL / DANIEL BAMBERGER, HST

Astronomers used NASA's Hubble Space Telescope to capture new comet / I images of the comet Borisov, the second confirmed interstellar object to be found in our solar system, in search of some of its biggest secrets. , found at the end of August 2017 while making our way to the Solar System The photos were taken on the night of Saturday, October 12th, in the first four of the seven orbits of the telescope allocated for this particular observation.

The images confirm many of the details we know so far. a significant amount of dust and gas are released from its surface. As we approach the Sun, we expect this activity to increase, reaching its peak on December 7, when it approaches its closest approach to the Sun about twice the Earth-Sun distance or two AU (astronomer units).

However, Jewith and his team will use these images to test the size of the comet's nucleus, which is the solid core around which a dust and gas coma swirls. Currently, comet size estimates range from about 700 meters to several kilometers, and getting a handle on it can tell us more about how these objects form and evolve.

Comet 2I / Borisov is known to originate from another solar energy system based on its trajectory through our own solar system, which is unrelated to our Sun. Although some attempt has been made to establish its origin, suggesting a system called the Kruger-60 at about 13 light-years away, the complexity associated with mapping this trajectory over time means that we may never know for sure.

But the study of an object could give us our best concept of an extraterrestrial solar system. Our first interstellar asteroid-like visitor & # 39; Oumuamua was spotted at the end of 2017 as we exit the solar system, giving us only weeks to watch. This, coupled with his lesser activity, means that many of his secrets remain undisclosed.

Hewitt et al / HST

Comet 2I / Borisov, on the other hand, will peak in less than two months, while it is expected to remain visible in our night sky for about a year. In addition to learning its size, shape and rotation speed, astronomers also hope to understand what it's made of – including looking for how much comet comets have water, if any. Some rare comets in our solar system are unusually rich in carbon monoxide, for example

At the moment the comet looks like any other comet in our own solar system, in itself a fascinating discovery that may suggest that other systems are quite similar The comets, the icy remnants of the formation of a planetary system, have long been thought to be potential carriers of water and even the building blocks of young protoplanets in a star system.

Thus, Comet 2I / Borisov represents an extremely exciting opportunity for astronomers and non-astronomers alike. This will give us our biggest look at the extraterrestrial solar system, and when combined with continuous exoplanet exploration, can tell us more about whether worlds like Earth are rare or common in the universe.

These latest Hubble images give us a fascinating new picture of this interstellar wonder. As many of the world's most powerful telescopes also train their eyes in his direction, and his blinding moment in the light of the Sun's projectors is not very far away, his secrets will not remain unknown for much longer.


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