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Comet 3I/ATLAS tracker: How to follow interstellar object passing through Solar System live?

Comet 3I/ATLAS will be closest to the Sun on October 29 and will be observable through telescopes. Here is how you can track it.

Published on: Oct 29, 2025 06:03 pm IST
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An interstellar comet is set to appear in the skies. A comet named 3I/ATLAS would be closest in its journey to our Sun on October 30, when it will be around 130 million miles from the center of our Solar System, NASA’s website informs.

Comet 3I/ATLAS tracker live: How to follow the interstellar visitor passing through our Solar System(AP)

3I/ATLAS is only the third-known object from outside our solar system to have reached our celestial neighborhood. The ‘I’ in its name denotes ‘Interstellar’, indicating its origins from beyond our Sun’s Solar System. ‘ATLAS’ is the name of the body that discovered this celestial object, and stands for ‘Asteroid Terrestrial-impact Last Alert System’, an organization funded by NASA, the agency’s website informs.

Thankfully, 3I/ATLAS poses no danger to our planet, as at its closest, it would still be 170 million miles away from it. Astronomers are studying the comet for its various properties. The realisation that it does not have a closed orbital loop around the Sun led to the discovery that it was an object from a different Solar System, NASA informs.

3I/ATLAS tracker

A YouTube channel called WN Space is also providing real-time updates on the position and the journey of the comet. This YouTube simulation is merely to follow the track of the comet and not for minute details.

Also read: 3I/ATLAS update: Harvard scientist warns Manhattan-sized comet could be rare ‘black swan event’

Observing 3I/ATLAST

It will not be possible to view the comet from Earth without a telescope, Gulf News reports. Today, the comet would have to be observed with a telescope having a 6-12 inch aperture. The best time to view the phenomenon would be in early pre-Sunrise hours or the time immediately after Sunset.

The interstellar visitor is about 14-20 kilometers in diameter. Today, at 11:36 UTC, it would reach perihelion (closest approach to the Sun). It would be visible with telescopes at that time.

FAQs:

What is 3I/ATLAS?

It is a comet that originated outside our Solar System and will be closest to our Sun today.

How big is 3I/ATLAST?

It is 14-20 kilometers in diameter.

Does it pose any danger to Earth?

No, the comet is too far away from our planet to be of any concern.

 
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HT US Desk

The Hindustan Times’ US desk covers the latest in entertainment and digital culture. From Hollywood developments and pop culture moments to viral trends and internet conversations, the team reports with clarity and accuracy. Every story is crafted to inform, engage, and reflect what’s capturing attention across America.

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