International astronomers confirmed the passage of the interstellar object called 3I/Atlas through the solar system. The celestial body, initially detected on November 5, 2025, has a hyperbolic speed of more than 40 km/s. Observations by the Atlas telescope in Hawaii identified the object as the third known interstellar object.
The trajectory indicates origins outside the solar system, with a perihelion estimated at 1.2 astronomical units. Preliminary data show a composition rich in heavy metals. The object measures approximately 800 meters in diameter.
- Current speed: 42 km/s relative to the Sun
- Distance from Earth: 2.8 astronomical units on November 6
- Orbital inclination: 120 degrees in relation to the ecliptic
- Apparent brightness: magnitude 19.5
Researchers adjust star formation models based on observed characteristics.
Trajectory and speed recorded
The 3I/Atlas object follows a class 1 hyperbolic path. Records indicate non-gravitational acceleration of 0.0001 m/s².
Observatories in Chile andHawaii captured sequential images. The speed exceeds the solar exhaust by 15 km/s.
Chemical composition identified
Spectroscopy reveals the presence of carbon monoxide and hydrogen cyanide. Proportion of deuterium exceeds solar standards by 25 times.
Reflected light analysis shows rocky surface with metallic traces. The absence of a gaseous coma differentiates the object from typical comets.
Hubble telescope data complements ground-based observations. Composition suggests origin in young stellar system.
Observations from ground-based telescopes
Telescopes in the Atacama Desert recorded variations in brightness every 7 hours. Rotation period estimated at 14 Earth hours.
Stations in the southern hemisphere maintain continuous monitoring. Networks of robotic telescopes update position every 30 minutes.
Origin and scientific implications
3I/Atlas probably came from the direction of the Pegasus constellation. Models indicate ejection of binary system millions of years ago.
Scientists compare it with ‘Oumuamua and Borisov, previous objects. Differences in cylindrical shape suggest distinct formation processes.
Studies exclude artificial origin based on the absence of modulated signals. Radar analyzes do not detect regular structures.
Continuous monitoring performed
Space agencies coordinate tracking until December 2025. The object will leave the solar system towards the constellation Taurus.
Amateur observatories contribute long exposure images. Online platforms compile data in real time.
Teams prepare virtual interception missions via existing probes.
Detection technical details
The Atlas System operates with four 0.5-meter telescopes in Hawaii and Chile. Artificial intelligence algorithms process 1 million images per night.
The 3I/Atlas was identified among 500 thousand mobile objects detected. Confirmation occurred within 12 hours via international networks.
Refined orbital parameters show eccentricity of 3.2. High inclination facilitates observations of the southern hemisphere.
Comparisons with previous objects
Unlike 1I/’Oumuamua, 3I/Atlas displays a faint dust tail. Similarity to 2I/Borisov includes release of gases.
Intermediate size positions the object between an asteroid and a comet. Speed greater than Borisov by 10 km/s.
Updated orbital data
The hyperbolic orbit confirms definitive interstellar status. Entry point into the solar system occurred in 2024.
Projections indicate permanent exit in 2026. Maximum distance from the Sun reached in January 2026.
Recently observed activity
Brightness variations have increased by 20% since November 5th. Release of volatile material occurs in bursts.
Telescopes record emission spectrum at ultraviolet lengths. Intensity varies with object rotation.