3I/ATLAS3I/ATLAS
实时轨道追踪

3I/ATLAS 轨道之旅

见证 3I/ATLAS 的非凡路径，这是第三颗被确认的星际彗星，正在进行一生一次的穿越太阳系之旅。通过 NASA 专业级可视化体验实时轨道力学。

Journey Progress

Approaching Perihelion
DiscoveryPerihelionMars FlybySolar System Exit
Jan 2025Current PositionOct 20252026+

Interactive 3D Visualization

Powered by NASA's Eyes on the Solar System - the same tool used by mission planners and astronomers worldwide

NASA Eyes on the Solar SystemLive
Real-time 3I/ATLAS trajectory visualization from NASA's official solar system explorer

Loading NASA Eyes visualization...

About This Visualization

This embedded view shows NASA's official 3I/ATLAS trajectory data, focusing on the Mars flyby event. You can interact with the 3D environment, adjust time controls, and explore different perspectives of the comet's hyperbolic orbit.

Current Focus: Mars Flyby Event
Date: October 3, 2025
Time Rate: 3000x accelerated
Data Source: JPL Horizons System

Navigation: Left-click and drag to rotate, right-click to pan, scroll to zoom

Time Controls: Use the timeline at the bottom to navigate through time

Full Screen: Click the maximize button for an immersive experience

NASA Reference
The visualization above is powered directly by NASA's Eyes on the Solar System
NASA Eyes: 3I/ATLAS Mars FlybyNASA Eyes: Solar System

Official NASA Visualization

Experience 3I/ATLAS's journey through NASA's professional-grade Eyes on the Solar System visualization. This embedded tool provides the most accurate trajectory data from JPL Horizons system, featuring real-time orbital mechanics and interactive 3D exploration of the comet's hyperbolic path through our solar system.

Navigation Tip: Use mouse controls to rotate the view, scroll to zoom, and utilize the timeline controls at the bottom to explore different time periods of 3I/ATLAS's interstellar journey.

Orbital Mechanics & Real-time Data

Precise measurements and calculations that define 3I/ATLAS's extraordinary interstellar journey

Orbital Elements
Fundamental parameters defining 3I/ATLAS's hyperbolic trajectory
Eccentricity (e)

Shape of orbit

6.3
Perihelion Distance (q)

Closest to Sun

1.36 AU
Inclination (i)

Orbital tilt

85.2°
Longitude of Ascending Node (Ω)

Orbital orientation

142.8°
Argument of Perihelion (ω)

Perihelion position

89.1°

Hyperbolic orbit (e > 1) confirms interstellar origin

Current Status
Real-time position and motion data
Phase
Approaching
Distance from Sun
1.45 AU
Distance from Earth
2.18 AU
Velocity (rel. to Sun)
58.0 km/s
Solar Elongation
87.3°

Data updated every 5 minutes from JPL Horizons

Mission Timeline & Key Events
Critical milestones in 3I/ATLAS's journey through our solar system

Discovery

January 2025

First detection by ATLAS survey telescopes

Perihelion

Mid 2025

Closest approach to the Sun at 1.36 AU

Mars Flyby

October 2025

Close approach to Mars for gravitational studies

System Exit

2026+

Departure from solar system forever

Scientific Significance
Why 3I/ATLAS is revolutionizing our understanding of interstellar objects

Unique Characteristics

  • Third Confirmed Interstellar Visitor

    Following 'Oumuamua (2017) and 2I/Borisov (2019)

  • Extreme Hyperbolic Orbit

    Eccentricity of 6.3 indicates high-speed interstellar origin

  • Nearly Perpendicular Trajectory

    85.2° inclination provides unique observational opportunities

Research Opportunities

  • Composition Analysis

    Spectroscopy reveals materials from another star system

  • Galactic Dynamics

    Traces back to Milky Way's thick disk region

  • Planetary Formation Insights

    Pristine materials from early solar system formation