Komet Atlas 2025

 3I/ATLAS

Tamu antar bintang kita di tahun 2025.

Komet yang diperkirakan umurnya lebih tua dari tata-surya kita.

Meluncur dengan kecepatan 57 sd 68 km/detik.

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The orbit of 3I/ATLAS suggests a pattern of “we want to come close to you, but we don’t want you to observe us.”

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About 3I/ATLAS:

Discovery: It was detected on July 1, 2025, by the ATLAS telescope in Río Hurtado, Chile; confirmed interstellar due to its hyperbolic orbit and high speed (57–68 km/s).

Significance: It is likely the oldest comet ever observed — possibly 7.6–14 billion years old, older than our 4.5-billion-year-old solar system.

Nature: It appeared like an interstellar comet, showing signs of activity including a coma (cloud of dust/ice) and likely a tail as it nears the Sun.

Composition: Rich in water ice and complex organic compounds; has a reddish hue indicating ancient, primordial material.

Size: Estimated nucleus diameter is 10–30 km — larger than previous interstellar objects like 1I/ʻOumuamua and 2I/Borisov.

Trajectory:

Closest to Earth: ~270 million km (no threat).

Closest to Sun: ~210 million km (Oct 29–30, 2025).

Will exit the solar system permanently after perihelion.