AstronomyTentative

Comet 103P/Hartley 2 perihelion

expected 2030

expected 2030

—hype

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    Comet 103P/Hartley 2 perihelion is expected 2030. The exact day has not been announced yet.

    Comet 103P/Hartley 2 reaches perihelion, its closest point to the Sun at about 1.06 au, in 2030. Flown past by NASA's EPOXI mission in 2010, Hartley 2 comes back about every 6.5 years. The date is an estimate until JPL publishes an orbit solution for this return; courtesy NASA/JPL-Caltech (SBDB).

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    Computed astronomy

    Last verified Sep 10, 2026

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