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  • More from Australian Sky & Telescope

    Australian Sky & Telescope11 min read
    DAWN Of The Milky Way
    We live in a great galaxy, one that’s far larger and brighter than most others in the cosmos. Abounding with countless stars and surrounded by dozens of satellite galaxies, the Milky Way is a giant barred spiral with a dark matter halo spanning some
    Australian Sky & Telescope3 min read
    Long Time Coming
    EXPLORING THE SOLAR SYSTEM is a long game, with travel times measured in years. And the time from when we first propose a mission to when our spacecraft sits on the launch pad, ready to leave Earth or die trying, is often much longer still. In a way,
    Australian Sky & Telescope8 min read
    One-dimensional Apodising Mask
    Observers use aperture masks to improve the view through a telescope, particularly under unsteady seeing. Such masks tend to fall into one of three categories. The first is off-axis, or stop-down, masks. These reduce the aperture to minimise the blur

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