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20 cards

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  • 210 Isabella

    Main-belt asteroid.

  • NGC 2129

    Open cluster in the constellation Gemini.

  • SpaceX CRS-9

    2016 American resupply spaceflight to the ISS.

  • Pioneer 11

    First spacecraft to visit Saturn (1973–1995).

  • Eclipse

    Astronomical event where one body is hidden by another.

  • Chandra Deep Field South

    Astronomical survey in Fornax.

  • Pole star

    Visible star that is nearly aligned with Earth's axis of rotation.

  • Xi Boötis

    Star in the constellation Boötes.

  • Near-Earth object

    Small Solar System body with an orbit that can bring it close to Earth.

  • Psi3 Piscium

    Star in the constellation Pisces.

  • Mesosphere

    Layer of the atmosphere directly above the stratosphere and below the thermosphere.

  • Montes Apenninus

    Mountain range on the Moon.

  • Delta1 Tauri

    Binary star in the constellation Taurus.

  • Byrd (lunar crater)

    Crater on the Moon.

  • Upsilon2 Cassiopeiae

    Star in the constellation Cassiopeia.

  • NGC 4100

    Galaxy in the constellation Ursa Major.

  • 5th Space Launch Squadron

    Military unit.

  • NGC 5470

    Spiral galaxy in the constellation Virgo.

  • Dione (moon)

    Moon of Saturn.

  • 55 Cancri Ad

    Extrasolar planet in the constellation Cancer.