19 February 2026
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Latest News
  • [ 26 January 2026 ] Dr Allan Chapman (1946-2026) News
  • [ 16 January 2026 ] Potentially bright ‘sungrazing’ comet discovered News
  • [ 17 December 2025 ] Thank you from the editor News
  • [ 25 October 2025 ] Hubble revisits a cosmic yardstick News
  • [ 21 October 2025 ] Europe’s planet hunting spacecraft complete and ready for final testing News
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Jovian

Observing

Jupiter’s 9 May opposition and a month of Jovian events visible from the UK

1 May 2018 Ade Ashford

With the opposition of Jupiter occurring on 9 May, now is the time to ensure that your telescope is clean and collimated (aligned) to deliver the sharpest images of the solar system’s largest planet at its best. We tell you when and how to view Jupiter’s Great Red Spot and a wealth of Galilean moon phenomena throughout May 2018.

Observing

Jupiter’s moon dance and shadow play to delight observers

3 December 2014 Ade Ashford

The orbits of Jupiter’s large Galilean moons Io, Europa, Ganymede and Callisto are presently almost edge-on to our line of sight, causing the moons to regularly eclipse and occult each other. Multiple shadow transits are also on view!

Astronomy Now NewsAlert

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News Headlines

  • Dr Allan Chapman (1946-2026)
    26 January 2026
  • Potentially bright ‘sungrazing’ comet discovered
    16 January 2026
  • Thank you from the editor
    17 December 2025
  • Hubble revisits a cosmic yardstick
    25 October 2025
  • Europe’s planet hunting spacecraft complete and ready for final testing
    21 October 2025

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Astronomy Now