29 March 2023
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  • [ 29 March 2023 ] Supermassive black holes not impressive enough? Try the ultramassive version News
  • [ 28 March 2023 ] James Webb’s infrared vision lets astronomers take an exoplanet’s temperature News
  • [ 27 March 2023 ] NASA gearing up for OSIRIS-REx asteroid sample recovery News
  • [ 23 March 2023 ] A simpler, more mundane explanation for ‘Oumuamua’s strange behaviour News
  • [ 22 March 2023 ] Japanese Hakuto-R moon lander slips into lunar orbit News
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star diagonal

Equipment

Baader Planetarium flip mirror II Star Diagonal

3 June 2022 Steve Ringwood

This latest flip-mirror star diagonal from Baader Planetarium offers high-quality views for imagers who want to use a guiding eyepiece, as well as a revolutionary third port for off-axis autoguiding, writes Steve Ringwood.

Equipment

Explore Scientific 2″ Push-fit dielectric diagonal

12 March 2016 Steve Ringwood

Steve Ringwood casts his expert eye over and into a 2-inch push-fit dielectric mirror diagonal for refractors and catadioptrics from Explore Scientific. This star diagonal delivers optical fidelity since it has a mirror that has been honed to 1/12th wave and reflects 99 percent of incoming light to the eyepiece.

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News Headlines

  • Supermassive black holes not impressive enough? Try the ultramassive version
    29 March 2023
  • James Webb’s infrared vision lets astronomers take an exoplanet’s temperature
    28 March 2023
  • NASA gearing up for OSIRIS-REx asteroid sample recovery
    27 March 2023
  • A simpler, more mundane explanation for ‘Oumuamua’s strange behaviour
    23 March 2023
  • Japanese Hakuto-R moon lander slips into lunar orbit
    22 March 2023
  • Home
  • The Magazine
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      • March last issue
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    • DSLR Calc
  • Reviews
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  • Spaceflight Now
  • Shop
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    • Ask Astronomy Now
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    • Advertising

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