3 October 2025
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M3

Observing

Resolving Messier 3’s swarming stars

7 May 2024 Mark Armstrong

Messier 3 in Canes Venatici is right up near the top of the premier league of globular clusters. It has huge appeal for visual observers and imagers alike, making it a great alternative in the late spring sky to the ubiquitous Messier 13.

Observing

Messier 3: observe a great globular

23 May 2022 Mark Armstrong

There are very few deep-sky sights that can equal, let alone surpass, the magnificence of a great globular cluster filling the field of view of a high-power eyepiece, with myriad sparking suns crammed together and all vying for attention.

Observing

Observe a great globular – Messier 3

15 April 2022 Mark Armstrong

Messier 3 (NGC 5272), which shines brightly at magnitude +5.9, is easily seen through 10 × 50 binoculars and is a stunning sight through a telescope.

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News Headlines

  • Nova outburst in Centaurus
    24 September 2025
  • Astronomy Now relaunches digital platform
    12 September 2025
  • Potentially habitable planet TRAPPIST-1e displays tentative evidence for an atmosphere
    8 September 2025
  • Ten-Year Lease Extension Confirmed at Herstmonceux Observatory
    18 August 2025
  • Graphic showing the close conjunction of Jupiter and Venus with other stars and contellations marked on a dark sky, above a horizon with trees in silhouette.
    Venus and Jupiter’s bright morning conjunction
    10 August 2025
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