Tuesday 2nd December 2025

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Minimum brightness times for Algol Minima

• Here’s a list of upcoming minimum brightness times for Algol (Beta Persei) that are well-placed for UK observers in December 2025.
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• It’s a fantastic opportunity for naked-eye observation or astrophotography, especially on the evening and overnight dates.
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• The bright variable Star Beta Persei (Algol) reaches minimum brightness.
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• This variable star in Perseus varies from its brightest at magnitude +2.1, dropping to +3.4.
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• Even when dimmed, Algol is still visible to the naked eye.
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• Read more – Algol
  – How to find Algol in Perseus?
  – Deaf astronomer John Goodricke
  

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Back to 2025 December Highlights
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