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Community photo entitled  by Dr Ski on 03/22/2020 at Valencia Observatory Garden, Philippines

On 03/22/2020 04:15 pm by Dr Ski | Valencia Observatory Garden, Philippines

Growth cycle of a sunflower.
Starting from the lower left and spiraling clockwise to the center. Like a Fibonacci sequence 😊.
Actually, the sunflower is a prime example of the Golden Ratio in nature.
Has EarthSky published an article on the Golden Ratio? It's fascinating. So many examples in Nature and Astronomy!

Canon EOS M100
72mm, f6. 3 + 16mm Macro extension

Images collaged.