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Sirius and color twinkling : Svarichevsky Mikhail
See Sirius, the brightest star in the night sky
Did you know? Sirius
Sirius - Wikipedia
Sirius - Wikipedia
Starwatch: wildly twinkling Sirius outshines the sun, Science
The Sun, Outer Wilds Wiki
Sirius
Why Does Sirius Twinkle? - Universe Today
Optics
Serious Stargazing: Spot Bright Star Sirius This Week