To ancient astronomers, Theta Eridani was brighter for 1,000 years—now we know why
There's a bit of a historical mystery surrounding the star Theta Eridani. Ptolemy in the second century A.D. and al-Sufi in A.D. 964 both recorded Theta Eridani as one of the 13 brightest stars in…
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To ancient astronomers, Theta Eridani was brighter for 1,000 years—now we know why
There's a bit of a historical mystery surrounding the star Theta Eridani. Ptolemy in the second century A.D. and al-Sufi in A.D. 964 both re
Ancient Star Theta Eridani's Fading Explained by Stellar Evolution
A newly proposed model suggests Theta Eridani underwent a brief, thousand-year brightening due to a helium flash or similar event, reconcili
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L'avís dels oftalmòlegs davant l'eclipsi solar del 12 d'agost
Alerten dels riscos d'observar el fenomen a través de telescopis, càmeres, radiografies o vidres de soldador
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