Sirius, a binary star.
Sirius A: star visible to the naked eye is a white star whose mass is 2.1 solar masses.
Age estimated: at around 250 million years.
Surface temperature is about 9,900 K and its diameter about 1,711 times the solar diameter.
Sirius B: a white dwarf (below, to the left of Sirius A)
Complete Pdf N°7 (2019) by my website: Tree data structure Tab.
Please enlarge
Abstract updates:
As I was recontacted about my abstract and not being scientifically focused, I was directed to test my work in the right place to learn the practice, step by step.
Here it is: SYMPOSIUM E2
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