Question

Please help!! what is the life cycle in order, of the Sirius star?
IN A HURRY!!!

Answer 1

From Sirius B's mass and temperature (25,000 kelvins), the astronomers estimate the star became a white dwarf around 124 million years ago. Thus, the star shone as a main-sequence star and then a red giant for 101 to 126 million years — the expected lifetime of a star born with about 5 solar masses.

Step-by-step explanation:

Answer 2

From Sirius B's mass and temperature (25,000 kelvins), the astronomers estimate the star became a white dwarf around 124 million years ago. Thus, the star shone as a main-sequence star and then a red giant for 101 to 126 million years — the expected lifetime of a star born with about 5 solar masses.