NASA:
The
Sun rotates in the same direction as Earth. The Carrington Rotations are named
for Richard Carrington, an astronomer who first noted that sunspots rotate
every 27.28 days.
The
Milky Way Galaxy contains about 100 billion stars. All of these stars, and the
gas and dust between them, are rotating about a galactic center.
Then
Sun is located in the outer part of the galaxy, at a distance of 2.7 × 1017 km (1.7 × 1017
mi) from the center. The Sun, which is moving around the center at a velocity
of 220 km/s (140 mi/s), takes 250 million years to complete one trip around the
center of the galaxy. The Sun has circled the galaxy more than 18 times during
its 4.6-billion-year lifetime.
NASA:
The
Sun appears to have been active for 4.6 billion years and has enough fuel to go
on for another five billion years or so.
The
Sun is destined to perish as a white dwarf.