The Sun
Our local G-type main sequence star
The Sun is a 4.6-billion-year-old yellow dwarf star at the center of our solar system. It holds 99.86% of the system's mass and fuses 600 million tons of hydrogen into helium every second.
Image: NASA / SDO
Vital statistics
Type
G2V Yellow Dwarf
Surface Temp
5,500 °C
Core Temp
15 million °C
Diameter
1.39 million km
Age
~4.6 billion years
Distance from Earth
149.6 million km
Did you know
Light from the Sun takes 8 minutes 20 seconds to reach Earth.
Fact 01
1.3 million Earths could fit inside the Sun.
Fact 02
The Sun will become a red giant in about 5 billion years.
Fact 03
Research & publications
Jump straight into peer-reviewed papers, preprints and authoritative references for The Sun.
arXiv (preprints)
Open-access preprints in physics & astrophysics.
NASA ADS
The definitive bibliographic database for astronomy.
Google Scholar
Cross-publisher academic search.
Nature
Peer-reviewed articles in Nature & sister journals.
Wikipedia
Encyclopedic overview & onward references.
Tip: ask the Research AI for a curated reading list → /research
