7 stellar facts

1. Our sun is a yellow dwarf star
2. Rigel is between 25,000 and 50,000 brighter than our sun
3. Antares is 27 million times bigger than our sun
4. The nuclear reaction that keeps our sun shining gives a mass loss of 4 million tons a second.
5. The sun will last for another 8,000 million years before becoming a red giant
6. The Pup – a star near Sirius, is so dense that a matchbox full would weigh 50 tons
7. A neutron star (the final stage in a star’s death) has a density equivalent to 20,000 million tons per cubic inch.