Here are the top 10 biggest stars and some key details about them:

1. VY Canis Majoris:

• Classification: Red hypergiant
• Location: Constellation of Canis Major
• Radius: Approximately 1,540 times the radius of the Sun
• Luminosity: Over 300,000 times the luminosity of the Sun
• Notable features: One of the largest known stars in the Milky Way galaxy, nearing the end of its life cycle

2. UY Scuti:

• Classification: Red hypergiant
• Location: Constellation of Scutum
• Radius: Approximately 1,700 times the radius of the Sun
• Luminosity: Over 300,000 times the luminosity of the Sun
• Notable features: Considered one of the largest known stars in the Milky Way galaxy

3. KW Sagittarii:

• Classification: Red hypergiant
• Location: Constellation of Sagittarius
• Radius: Approximately 1,540 times the radius of the Sun
• Luminosity: Over 340,000 times the luminosity of the Sun
• Notable features: One of the most luminous stars known, nearing the end of its life cycle

4. Betelgeuse:

• Classification: Red supergiant
• Location: Constellation of Orion
• Radius: Approximately 950 times the radius of the Sun
• Luminosity: Around 100,000 times the luminosity of the Sun
• Notable features: One of the most well-known red supergiants, known for its irregular brightness changes

5. VV Cephei A:

• Classification: Red hypergiant
• Location: Constellation of Cepheus
• Radius: Approximately 1,480 times the radius of the Sun
• Luminosity: Over 300,000 times the luminosity of the Sun
• Notable features: Part of a binary star system with a smaller companion star

6. RW Cephei:

• Classification: Red hypergiant
• Location: Constellation of Cepheus
• Radius: Approximately 1,650 times the radius of the Sun
• Luminosity: Over 400,000 times the luminosity of the Sun
• Notable features: One of the largest known stars in the Milky Way galaxy

7. NML Cygni:

• Classification: Red hypergiant
• Location: Constellation of Cygnus
• Radius: Approximately 1,650 times the radius of the Sun
• Luminosity: Over 340,000 times the luminosity of the Sun
• Notable features: Considered one of the most luminous stars known

8. VV Cephei B:

• Classification: Blue supergiant
• Location: Constellation of Cepheus
• Radius: Approximately 36 times the radius of the Sun
• Luminosity: Around 30,000 times the luminosity of the Sun
• Notable features: Part of the VV Cephei binary star system, much smaller than its red hypergiant companion

9. Mu Cephei:

• Classification: Red supergiant
• Location: Constellation of Cepheus
• Radius: Approximately 800 times the radius of the Sun
• Luminosity: Around 40,000 times the luminosity of the Sun
• Notable features: Also known as the "Garnet Star", one of the reddest stars visible to the naked eye

10. PZ Cassiopeiae:

• Classification: Red hypergiant
• Location: Constellation of Cassiopeia
• Radius: Approximately 1,420 times the radius of the Sun
• Luminosity: Over 300,000 times the luminosity of the Sun
• Notable features: One of the largest known stars in the Milky Way galaxy