Largest Stars in the Milky Way

The largest known stars in the Milky Way galaxy, ranked by solar radius (R☉). VY Canis Majoris, VX Sagittarii, and other red supergiants dwarf our Sun by over 1,000 times.

Data

#	Star	Radius (R☉)	Notes
18	KW Sagittarii	1,009	Red supergiant
17	VV Cephei A	1,015	Well-known eclipsing binary red supergiant
16	MY Cephei	1,028	Red supergiant
15	BC Cygni	1,031	Red supergiant in Cygnus
14	KY Cygni	1,032	Red supergiant in Cygnus
13	SU Persei	1,044	Red supergiant in Perseus
12	RT Carinae	1,090	Red supergiant in Carina
11	RW Cephei	1,100	K-type hypergiant; dimming event in 2022
10	RW Cygni	1,103	Red supergiant in Cygnus
9	V354 Cephei	1,245	Red supergiant in Cepheus
8	PZ Cassiopeiae	1,300	Red supergiant in Cassiopeia
7	S Persei	1,364	Red hypergiant in Perseus
6	RSGC1-F06	1,382	Red supergiant in RSGC1 cluster
5	AH Scorpii	1,411	Red supergiant in Scorpius
4	VY Canis Majoris	1,420	Extreme oxygen-rich red hypergiant
3	RSGC1-F04	1,422	Red supergiant in RSGC1 cluster
2	VX Sagittarii	1,500	Heavily pulsating red supergiant
1	RSGC1-F01	1,530	Largest known star in the Milky Way