Illustrated · 1 min
Spiral galaxies are complex objects and have several components: a disk, a bulge, and a halo. The disk contains gas, dust, and young stars in its spiral arms. The dense bulge in the center of the disk contains mostly old stars and no gas or dust. The halo is the home of a very few, scattered stars and globular clusters. The halo is also the home of dark matter in spiral galaxies. SOME EXAMPLES OF SPIRAL GALAXIES ARE :
- the pinwheel galaxy
- the milky way galaxy(barrel spiral galaxy)
- NGC 428 is a barred spiral galaxy, located approximately 48 million light-years away from Earth in the constellation of Cetus.
The milky way galaxy is also a barrel spiral galaxy.
Some images of the galaxies are given below :
UGC 12158
NGC 6348
the pinwheel galaxy
the milky way galaxy