TEROPONG BINTANG PORTABLE

Galaxies
Galaxies are massive systems of stars held together by gravity. They can be alone, but are mostly found in clusters. One galaxy, the Andromeda galaxy (M31), can be seen with the naked eye. In the Southern Hemisphere, the Large and Small Magellanic Clouds are satellite galaxies that orbit our galaxy, the Milky Way. Galaxies come in many shapes and sizes:
spiral (M31 in Andromeda)
elliptical (M87 in Virgo)
barred, spiral (NGC 1530 in Camelopardalis)
irregular (the Magellanic Clouds, M82 in Ursa Major) In a small telescope like mine, galaxies appear as faint, fuzzy patches. I can see M31 in Andromeda as an angled disc. To see fine detail in galaxies, including lanes of dust across them, you need a large aperture (8 to 10 inches or greater) telescope. Dark skies are essential for observing most galaxies. Like nebulae, galaxies are a favorite target for astrophotographers.