Best Refractor Telescopes - With Up to 100 mm (Aperture)

The main considerations when selecting a telescope are the aperture level and focal length. A larger aperture enables one to see far objects with less light. However, the bigger the aperture, the bigger the telescope, which limits its portability. The focal length impacts the viewing distance. Another important consideration is the type of telescope (reflector, refractor, or catadioptric), which determines whether it is compatible for close and bright objects (as the moon) or for long-distance stars.

The main considerations when selecting a telescope are the aperture level and focal length. A larger aperture enables one to see far objects with less light. However, the bigger the aperture, the bigger the telescope, which limits its portability. The focal length impacts the viewing distance. Another important consideration is the type of telescope (reflector, refractor, or catadioptric), which determines whether it is compatible for close and bright objects (as the moon) or for long-distance stars.

Refractor are for observing larger and brighter objects. They are the best choice for the moon and large planet stargazing. They are low maintenance, because the sealed tube prevents dust from entering. However, they can suffer from some chromatic aberrations (which is fixable), and they are generally more expensive and heavier.

Refractor are for observing larger and brighter objects. They are the best choice for the moon and large planet stargazing. They are low maintenance, because the sealed tube prevents dust from entering. However, they can suffer from some chromatic aberrations (which is fixable), and they are generally more expensive and heavier. Read More

Telescopes with an aperture of 100mm (4 inches) or less are for beginners who want a small size telescope for stargazing (a minimum of 70mm aperture is suggested). For observing galaxies beyond our Milky Way, you will have to be in dark locations. You may see Saturn’s Rings but not separated from the planet ball.

Telescopes with an aperture of 100mm (4 inches) or less are for beginners who want a small size telescope for stargazing (a minimum of 70mm aperture is suggested). For observing galaxies beyond our Milky Way, you will have to be in dark locations. You may see Saturn’s Rings but not separated from the planet ball. Read Less