Discover published sets by community

Uses lenses to bend light to a focus; Advantages: Simple design, stable image quality, no central obstruction.

Utilizes a primary mirror to reflect light to a focus; Advantages: Better for larger apertures, no chromatic aberration, easier to maintain.

Combination of lenses and mirrors that fold the light path; Advantages: Compact size, sealed tube reduces image degradation, versatile for both visual and photographic use.

Collects radio waves using a large parabolic antenna; Advantages: Can observe the sky day and night, can detect non-visible celestial objects, contributes to the understanding of the universe through different spectrum.

Specifically designed to observe the Sun; Advantages: Can filter out large amounts of sunlight for safe observation, specialized for studying solar phenomena, can use adaptive optics to correct for atmospheric effects.

Operates outside the Earth's atmosphere; Advantages: Not affected by atmospheric distortion, can observe in wavelengths blocked by the atmosphere, provides the clearest possible image.

A type of alt-azimuth mounted Newtonian reflector; Advantages: Portable and user-friendly, inexpensive to make, suitable for amateurs and 'sidewalk' astronomy.

Employs a spherical mirror and a correcting lens; Advantages: Wide field of view, minimal optical aberrations, well-suited for large-field photographic surveys.

Features a secondary mirror that reflects the light back through a hole in the primary mirror; Advantages: Provides an upright image, greater magnification capabilities, lesser spherical aberration.