Moving or variable-temperature air above or inside the telescope which distorts the image.
They only look: 'pointy' due to; atmospheric distortion. Stars are actually a type of 'oblate' spheroid.
Because there is less atmospheric distortion at higher altitudes, and light pollution is avoided.
Stars appear pointy due to atmospheric distortion when viewed from Earth. The Earth's atmosphere causes light from stars to bend and twinkle, making them seem to twinkle and appear pointy. In reality, stars are spherical in shape like our own sun.
Telescopes located in high-altitude locations such as Mauna Kea in Hawaii or the Atacama Desert in Chile are best suited for observing celestial objects with minimal atmospheric interference. Telescopes equipped with adaptive optics technology can also help counteract atmospheric distortion to provide clearer images.
super distortion
The Hubble Space Telescope is located above Earth's atmosphere, which eliminates the distortion caused by atmospheric turbulence. This allows for sharper and clearer images with higher resolution compared to ground-based telescopes. Additionally, Hubble can observe wavelengths of light that are blocked by the atmosphere, providing a more comprehensive view of the universe.
A high fidelity amplifier allows a stereo to push more wattage to a set of speakers. This reduces distortion and creates a cleaner sound from the stereo.
One way to reduce distortion caused by converting three dimensions into two dimensions is to use a map projection that preserves specific properties, such as shape, area, direction, or distance. For example, the Mercator projection preserves direction, while the Equal Area projection preserves area. Each projection has its own trade-offs in terms of distortion, so it's important to select the one that best suits the purpose of the map.
Ideal weather conditions for stargazing include clear skies with minimal light pollution, low humidity to reduce atmospheric distortion, and stable atmospheric conditions to minimize twinkling of stars. Additionally, cooler temperatures can help improve visibility by reducing heat distortion.
The most famous, meaning classic, brands that make distortion pedals are BOSS, Ibanez, EHX and ProCo. This does not mean that they are the best. There are a bunch of lesser known distortion pedals that are just as good.
Atmospheric pressure decreases as you move away from the surface of the Earth. This is because the weight of the air above you decreases with higher altitudes, resulting in lower atmospheric pressure.