Astronomers have found that the star Kepler 11145123 is the closest to a perfectly round sphere ever measured, using NASA’s Kepler telescope and asteroseismology. The star is 5,000 light-years away and has a diameter of 1.86 million miles. It is named after 17th-century astronomer Johannes Kepler. Astronomers from the Max Planck Institute for Solar System […]
Spherical astronomy studies extraterrestrial bodies visible from Earth, using the celestial sphere to describe their positions. It was important to ancient cultures and used for navigation. The telescope allowed for new discoveries, but measurements were still based on spherical astronomy until the 20th century. Today, it is still used for observations made from Earth’s surface. […]
Spherical aberration is a visual effect caused by light distortion passing through a spherical lens, degrading contrast and blurring details. It can be corrected by reducing aperture size or adjusting light waves. Correct calculations are necessary for correction. Special filters can create special effects. A spherical aberration is a visual effect caused by the distortion […]
