- Spaghetti Western (Wikipedia)
The spaghetti Western is a broad subgenre of Western films produced in Europe. It emerged in the mid-1960s in the wake of Sergio Leone’s filmmaking style and international box-office success. The term was used by foreign critics because most of these Westerns were produced and directed by Italians.
- Apparent magnitude (Wikipedia)
Apparent magnitude (m) is a measure of the brightness of a star or other astronomical object. An object’s apparent magnitude depends on its intrinsic luminosity, its distance, and any extinction of the object’s light caused by interstellar dust along the line of sight to the observer.