Assertion: newtonian telescope's design | /r/HasProperty | popular
Facets:
value: very
type: DEGREE
value: with telescope manufacturers
type: OTHER
Source sentences:
text: While the Refractor and Newtonian designs are popular, there are a number of others available to the amateur astronomer.
text: This design is very popular thanks to its ease of use and large aperture for the price.
text: The Newtonian design is very popular, because it is simple to make and you get the most aperture per dollar.
text: The last two designs are popular with telescope manufacturers because they are compact and use simple spherical optics.