newtonian telescope Synonyms
No Synonyms and anytonyms found
newtonian telescope Meaning
newtonian telescope (n)
reflecting telescope in which the image is viewed through an eyepiece perpendicular to main axis
newtonian telescope Sentence Examples
- Newtonian telescopes, invented by Sir Isaac Newton, revolutionized astronomy by removing chromatic aberration from reflecting telescopes.
- The primary mirror of a Newtonian telescope is parabolic in shape, reflecting light rays parallel to the optical axis to a single point.
- Unlike earlier reflecting telescopes, Newtonian telescopes use a flat secondary mirror to redirect the light rays towards the observer's eyepiece.
- The secondary mirror in a Newtonian telescope is typically mounted at a 45-degree angle to the optical axis, blocking a small portion of the primary mirror's light.
- Newtonian telescopes are relatively inexpensive to manufacture, making them a popular choice for amateur astronomers.
- The first known Newtonian telescope was built by Newton himself in 1668, using a metal speculum as the primary mirror.
- Newtonian telescopes were widely used in the 18th and 19th centuries, leading to significant astronomical discoveries.
- Modern Newtonian telescopes often use silvered glass or aluminized mirrors to reflect light, providing better reflectivity and durability.
- Newtonian telescopes have a relatively large field of view compared to other telescope designs, making them suitable for wide-field observations.
- Despite their simplicity, Newtonian telescopes continue to be used by professional and amateur astronomers alike, providing high-quality images at a reasonable cost.
FAQs About the word newtonian telescope
reflecting telescope in which the image is viewed through an eyepiece perpendicular to main axis
No synonyms found.
No antonyms found.
Newtonian telescopes, invented by Sir Isaac Newton, revolutionized astronomy by removing chromatic aberration from reflecting telescopes.
The primary mirror of a Newtonian telescope is parabolic in shape, reflecting light rays parallel to the optical axis to a single point.
Unlike earlier reflecting telescopes, Newtonian telescopes use a flat secondary mirror to redirect the light rays towards the observer's eyepiece.
The secondary mirror in a Newtonian telescope is typically mounted at a 45-degree angle to the optical axis, blocking a small portion of the primary mirror's light.
