refractor
Lens-based stargazer tool
A refractor is a telescope that uses lenses rather than mirrors to bend light and form images.
The term comes from refraction—the bending of light as it passes through glass.
Refractors were the earliest telescope design and remain popular for certain astronomical observations: a 4-inch refractor, She set up her refractor to view the moon.
Light-focusing curved glass
- prismLight-splitting optical element
- spectrumContinuous range of values
- dispersionScattering across space
- wavelengthSpatial repetition interval
chromatic · aberration · glass · transmission · light · optical · index · medium
Lens you look through
- apertureAdjustable optical inlet
- objectivePurpose or goal
- focal lengthLens-to-convergence-point distance
- achromaticLacking visible hue
doublet · triplet · tube · mount · equatorial · tripod · finder · field of view
Observing celestial bodies
- celestialOf the sky above
- planetsStar-orbiting celestial bodies
- galaxiesGravitationally bound stellar assemblies
- nebulaeInterstellar gas clouds
stars · constellations · observatory · cosmos · astronomer · night sky · comets · eclipses
Corrective lenses worn
- prescriptionMedical dispensing authorization
- correctiveDesigned to remedy flaws
- spectaclesCorrective eyewear worn daily
- ophthalmologyMedical specialty for eyes
optometrist · acuity · myopia · hyperopia · astigmatism · bifocals · lenses · frames
lens
Light-focusing curved glass
- prismLight-splitting optical element
- spectrumContinuous range of values
- dispersionScattering across space
wavelength · chromatic · aberration · glass · transmission · light · optical · index · medium · beam
eyepiece
Lens you look through
- apertureAdjustable optical inlet
- objectivePurpose or goal
- focal lengthLens-to-convergence-point distance
achromatic · doublet · triplet · tube · mount · equatorial · tripod · finder · field of view · resolution
stargazing
Observing celestial bodies
- celestialOf the sky above
- planetsStar-orbiting celestial bodies
- galaxiesGravitationally bound stellar assemblies
nebulae · stars · constellations · observatory · cosmos · astronomer · night sky · comets · eclipses · astrophotography
eyeglasses
Corrective lenses worn
- prescriptionMedical dispensing authorization
- correctiveDesigned to remedy flaws
- spectaclesCorrective eyewear worn daily
ophthalmology · optometrist · acuity · myopia · hyperopia · astigmatism · bifocals · lenses · frames · polycarbonate
- stargazingtelescope, stargazing guides, night sky, stars, constellation
- collectible cardssports cards, trading cards, basketball cards, football cards, baseball card
- telescopesreflector, Newtonian, Gregorian, space telescope, radio telescope
- eye equipmentophthalmoscope, topographer, refractometer, color plates, chin rest
- astronomystars, moon, sun, planet, planets
- observation devicesbinoculars, telescope, microscope, camera, periscope
- double refractionLight splits into two paths
- light refractionBending of waves through media
- refracting telescopeLens-based astronomical instrument
- refractory periodInterval blocking repeated activation
- refractive errorOptical focusing abnormality
refractory, refract, refraction, refracting, refractive, refracts, refractoriness, refractors