astronomical instrument
instrument used in astronomy
astronomical clock
clock with special mechanisms and dials to display astronomical information
H-alpha telescope
telescope that observes the Sun at the H-alpha spectra
nocturnal
instrument used to determine the local time based on the relative positions of two or more stars in the night sky
ESPRESSO
third-generation echelle spectrograph used by the Very Large Telescope
astronomical interferometer
array of separate telescopes, mirror segments, or radio telescope antennas that work together as a single telescope
sundial
device that tells the time of day by the apparent position of the Sun in the sky
astrolabe
astronomical instrument in the form of a disc or sphere with wires, cutouts or perforations that allows a user to calculate astronomical positions precisely
sextant
angle measurement navigational instrument
armillary sphere
model of objects in the sky
meridian circle
Astronomical instrument for timing of the passage of stars
adaptive optics
Technique used to improve performance of optical systems by compensating for distortions
coronagraph
telescopic attachment designed to block out the direct light from a star
Jacob's staff
calibrated wooden rod with sliding crosspiece used for measuring the altitude of celestial bodies or the height of distant objects
MIRI
camera and spectrometer on the James Webb Space Telescope
Sine quadrant
type of quadrant used by medieval Arabic astronomers
octant
measuring instrument used primarily in navigation; type of reflecting instrument
kamal
celestial navigation device that determines latitude
laser guide star
artificial star image created for use in astronomical adaptive optics imaging.
Gemini Planet Imager
imaging instrument for the Gemini South Telescope in Chile
Galaxy H-Alpha Fabry-Perot System
Fabry-Perot Interferometer for H-Alpha installed in William Herschel Telescope
Gregorian telescope
type of reflecting telescope
blink comparator
Astronomical instrument used to measure movements or variations in the brightness of celestial objects
Janssen revolver
early astronomical camera system
integral field spectrograph
spectrograph equipped with an integral field unit
Fine Guidance Sensor and Near Infrared Imager and Slitless Spectrograph
instrument on the James Webb Space Telescope that combines a Fine Guidance Sensor, a near-infrared imager and a spectrograph
impersonal micrometer
Instrument to measure a star transit in a telescope with a moving thread
sextant
astronomical device
astronomical rings
early astronomical instrument
siderostat
astronomical instrument which reflects the rays emanated from a celestial object in a constant direction
telescope
instrument that aids in the observation of remote objects
reflecting telescope
telescope design that collects and focuses light with a combination of mirrors
radio telescope
form of directional radio antenna used in radio astronomy
repeating circle
type of angular measurement instrument, notably used for navigation
Precision Integrated-Optics Near-infrared Imaging ExpeRiment
interferometer instrument