Amateur astronomical telescope
Refracting telescope on tripod
Telescope against blue background
telescope on tripod isolated on white background
golden telescope on tripod isolated on white background
Red telescope
Telescope, X-ray
Illustration Technique, Astronomy Telescope, Telescope,
SOAR Telescope interior, Chile
Gemini South Telescope, interior panoramic view
Amateur astronomers
Inside the SMARTS 1.5m telescope dome
Galactic centre, gamma ray image
Microscope lens in a laboratory
Mother and son using telescope
Replica of Newton's reflecting telescope
Volume phase holographic grating
Amateur Astronomer
Refracting telescope
Observatory telescope
36 inch telescope at the Lick Observatory, USA
Telescope
HESS gamma ray telescope, Namibia
Binoculars
SOAR and Gemini South telescopes, Chile
Mayall 4-meter Telescope at night, Arizona, USA
Overall view of COAST telescope system, Cambridge
McMath Solar Telescope at Kitt Peak
Planetary nebula IC 1295, telescope image
Victor M Blanco telescope, interior view
Extreme close-up of dial on tourist sight-seeing camera
Star trails over dome of Nordic Optical Telescope
Nicholas U Mayall Telescope during a total lunar eclipse
Observers using a refracting telescope
Herschel space telescope construction
European Extremely Large Telescope
Newton's catadioptric telescope, 1672
Mercury's transit of the Sun, 2016
William Herschel Telescope at night
Galileo Galilei, Italian astronomer
Solar observatory
New Technology Telescope at La Silla, Chile
WIYN 0.9-metre telescope at KPNO
Control room of the Gemini South Telescope, Chile
Light beams in a refracting telescope
Telescope in Moonlight
望遠鏡
Meade LX200 16 Telescope
Flower Observatory 18-inch telescope
2.2-metre optical telescope
3.5-metre optical telescope
Magnifying glass on blue background
Gaia space probe, artwork
Isolated tourisitic telescope working with quarter coins
Fermi Gamma-ray Space Telescope sky map
Mario Motta's amateur observatory, USA
Camera obscura used to study sunspots
Telescopes
Mars, 1950s image
EXOSAT X-ray astronomical satellite
Astronomical Occultation
ルーペ
Telescope, artwork
Dark matter and Abell galaxy cluster
Small Magellanic Cloud
Beine-Nauroy observatory, France
Active galaxy, gamma ray image
Jones Emberson 1 planetary nebula
Spiral galaxy IC 1936
Supernova remnant Cassiopeia A
Jellyfish nebula
Lunar eclipse
Reflection nebulae VdB 14 & 15
Globular star cluster M22
Globular cluster M53
Open star cluster NGC 457, optical image
Globular star cluster NGC 362
Globular star cluster NGC 6760, IR image
Alnilam star (Epsilon Orionis)
Planetary nebula PK164
Maffei I and II galaxies
Spiral galaxy NGC 2403, optical image
Active galaxy NGC 1055, optical image
Abell 1060 galaxy cluster
Klemola 44 galaxy cluster
M14 Globular Star Cluster, optical image
Nebula NGC 1760, optical image
Tulip nebula, optical image
Nebulae NGC 2020 and NGC 2014
IC 2944 nebula, VLT image
Vera C Rubin Observatory, Chile, fishyeye view
Kitt Peak National Observatory during a lunar eclipse
Real sun seen with telescope and solar filter, astrophotography
Visible and Infrared Survey Telescope for Astronomy, Chile
Astronomer using a telescope
Elliptical galaxy NGC 1132
Galaxy IC 4870 with an active galactic nucleus, Hubble image
William Herschel telescope
XMM-Newton telescope tests
Cassegrain telescope in observatory
Prague astronomical observatory
Universe's dark matter, 3D map
James Webb Space Telescope mirror
Comet NEOWISE, space telescope image
Star shock wave, space telescope image
HESS gamma ray telescope mirror tests
SEST radio telescope at La Silla, Chile
Cosmic microwave telescope, Owens Valley, Calif.
Interstellar comet, Hubble Space Telescope image
望遠鏡のシルエット
Supernova 1987a remnant, artwork
Kitt Peak National Observatory
Telescopes, Canary Islands
Flaming Star nebula
Flaming Star nebula (IC 405)
Reflection nebulae NGC 1973-1977
Open star cluster NGC 7789, optical image
Globular star cluster M55 (NGC 6809)
Galaxies (NGC 5985, NGC 5982, NGC 5981)
Galaxy cluster Abell 2151
Perseus galaxy cluster (Abell 426)
Carina Nebula, VLT image
43-metre radio telescope at Green Bank, USA
15-inch equatorial telescope at US Naval Observatory
Two bright galactic nuclei, Very Large Telescope image
Stephan's Quintet galaxies, James Webb Space Telescope
Helmet Nebula, VLT image
Double-slit experiment
Bunsen burner tripod stand and gauze
Very Large Telescope mirror testing
Telescope at night, artwork
Telescope clock, Sydney Observatory
Telescope eyepiece, Hem Observatory
Grubb equatorial telescope, Hungary
USNO Great Equatorial telescope
Telescope equipment, 1903
Telescope & Orion
Twin telescope, Tulse Hill Observatory
12.25-inch telescope, Edinburgh
Hubble Space Telescope deployment simulation
Flammarion Observatory, France
Astronomer
David Levy
Observatory of Strasbourg
Observatory
Kitt Peak
Calar Alto Observatory
McMath-Pierce solar telescope, Kitt Peak
Mayall 4m telescope dome, Kitt Peak
Stars in globular cluster NGC 6397
Artwork of radio telescope
GMT mirror manufacture
7.25-inch telescope, Sydney Observatory
Paris Observatory telescope
Giant Magellan Telescope
Lowell Observatory telescope
Telescope, Durham University
Kitt Peak National Observatory dome
Protoplanet orbiting a star, VLT image