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Telescope in the Atacama Desert, Chile
The Very Large Telescope (VLT) is an astronomical facility operated since 1998 by the European Southern Observatory, located on Cerro Paranal in the Atacama
Very_Large_Telescope
GRAVITY is an instrument on the Very Large Telescope
GRAVITY GRAVITY is an instrument on the interferometer of the Very Large Telescope (VLTI). It either combines the light of the four Unit Telescopes (UT)
GRAVITY (Very Large Telescope)
GRAVITY_(Very_Large_Telescope)
Major astronomical facility in Chile
The Extremely Large Telescope (ELT) is an astronomical observatory under construction. When completed, it will be the world's largest optical and mid-infrared
Extremely_Large_Telescope
Instrument mounted on the Very Large Telescope
published using AMBER data. Astronomical interferometer CHARA array GRAVITY – Very Large Telescope#Instruments Infrared Spatial Interferometer MATISSE – Multi
AMBER_(Very_Large_Telescope)
Topics referred to by the same term
motions of planetary bodies GRAVITY (Very Large Telescope), an instrument at the Very Large Telescope Interferometer API gravity, a measure of how heavy or
Gravity_(disambiguation)
Attraction of masses and energy
At larger scales this resulted in galaxies and clusters, so gravity is a primary driver for the large-scale structures in the universe. Gravity has an
Gravity
even larger telescopes, starting with the 10-metre (400 inch) Keck telescopes in 1993/1996, and a number of 8-metre telescopes including the ESO Very Large
History_of_the_telescope
Type of Newtonian telescope popularized by John Dobson
a design focused towards one goal: building a very large, inexpensive, easy to use, portable telescope, one that could bring deep-sky astronomy to the
Dobsonian_telescope
Numbers significantly larger than those used regularly
defining a very large number, although the function increases very rapidly: one has to define an argument very close to the asymptote, i.e. use a very small
Large_numbers
Space telescope for gamma-ray astronomy launched in 2008
The Fermi Gamma-ray Space Telescope (FGST, also FGRST), formerly called the Gamma-ray Large Area Space Telescope (GLAST), is a space observatory being
Fermi Gamma-ray Space Telescope
Fermi_Gamma-ray_Space_Telescope
Astronomical observatory in Chile
The Vera C. Rubin Observatory, formerly the Large Synoptic Survey Telescope (LSST), is an astronomical observatory in Coquimbo Region, Chile. Its main
Vera_C._Rubin_Observatory
Telescope under construction in Chile
The Giant Magellan Telescope (GMT) is a ground-based, extremely large telescope currently under construction at Las Campanas Observatory in Chile's Atacama
Giant_Magellan_Telescope
NASA/ESA space telescope launched in 1990
The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the
Hubble_Space_Telescope
Space telescope which uses a reflective liquid
configuration, such a telescope would be similar to an Earth-based liquid-mirror telescope. However, instead of relying on Earth's gravity to maintain the necessary
Liquid-mirror_space_telescope
Telescopes which utilize curved mirrors to form an image
aberration. Although reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large diameter objectives. Almost
Reflecting_telescope
Type of optical telescope
refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses. Although large refracting
Refracting_telescope
Former radio telescope in Puerto Rico, United States
The Arecibo Telescope was a 305 m (1,000 ft) spherical reflector radio telescope built into a natural sinkhole at the Arecibo Observatory located near
Arecibo_Telescope
Very-high-energy photon telescope in the Canary Islands, Spain
05°). Directing the telescope to different elevation angles causes the reflector to deviate from its ideal shape due to the gravity. To counteract this
MAGIC_(telescope)
Hypothetical invisible cosmic material
Anderson, B.; Axelsson, M.; et al. (2009). "The large area telescope on the Fermi Gamma-ray Space Telescope Mission". Astrophysical Journal. 697 (2): 1071–1102
Dark_matter
Science fiction thriller by Alfonso Cuarón
Gravity is a 2013 science fiction thriller film directed by Alfonso Cuarón, who also co-wrote, co-edited, and produced the film. It stars Sandra Bullock
Gravity_(2013_film)
Telescope whose mirror is a reflective liquid
may exist for a liquid-mirror space telescope, where the effect of Earth's gravity is replaced by artificial gravity, perhaps by propelling it gently forward
Liquid-mirror_telescope
Global radio telescope array
Horizon Telescope (EHT) is a telescope array consisting of a global network of radio telescopes. The EHT project combines data from several very-long-baseline
Event_Horizon_Telescope
Radio telescope at Jodrell Bank Observatory, Cheshire, England
The Lovell Telescope (/ˈlʌvəl/ LUV-əl) is a radio telescope at Jodrell Bank Observatory, near Goostrey, Cheshire, in the north-west of England. Completed
Lovell_Telescope
Equilibrium points near two orbiting bodies
together in the sky; this means that a large sunshade with the telescope on the dark-side can allow the telescope to cool passively to around 50 K – this
Lagrange_point
Supermassive black hole at the center of the Milky Way
announced. Using the GRAVITY interferometer and the four telescopes of the Very Large Telescope (VLT) to create a virtual telescope 130 metres (430 feet)
Sagittarius_A*
Proposed gravitational wave detector
Einstein Telescope (ET), is a proposed third-generation ground-based gravitational wave (GW) detector, currently under study by some institutions in the
Einstein_Telescope
principle. Large Balloon Reflector (LBR) (sub-orbital version) Space-based Large Balloon Reflector (LBR) TeraHertz Space Telescope (TST) Advanced Telescope for
List of proposed space telescopes
List_of_proposed_space_telescopes
German astronomer
principal investigator of the GRAVITY experiment, which connects the European Southern Observatory's four Very Large Telescopes in Paranal, Chile, together
Frank_Eisenhauer
Dwarf planet in the Kuiper belt
distances beyond 30,000 km (19,000 mi). Larger moons could be hidden from the view of telescopes if they orbited very close to Makemake. The possibility of
Makemake
Interstellar comet in 2025
carbon monoxide, carbonyl sulfide, and methane. Observations by the Very Large Telescope have also shown that 3I/ATLAS is emitting cyanide gas and atomic
3I/ATLAS
History and future of the universe
very early universe by the James Webb Space Telescope were reported and discussed. Matter continues to draw together under the influence of gravity,
Chronology_of_the_universe
Instrument in space to study astronomical objects
aka "father of Hubble" proposed to put a telescope in space. Spitzer's proposal called for a large telescope that would not be hindered by Earth's atmosphere
Space_telescope
Aspect of relativity in physics
(NANOGrav) uses data collected by the Arecibo Radio Telescope, Green Bank Telescope, Very Large Array, and the Canadian Hydrogen Intensity Mapping Experiment
Gravitational_wave
typically around 100–150 mm across at sea level, and larger at higher altitudes. A small telescope may look through individual cells, whose movements give
Glossary_of_astronomy
Concept of using the Sun as a large lens
A solar gravitational lens or solar gravity lens (SGL) is a theoretical method of using the Sun as a large lens with a physical effect called gravitational
Solar_gravitational_lens
Astronomical survey that combines observations from 3 great NASA observatories
Space Telescope, the Very Large Telescope and the 4-m telescope at Kitt Peak National Observatory; infrared data from the Spitzer Space Telescope. These
Great Observatories Origins Deep Survey
Great_Observatories_Origins_Deep_Survey
Red supergiant star in the constellation Orion
European Southern Observatory in July 2009, taken by the ground-based Very Large Telescope Interferometer (VLTI), showed a vast “plume” of gas extending 30 AU
Betelgeuse
Subfield of astronomy
Space Telescope James Webb Space Telescope Very Large Telescope Atacama Large Millimeter Array Chandra X-ray Observatory Fermi Gamma-ray Space Telescope Calorimetric
Outline_of_astrophysics
Compact astronomical body
A black hole is an astronomical body so compact that its gravity prevents anything, including light, from escaping. Albert Einstein's theory of general
Black_hole
Fluctuation of spacetime on very small scales
the Fermi Gamma-ray Space Telescope and ground-based gamma-ray observations from the Very Energetic Radiation Imaging Telescope Array (VERITAS) showed no
Quantum_foam
Comparing widely separated telescope wavefronts
quasar, is collected at multiple radio telescopes on Earth or in space. The distance between the radio telescopes is then calculated using the time difference
Very-long-baseline interferometry
Very-long-baseline_interferometry
Shaping technology for reflecting telescopes
corrects atmospheric distortions. Most modern telescopes are reflectors, with the primary element being a very large mirror. Historically, primary mirrors were
Active_optics
Telescope for observations with visible light
objective. The larger the objective, the more light the telescope collects and the finer detail it resolves. People use optical telescopes (including monoculars
Optical_telescope
Outermost moon of Neptune
other large-aperture telescopes around the world, which included the 6.5-m Magellan–Baade Telescope at Las Campanas Observatory, the 8.2-m Very Large Telescope
S/2021_N_1
Natural physical entity in space
expand their understanding of astronomy and astronomical objects. Larger telescopes and observatories began to be built and scientists began to print
Astronomical_object
Binary star system
Future observations using instruments like the VLT’s GRAVITY+ or the Extremely Large Telescope (ELT)'s METIS expected to further explore the system.
D9_(star)
Irregular moon of Uranus
stars and galaxies. Applying the shift-and-add technique to very large aperture telescopes like Magellan enabled Sheppard to probe deeper than previous
S/2023_U_1
Astronomical observatory in Hawaii
large, ground-based telescope. In 1985, Howard B. Keck of the W. M. Keck Foundation gave $70 million to fund the construction of the Keck I telescope
W._M._Keck_Observatory
Hypothetical black hole formed soon after the Big Bang
Little red dots, unexpectedly large galaxies formed very early in cosmological time as observed by the James Webb Space Telescope (JWST). PBHs have long been
Primordial_black_hole
Fourth-largest asteroid
for Hygiea's diameter was measured via direct imaging using the Very Large Telescope (VLT) in Chile, whose atmospheric turbulence-correcting adaptive
10_Hygiea
Gamma Ray Telescope System in Namibia
observation of air showers with several telescopes, under different viewing angles, and the combination of telescopes to a large system to increase the effective
High Energy Stereoscopic System
High_Energy_Stereoscopic_System
Star system in the constellation Capricornus
investigating HD 206893 B with the GRAVITY instrument at the Very Large Telescope (VLT), signs of a potential very massive exomoon was detected around
HD_206893
Largest type of black hole
Black Holes: Gravity's Relentless Pull Interactive multimedia Web site about the physics and astronomy of black holes from the Space Telescope Science Institute
Supermassive_black_hole
French astronomer
general relativity. Perraut was one of the leaders of the GRAVITY instrument of the Very Large Telescope interferometer, which received the 2019 La Recherche
Karine_Perraut
Star orbiting close to the supermassive black hole in the center of the Milky Way
12 million km). However, later observations with the GRAVITY instrument of the Very Large Telescope observed S62 to be in an inconsistent position compared
S62_(star)
Metallic main-belt asteroid
addition to the large-scale regions of mass-deficit, several apparent craters have been reported. Observers using the Very Large Telescope's adaptive optics
16_Psyche
Jovian planet orbiting HR 8799
announced the result of their Very Large Telescope astronomical interferometer (VLTI) imaging of HR 8799 e employing the GRAVITY instrument. This was the first
HR_8799_e
Radio telescope observatory in New South Wales, Australia
Murriyang, the 64 m CSIRO Parkes Radio Telescope also known as "The Dish", along with two smaller radio telescopes. The 64 m dish was one of several radio
Parkes_Observatory
Planned Chinese radio telescope
The Xinjiang Qitai 120m Radio Telescope (QTT) is a planned radio telescope to be built in Qitai County in Xinjiang, China. Upon completion, which is scheduled
Qitai_Radio_Telescope
Light bending by mass between source and observer
intrinsically elliptical and the weak gravitational lensing signal is small, a very large number of galaxies must be used in these surveys. These weak lensing surveys
Gravitational_lens
Radio telescope array
the now-defunct Arecibo Telescope. The DSA incorporates two main technical advances, both related to its architecture of a large number of small antennas
Deep_Synoptic_Array
Hydrogen gas region in outer space approximately 100 AU in size
study of 73 EGGs in the Pillars of Creation (Eagle Nebula) with the Very Large Telescope showed that only 15% of the EGGs show signs of star-formation. The
Evaporating_gaseous_globule
Irregular moon of Neptune
by the 8.2-m Very Large Telescope at European Southern Observatory. Further attempts to reobserve S/2002 N 5 were unsuccessful. With very few observations
S/2002_N_5
Active galactic nucleus (AGN) containing a supermassive black hole
corresponding visible object. Using small telescopes and the Lovell Telescope as an interferometer, they were shown to have a very small angular size. By 1960, hundreds
Quasar
independently by French scientist Pierre-Simon Laplace. Both scholars proposed very large stars in contrast to the modern concept of an extremely dense object.
History_of_black_hole_physics
Classification of stars based on spectral properties
spectra. Due to low surface gravity in giant stars, TiO- and VO-bearing condensates never form. Thus, L-type stars larger than dwarfs can never form in
Stellar_classification
Device for making axially symmetric paraboloids
paraboloidal segments can be cast. This is done in the making of very large telescopes which have mirrors consisting of several segments.[citation needed]
Rotating_furnace
in the center of the Milky Way has been measured with the Very Large Telescope using GRAVITY, NACO and SIFONI instruments. Additionally, there has now
Tests_of_general_relativity
Theory of gravitation as curved spacetime
known as the general theory of relativity, and as Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in
General_relativity
Possible dwarf planet
indicates a lack of geological activity. Observations by the James Webb Space Telescope (JWST) showed that water ice makes up less than 5% of its surface, detecting
120347_Salacia
Surveying technique
differential levelling, employs an optical level, which consists of a precision telescope with crosshairs and stadia marks. The cross hairs are used to establish
Levelling
in a gravity field, no matter what they are made of. The Earth and the Moon have very different compositions—for example, the Earth has a large iron core
Apache Point Observatory Lunar Laser-ranging Operation
Apache_Point_Observatory_Lunar_Laser-ranging_Operation
Wolf–Rayet star in the constellation Dorado
cluster embedded in the Tarantula Nebula in the Large Magellanic Cloud. It required a 3.6 metre telescope to detect R136a as a component of R136 in 1979
R136a1
Hypothetical black holes of very small size
new physics (quantum gravity) with primordial black holes Kanti, Panagiota (November 20, 2004). "Black Holes in Theories with Large Extra Dimensions: a
Micro_black_hole
Theory of quantum gravity merging quantum mechanics and general relativity
Loop quantum gravity (LQG) is a theory of quantum gravity that incorporates matter of the Standard Model into the framework established for the intrinsic
Loop_quantum_gravity
Gravity Assist, the path taken by the Galileo spacecraft to reach Jupiter VeLLO – (celestial object) very-low-luminosity object VERITAS – (telescope)
List_of_astronomy_acronyms
Italian physicist and astronomer (1564–1642)
projectile's trajectory from a parabola would be only very slight. Using his refracting telescope, Galileo observed in late 1609 that the surface of the
Galileo_Galilei
Astronomical observatory in Wisconsin, USA
trends of telescope building of the late 19th century puts the choice of a large refractor in perspective. Although there were some very large reflectors
Yerkes_Observatory
Galaxy protocluster
the Subaru and Keck telescopes located on the Mauna Kea volcano in Hawaii. This structure is not only incredibly large, but also very dense; the galaxies
SSA22_Protocluster
Planetary nebula
resembles the wings of a butterfly. The nebula was imaged by the Hubble Space Telescope in the 1990s. The primary component of the central binary is the hot core
M2-9
Absence of the sensation of weight
to reduce the effect of gravity by attenuation to almost zero. This is simple in conception but requires travelling a very large distance, rendering it
Weightlessness
Exoplanet
surface gravity. The planet is within K2 Campaign 2, in the constellation Scorpius. K2-38b is a massive rocky exoplanet significantly larger and more
K2-38b
investigating HD 206893 B with the GRAVITY instrument at the Very Large Telescope (VLT), signs of a potential very massive exomoon was detected around
List_of_exomoon_candidates
Telescope at the South Pole
South Pole Telescope (SPT) is a 10-metre (390 in) diameter telescope located at the Amundsen–Scott South Pole Station, Antarctica. The telescope is designed
South_Pole_Telescope
Diffuse nebula in the constellation Orion
how the nebula appeared through his telescope: One sees how in like manner some stars are compressed into a very narrow space and how round about and
Orion_Nebula
Proposed theories of gravity
ideal theory of gravity. These attempts can be split into four broad categories based on their scope: Classical theories of gravity, which do not involve
Alternatives to general relativity
Alternatives_to_general_relativity
Magnitude or dimension of a thing
large to fit within the field of vision may be measured using a telescope, or through extrapolation from known reference points. However, even very advanced
Size
Free-floating planet in the constellation Leo
7 to 21 MJ. Additional follow-up was presented in 2024 with the Very Large Telescope (VLT), UVES instrument. The mass remains uncertain, but using the
2MASS_J11151597+1937266
Eighth planet from the Sun
renders it very dim, making it challenging to study with Earth-based telescopes. Only the advent of the Hubble Space Telescope and of large ground-based
Neptune
Irregular moon of Uranus
observatories, including the 200-inch Hale Telescope at Palomar Observatory and 8.2-m Very Large Telescope (VLT) at Paranal Observatory. Brian G. Marsden
Trinculo_(moon)
planets could be launched independently of gravity assistance. Space telescopes such as the Hubble Space Telescope have signified a new era of detailed observations
Exploration_of_Neptune
International radio telescope project
the notional size of the telescope's collecting area, not to the extent of the entire telescope array, which is far larger. Conceived in the 1990s, and
Square_Kilometre_Array
Extending boom design
Some pneumatic telescoping units are manufactured with retracted lengths of under 15% of overall extended unit length. This feature is very attractive to
Telescopic_cylinder
Classical statement of gravity as force
precession, made with advanced telescopes during the 19th century. The predicted angular deflection of light rays by gravity (treated as particles travelling
Newton's law of universal gravitation
Newton's_law_of_universal_gravitation
Maintenance of a particular orbit
result in the spacecraft leaving orbit completely. The deviation of Earth's gravity field from that of a homogeneous sphere and gravitational forces from the
Orbital_station-keeping
Type of space station, intended as a permanent settlement
feasibility calculations for large space-settlements. To his surprise, the habitats seemed feasible even in very large sizes: cylinders 8 km (5 mi) in
Space_settlement
Star in the constellation Canis Major
studied at near-infrared wavelengths using interferometry at the Very Large Telescope. The published size of the star was based on its Rosseland radius
VY_Canis_Majoris
Hypothetical form of dark matter in galactic halos
when it passes in front of or nearly in front of a star and the MACHO's gravity bends the light, causing the star to appear brighter in an example of gravitational
Massive_compact_halo_object
T Tauri-type star in the constellation Centaurus
have been directly imaged by the European Southern Observatory's Very Large Telescope, as well as a third unconfirmed protoplanet. PDS 70b was the first
PDS_70
X-ray telescope space observatory
Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories
Einstein_Observatory
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GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
GRAVITY VERY-LARGE-TELESCOPE
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