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Telescopic attachment designed to block out the direct light from a star
A coronagraph is a telescopic attachment designed to block out the direct light from a star or other bright object so that nearby objects – which otherwise
Coronagraph
A vortex coronagraph is a type of optical instrument for telescopes that blocks the glare of stars or other bright objects so that dimmer, nearby objects
Vortex_coronagraph
NASA infrared space telescope launched in 2026
field of view, 100 times larger than imaging cameras on the Hubble. The Coronagraph Instrument (CGI) is a high-contrast, small-field-of-view camera and spectrometer
Nancy Grace Roman Space Telescope
Nancy_Grace_Roman_Space_Telescope
Spectrometric Coronagraph (LASCO) on board the Solar and Heliospheric Observatory satellite (SOHO) consists of three solar coronagraphs with nested fields
Large Angle and Spectrometric Coronagraph
Large_Angle_and_Spectrometric_Coronagraph
Ejecta from the Sun's corona
However, the estimated mass values for CMEs are only lower limits, because coronagraph measurements provide only two-dimensional data. CMEs erupt from strongly
Coronal_mass_ejection
Observatory
Magnetism Observatory (COSMO) Large Coronagraph. The COSMO K-coronagraph (K-Cor) is a 20 cm-aperture white-light coronagraph. It images the linearly polarized
Mauna_Loa_Solar_Observatory
Proposed space observatory to characterize exoplanets' atmospheres
planetary atmospheres and eclipse starlight with either an internal coronagraph or an external starshade. The proposal, first made in 2016, is for a
Habitable Exoplanets Observatory
Habitable_Exoplanets_Observatory
Proposed NASA space telescope
LUVOIR would be equipped with an internal coronagraph instrument, called ECLIPS for Extreme Coronagraph for LIving Planetary Systems, to enable direct
Large Ultraviolet Optical Infrared Surveyor
Large_Ultraviolet_Optical_Infrared_Surveyor
Disk used in telescopes to block a bright object
the manner of a micrometer to create artificial solar eclipses. The coronagraph, at its simplest, is an occulting disk in the focal plane of a telescope
Occulting_disk
European space observatory
solar disk to explore the core of the Sun. Large Angle and Spectrometric Coronagraph (LASCO), which studies the structure and evolution of the corona by creating
Solar and Heliospheric Observatory
Solar_and_Heliospheric_Observatory
Outermost layer of the Sun's atmosphere
completely or totally blocked in a solar eclipse, or with a specialized coronagraph. Spectroscopic measurements indicate strong ionization in the corona
Solar_corona
Artificial satellite, US Department of Defense
built by the Naval Research Laboratory. The coronagraph was the flight spare of the white-light coronagraph on the OSO-7 satellite. The ultraviolet imager
Solwind
Planned Chinese space telescope
The MCI can observe in parallel with the IFS. The cool planet imaging coronagraph (CPI-C) is designed for high-contrast direct imaging of exoplanets, with
Xuntian
Japanese telescope and observatory
stars than conventional Lyot type coronagraph designs. For example, at a distance of 100 pc, the PIAA coronagraph on SCExAO would be able to image from
Subaru_Telescope
Proposed NASA space telescope
habitable zones of their stars, where liquid water can exist, by using a coronagraph or a starshade to block out the light of their stars. The proposed launch
Habitable_Worlds_Observatory
European Space Agency mission
precisely casts its shadow onto the Coronagraph's telescope, blocking the Sun’s direct light. This allows the Coronagraph to image the faint solar corona
PROBA-3
Planetary system consisting of the Sun and objects orbiting it
M. (2004). "A New Observational Search for Vulcanoids in SOHO/LASCO Coronagraph Images". Icarus. 148 (1): 312–315. Bibcode:2000Icar..148..312D. doi:10
Solar_System
Kreutz sungrazer comet
It was observed by the U.S. Naval Research Laboratory's white light coronagraph, aboard a USAF satellite codenamed P78-1, also known as Solwind, on 30
C/1979_Q1_(Solwind)
Great Comet of 2024
perihelion. On 7 October, the comet entered the field of view of the SOHO Coronagraph, and continued to be visible until 11 October. On 9 October 2024, the
Comet_Tsuchinshan–ATLAS
European space-based solar observatory
thermal plasmas, mostly associated with flares and/or microflares Metis – Coronagraph (Italy): Simultaneously images the visible and far ultraviolet emissions
Solar_Orbiter
Star in the constellation Pegasus
team from NASAs Jet Propulsion Laboratory demonstrated that a vortex coronagraph could enable small telescopes to directly image planets. They did this
HR_8799
Planet outside of the Solar System
three known planets of the star HR 8799, as imaged by the Hale Telescope. The light from the central star was blanked out by a vector vortex coronagraph.
Exoplanet
Devices for observing, measuring or recording astronomical data
integrated circuitPages displaying short descriptions of redirect targets Coronagraph: telescopic attachment designed to block out the direct light from a
List of astronomical instruments
List_of_astronomical_instruments
T Tauri star in the constellation Ophiuchus
(2026-09-16). "Searching for Embedded Protoplanets with the Keck/NIRC2 Vortex Coronagraph: Confirmation of a Core-accretion Planet in the Narrow Gap of the Elias
Elias_2-24
Planned space telescope
70 centimeter diameter telescope-mounted coronagraph called PIAA (Phase Induced Amplitude Apodized Coronagraph) to suppress starlight in order to be able
Exoplanetary Circumstellar Environments and Disk Explorer
Exoplanetary_Circumstellar_Environments_and_Disk_Explorer
Notable coronal mass ejection
2012 The coronal mass ejection, as photographed by the STEREO-A COR2 coronagraph. The white circle in the middle of the black disc represents the location
July_2012_solar_storm
Imaging instrument aboard the James Webb Space Telescope
resolution of 0.07 arcseconds at 2 μm. NIRCam is also equipped with coronagraphs, which helps to collect data on exoplanets near stars. It helps with
NIRCam
American physicist
HAO's Coronagraph/Polarimeter Experiment that was launched aboard NASA's Solar Maximum Mission spacecraft (1975–1979; 1984–1986), the Rocket Coronagraph Experiment
Robert_M._MacQueen
Cool, tenuous region of the Sun's corona
When the Sun's disk is obscured during a total solar eclipse or by a coronagraph (pictured), coronal structures not otherwise visible can be observed
Coronal_hole
Brightest star in the constellation Lyra
Poynting-Robertson effect. The inner edge of the inner disk is hidden behind the coronagraph, but it was inferred to be 3-5 AU from photometry. The star is also surrounded
Vega
Gas giant orbiting Epsilon Indi A
motif marks the position of its host star; whose light is blocked by a coronagraph. Discovery Discovered by Fabo Feng, et al. Discovery date 21 March 2018
Epsilon_Indi_Ab
Event wherein the Sun is obscured by the Moon
stars, and planets including Saturn and Venus. Spacecraft equipped with coronagraphs use an internal or external occulter, or a combination of both, to create
Solar_eclipse
Observatory
Cassegrain telescope 60 cm Cassegrain reflector Schmidt telescope 50/70 cm Solar Coronagraph telescope 15 cm Related media on Commons [edit on Wikidata]
Rozhen_Observatory
Study of the Sun's behavior
infrequent total solar eclipses. Bernard Lyot's 1931 invention of the Coronagraph – a telescope with an attachment to block out the direct light of the
Solar_observation
NASA/ESA/CSA space infrared telescope launched in 2021
observatory's support infrastructure. NIRCam and MIRI feature starlight-blocking coronagraphs for observation of faint targets such as extrasolar planets and circumstellar
James_Webb_Space_Telescope
India's first solar observation mission
small, 400 kg (880 lb) satellite in a Low Earth Orbit (800 km) with a coronagraph to study the solar corona. An experimental budget of ₹3 crore was allocated
Aditya-L1
Active galactic nucleus (AGN) containing a supermassive black hole
Hubble images of quasar 3C 273. At right, a coronagraph blocks the quasar's light, making it easier to see the surrounding host galaxy.
Quasar
Indian national space and aeronautics agency
to study the solar corona. It is the first Indian space-based solar coronagraph to study the corona in visible and near-infrared bands. The main objective
ISRO
American astrophysicist
exoplanets. Together with Wesley Traub, he invented the band-limited coronagraph, used on the James Webb Space Telescope (JWST), originally designed for
Marc_Kuchner
Observatory
reflector unnamed double astrograph 0.5 m solar telescope (×2) Mirror Coronagraph for Argentina solar telescope H-Alpha Solar Telescope of Argentina solar
Félix_Aguilar_Observatory
Mountain in the French Pyrenees
telescopes. It is the largest telescope in France. The observatory also has a coronagraph, which is used to study the solar corona. A 0.60-meter telescope (the
Pic_du_Midi_de_Bigorre
Accumulation of matter around a star
the light of the star and the disk can be directly observed without a coronagraph or other advanced techniques (e.g. Gomez's Hamburger or Flying Saucer)
Circumstellar_disc
Natural phenomena within the Sun's atmosphere
and many solar telescopes were constructed. The 1931 invention of the coronagraph allowed the corona to be studied in full daylight. The Sun is a star
Solar_phenomena
infrared, where the planet is brighter than it is at visible wavelengths. Coronagraphs are used to block light from the star, while leaving the planet visible
Methods of detecting exoplanets
Methods_of_detecting_exoplanets
(born 1939) is known for his outstanding coronal observations with the coronagraph at the Norikura Solar Observatory. He also made countless sunspot drawings
Meanings of minor-planet names: 8001–9000
Meanings_of_minor-planet_names:_8001–9000
French astronomer
monochromatic light. Throughout the 1930s, he labored to perfect the coronagraph, which he invented to observe the corona without having to wait for a
Bernard_Lyot
Structure in the Sun's corona
structures in the Sun's corona which are often visible in white-light coronagraphs and during solar eclipses. They are closed magnetic loops which lie above
Helmet_streamer
Mountain in Germany
belonged to LMU Munich. In the 1960s the observatory was enhanced with a coronagraph, a device that enabled research to be carried out on the atmosphere of
Wendelstein_(mountain)
Proposed NASA spacecraft to study the Sun
demonstrated solar sailing around the Sun at an unusual polar orbit, while its coronagraph instrument would enable simultaneous measurements of the Sun's magnetic
Solar_Cruiser
American scientist and astronaut (1943–2023)
astronomy. He led the team that designed and constructed the Adaptive Optics Coronagraph, which led to the discovery of the first cool brown dwarf orbiting a
Samuel_T._Durrance
When an object is hidden behind another
of this design is called the Starshade, which uses a sunflower-shaped coronagraph disc. A comparable proposal was also made for a satellite to occult bright
Occultation
Space propulsion method using Sun radiation
000 sq ft) solar sail and would orbit the Sun in a polar orbit, while the coronagraph instrument would enable simultaneous measurements of the Sun's magnetic
Solar_sail
2026). "Searching for Embedded Protoplanets with the Keck/NIRC2 Vortex Coronagraph: Confirmation of a Core-accretion Planet in the Narrow Gap of the Elias
List of exoplanets discovered in 2026
List_of_exoplanets_discovered_in_2026
Brightest quasar from Earth located in the constellation Virgo
Camera for Surveys. Light from the bright quasar nucleus is blocked by a coronagraph so that the surrounding host galaxy can more easily be seen. Credit:
3C_273
Brightest star in Earth's night sky
and Faint Companions Near Sirius, Procyon, and Altair with the NICMOS Coronagraph". Publications of the Astronomical Society of the Pacific. 112 (772):
Sirius
American physicist and astronomer
an Extended Near-Sun Neutral Helium Cloud from Ground-based Infrared Coronagraph Spectropolarimetry". The Astrophysical Journal. 667 (2): L203–L205. Bibcode:2007ApJ
Jeff_Kuhn
Fall 2024 cargo mission to the ISS
streaming out at almost a million miles per hour. The investigation uses a coronagraph, an instrument that blocks out direct sunlight to reveal details in the
SpaceX_CRS-31
Exoplanets confirmed or discovered from direct imaging
ammonia in the atmosphere of a planetary mass companion with JWST/MIRI coronagraphs". Astronomy & Astrophysics. 693: A315. arXiv:2501.00104. Bibcode:2025A&A
List of directly imaged exoplanets
List_of_directly_imaged_exoplanets
American astronomer
first to photograph a protoplanetary disc around Beta Pictoris using a coronagraph. Terrile is a supporter of the simulation hypothesis, the idea that our
Richard_J._Terrile
Measurement method using interference of waves
with cryogenic optical resonators Figure 8. Fourier transform spectroscopy Figure 9. A picture of the solar corona taken with the LASCO C1 coronagraph
Interferometry
Brown dwarf
brown dwarf companion HR 2562 B with the vector Apodizing Phase Plate coronagraph". Monthly Notices of the Royal Astronomical Society. 506 (3): 3224–3238
HR_2562_B
dominant element of the Sun, not iron 1929 — Bernard Lyot invents the coronagraph and observes the corona with an "artificial eclipse" 1942 — J.S. Hey
Timeline_of_solar_astronomy
lenses, and tubes for instruments including spectrographs, cameras, or coronagraphs. There are many types of instruments that have been designed to observe
List_of_solar_telescopes
NASA concept study of an array of space telescopes
detection of the very dim infrared emission from the planets. Visible Light Coronagraph (TPF-C): A large optical telescope, with a mirror three to four times
Terrestrial_Planet_Finder
Astronomical imaging project at Palomar Observatory
1640 is an Integral field spectrograph (IFS) and an Apodized-pupil Lyot coronagraph at the Hale Telescope at Palomar. This instrument is the basis of a high-contrast
Project_1640
NOAA weather satellite
GOES-19 also carries a copy of the Naval Research Laboratory's Compact CORonagraph (CCOR) instrument designated as CCOR-1 which, along with the CCOR carried
GOES-19
systems which require a high level of stability such as those that use a coronagraph. Material characterization numbers have been mathematically derived to
Optothermal_stability
2026). "Searching for Embedded Protoplanets with the Keck/NIRC2 Vortex Coronagraph: Confirmation of a Core-accretion Planet in the Narrow Gap of the Elias
List_of_exoplanet_extremes
Star system in the constellation of Indus
Epsilon Indi Ab imaged by JWST MIRI. The star marks the position of its host star, whose light is blocked by a coronagraph.
Epsilon_Indi
Exoplanet orbiting the star Gliese 504
ammonia in the atmosphere of a planetary mass companion with JWST/MIRI coronagraphs". Astronomy & Astrophysics. 693: A315. arXiv:2501.00104. Bibcode:2025A&A
Gliese_504_b
Instrument at the Very Large Telescope
These instruments combine extreme adaptive optics with high-efficiency coronagraphs to correct for the atmospheric turbulence at high cadence and attenuate
Spectro-Polarimetric High-Contrast Exoplanet Research
Spectro-Polarimetric_High-Contrast_Exoplanet_Research
1956 television film by Frank Capra
understands why. Dr. Bernard Lyot developed the first coronagraph to study the Sun's corona. Improved coronagraphs are used at the High Altitude Observatory by
Our_Mr._Sun
Examples of applications can be found in Ref. Lyot filter Lyot depolarizer Coronagraph Lyot, Bernard (1939). "The Study of the Solar Corona and Prominences
Lyot_stop
Program within NASA
optical telescope fitted with a phase-induced amplitude apodization coronagraph, to image and characterize nearby exoplanets and zodiacal dust in stars
Astrophysics Strategic Mission Concept Studies
Astrophysics_Strategic_Mission_Concept_Studies
Multiple star system in the constellation Andromeda
relatively faint K-type dwarf, which has been imaged using a stellar coronagraph. The pair have a physical separation of 11.55±0.13 AU. The system has
Delta_Andromedae
Astronomical telescope at Roque de los Muchachos Observatory
instrument set. PolCor: a combined "Lucky" imager, polarimeter, and coronagraph LuckyCam: High frame rate, low noise CCD camera for lucky imaging SOFIN:
Nordic_Optical_Telescope
Binary star in the constellation Scorpius
field of view for any day of the year)". Large Angle and Spectrometric Coronagraph Experiment (LASCO). Archived from the original on 2015-02-24. Retrieved
Antares
American astronomer
planetary habitability. Turnbull is also an expert on the use of the coronagraph in the direct detection of exoplanets. In 2002, she helped develop the
Margaret_Turnbull
Telescope at Palomar Observatory in California, USA
team from NASA's Jet Propulsion Laboratory demonstrated that a vortex coronagraph could enable small scopes to directly image planets. The Hale had four
Hale_Telescope
NASA satellite of the Explorer program
on only one spacecraft, and is an externally occulted visible-light coronagraph. The Wide Field Imagers (WFIs) are side-looking heliospheric imagers
Polarimeter to Unify the Corona and Heliosphere
Polarimeter_to_Unify_the_Corona_and_Heliosphere
Europa while in orbit around Jupiter. EU PROBA-3 Earth Operational solar Coronagraph and Occulter dual satellites developed by ESA. Successfully launched
Timeline of artificial satellites and space probes
Timeline_of_artificial_satellites_and_space_probes
Substellar object
the atmospheric dynamics of other brown dwarfs and extrasolar planets. Coronagraphs have recently been used to detect faint objects orbiting bright visible
Brown_dwarf
Imaging instrument for the Gemini South Telescope in Chile
multiple components, including a high-order adaptive optics system, a coronagraph, a calibration interferometer, and an integral field spectrograph. The
Gemini_Planet_Imager
Planned Chinese solar orbiter
Such instruments include an ultraviolet and x-ray telescope, several coronagraphs, and a radio spectrometer. Additionally, it plans on carrying a handful
Solar_Polar_Orbit_Observatory
Reflection Nebulosity
discovered five nebulosities not related to star forming regions using a coronagraph. The nebulosities were found to have "linear, filamentary, striated morphological
Pleiades_Phenomenon
NASA solar observatory (1980–1989)
the atmosphere and burned up over the Indian Ocean. The white-light coronagraph/polarimeter (C/P) took coronal images for about six months from March
Solar_Maximum_Mission
Branch of space physics and aeronomy
Dere, K. P.; Lamy, P. L. (1995-12-01). "The Large Angle Spectroscopic Coronagraph (LASCO)". Solar Physics. 162 (1–2): 357–402. Bibcode:1995SoPh..162..357B
Space_weather
Binary star in the constellation Lupus
(arrow) with Gemini in 2019. The star is behind the black disk of the coronagraph in the center. Observation data Epoch J2000 Equinox ICRS Constellation
HD_143811
Proposed occulter
light-shield to produce an image. The starshade is a proposed sunflower-shaped coronagraph disc that was designed to block starlight that interferes with telescopic
New_Worlds_Mission
altitude. In 1979 he built the Cosmos Observatory and in 1988 set up a new coronagraph there that was destroyed by a group of guerrillas. He is currently trying
Meanings of minor-planet names: 7001–8000
Meanings_of_minor-planet_names:_7001–8000
Catalog for the largest known group of sungrazing comets
members of the Kreutz family are also being discovered through the Compact Coronagraph (CCOR) instrument aboard the GOES-19 satellite. List of comets by type
List_of_Kreutz_sungrazers
European Space Agency space weather mission
allow to estimate size, mass, speed, and direction of CMEs. Compact Coronagraph (CCOR) will image the solar corona and be used to observe Coronal Mass
Vigil_(space_mission)
American astrophysicist (born 1972)
when Kulkarni gave a lecture at Columbia) used the AOC (Adaptive Optics Coronagraph) that was installed on a telescope. In 1994, Oppenheimer joined Kulkarni’s
Rebecca_Oppenheimer
Oort cloud comet
Taos, New Mexico. On 25 April, as it crossed the view of the CCOR-1 coronagraph. On 9 May near the Orion Nebula, seen from Porirua, New Zealand. On 12
C/2025_R3_(PanSTARRS)
Telescope used to observe the Sun
satellite named Aditya-L1 on 2 September 2023. Its main instrument will be a coronagraph for studying the dynamics of the solar corona. The Einstein Tower (Einsteinturm)
Solar_telescope
Brightest star in Taurus
created using XEphem (2008). "Star Maps". Large Angle and Spectrometric Coronagraph Experiment (LASCO, part of SOHO, the Solar and Heliospheric Observatory)
Aldebaran
T Tauri-type star in the constellation Centaurus
first hypothesized in 1992 and fully imaged in 2006 with phase-mask coronagraph on the VLT. The disk has a radius of approximately 140 au. In 2012 a
PDS_70
the solar wind and its interaction with the interstellar medium. Its coronagraphs remain a key component for forecasting the speed, direction and strength
Heliophysics_Science_Division
Telescope in the Atacama Desert, Chile
in 2023. It is an adaptive-optics assisted near-infrared imager (with coronagraph option) and integral-field spectrograph. It replaces the former NACO
Very_Large_Telescope
French astrophysicist (born 1950)
Anthony; Clénet, Yann; Labeyrie, Antoine; "The Four-Quadrant Phase-Mask Coronagraph. I. Principle", PASP, 2000, 112, p. 1479, doi: 10.1086/317707 Léger,
Daniel_Rouan
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