VERA (VLBI Exploration of Radio Astrometry)

E665996

radio astronomy instrument very long baseline interferometry project

VERA (VLBI Exploration of Radio Astrometry) is a Japanese very long baseline interferometry project that uses a network of radio telescopes to measure stellar positions and motions in the Milky Way with extremely high precision.

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All labels observed (2)

Label	Occurrences
VERA (VLBI Exploration of Radio Astrometry) canonical	1
VLBI Exploration of Radio Astrometry	1

How this entity was disambiguated

This entity first appeared as the object of triple T7459277 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: VERA (VLBI Exploration of Radio Astrometry)
Context triple: [NAOJ, participatesIn, VERA (VLBI Exploration of Radio Astrometry)]

A. International VLBI Service for Geodesy and Astrometry
The International VLBI Service for Geodesy and Astrometry is an international organization that coordinates Very Long Baseline Interferometry observations to provide precise measurements of Earth’s rotation, reference frames, and celestial positions.
B. VENUS observatory
VENUS observatory is an underwater cabled ocean observatory off the coast of British Columbia that provides real-time data for oceanographic and marine research.
C. space VLBI
Space VLBI is a radio astronomy technique that extends very long baseline interferometry by placing one or more antennas in space to achieve extremely high angular resolution beyond the limits of Earth-based arrays.
D. Atacama Pathfinder Experiment
The Atacama Pathfinder Experiment is a submillimeter-wavelength radio telescope located in Chile’s Atacama Desert, used for studying cold gas and dust in the universe.
E. Gaia observatory
The Gaia observatory is a European Space Agency space telescope designed to create the most precise 3D map of the Milky Way by measuring the positions, distances, and motions of over a billion stars.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: VERA (VLBI Exploration of Radio Astrometry)
Target entity description: VERA (VLBI Exploration of Radio Astrometry) is a Japanese very long baseline interferometry project that uses a network of radio telescopes to measure stellar positions and motions in the Milky Way with extremely high precision.

A. International VLBI Service for Geodesy and Astrometry
The International VLBI Service for Geodesy and Astrometry is an international organization that coordinates Very Long Baseline Interferometry observations to provide precise measurements of Earth’s rotation, reference frames, and celestial positions.
B. VENUS observatory
VENUS observatory is an underwater cabled ocean observatory off the coast of British Columbia that provides real-time data for oceanographic and marine research.
C. space VLBI
Space VLBI is a radio astronomy technique that extends very long baseline interferometry by placing one or more antennas in space to achieve extremely high angular resolution beyond the limits of Earth-based arrays.
D. Atacama Pathfinder Experiment
The Atacama Pathfinder Experiment is a submillimeter-wavelength radio telescope located in Chile’s Atacama Desert, used for studying cold gas and dust in the universe.
E. Gaia observatory
The Gaia observatory is a European Space Agency space telescope designed to create the most precise 3D map of the Milky Way by measuring the positions, distances, and motions of over a billion stars.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	radio astronomy instrument ⓘ very long baseline interferometry project ⓘ
abbreviation	VERA ⓘ
affiliation	Mizusawa VLBI Observatory ⓘ
baselineLength	up to about 2300 kilometers ⓘ
capability	microarcsecond-level astrometric precision ⓘ
collaboratesWith	KVN ⓘ VLBA ⓘ
country	Japan ⓘ
dataProduct	astrometric catalogs of maser sources ⓘ parallax measurements ⓘ proper motion measurements ⓘ
designedFor	high-precision Galactic astrometry ⓘ
field	astrometry ⓘ radio astronomy ⓘ
fullName	VLBI Exploration of Radio Astrometry ⓘ linked to: VERA (VLBI Exploration of Radio Astrometry)
fundingCountry	Japan ⓘ
goal	construct a three-dimensional map of the Milky Way ⓘ
hasObservationMode	phase-referenced VLBI ⓘ
hasTelescope	VERA Iriki station NERFINISHED ⓘ VERA Ishigakijima station NERFINISHED ⓘ VERA Mizusawa station NERFINISHED ⓘ VERA Ogasawara station NERFINISHED ⓘ
keyMethod	dual-beam VLBI system ⓘ
locationCountry	Japan ⓘ
observatoryType	radio interferometric array ⓘ
observesFrequencyBand	22 GHz ⓘ 43 GHz ⓘ
observesObjectType	Galactic center sources ⓘ evolved stars ⓘ maser sources ⓘ star-forming regions ⓘ
operator	National Astronomical Observatory of Japan ⓘ linked to: NAOJ
partOf	Japanese VLBI Network ⓘ
primaryScienceRegion	Milky Way Galaxy ⓘ linked to: Milky Way
purpose	determine distances in the Milky Way ⓘ measure stellar positions in the Milky Way ⓘ measure stellar proper motions in the Milky Way ⓘ
relatedProject	Gaia ⓘ JASMINE ⓘ
scientificContribution	constraints on the distance to the Galactic center ⓘ determination of Galactic rotation parameters ⓘ mapping of spiral arm structure of the Milky Way ⓘ measurement of trigonometric parallaxes in the Milky Way ⓘ
startOfOperations	early 2000s ⓘ
telescopeCount	4 ⓘ
telescopeDiameter	20 meters ⓘ
usesTechnique	very long baseline interferometry ⓘ