FOCAS
E440261
FOCAS is an optical camera and spectrograph instrument used on the Subaru Telescope for detailed imaging and spectroscopic observations of astronomical objects.
All labels observed (1)
| Label | Occurrences |
|---|---|
| FOCAS canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4437504 — 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: FOCAS Context triple: [Subaru Telescope, hasInstrument, FOCAS]
-
A.
FOS
FOS is a Hubble Space Telescope instrument designed to obtain spectra of very faint astronomical objects across a wide range of wavelengths.
-
B.
Phocus
Phocus is a minor figure in Greek mythology known primarily as a descendant of the Corinthian royal line.
-
C.
FAC
FAC is the commonly used abbreviation for the Foreign Affairs Council, the European Union body where member states’ foreign ministers coordinate and decide on EU external policy.
-
D.
FAC
FAC is a renowned multidisciplinary cultural center and contemporary art space in Havana, Cuba, known for its fusion of visual arts, music, performance, and nightlife.
-
E.
FACS
FACS is a professional designation indicating a surgeon is a Fellow of the American College of Surgeons and meets its standards of education, training, and ethical practice.
- 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: FOCAS Target entity description: FOCAS is an optical camera and spectrograph instrument used on the Subaru Telescope for detailed imaging and spectroscopic observations of astronomical objects.
-
A.
FOS
FOS is a Hubble Space Telescope instrument designed to obtain spectra of very faint astronomical objects across a wide range of wavelengths.
-
B.
Phocus
Phocus is a minor figure in Greek mythology known primarily as a descendant of the Corinthian royal line.
-
C.
FAC
FAC is the commonly used abbreviation for the Foreign Affairs Council, the European Union body where member states’ foreign ministers coordinate and decide on EU external policy.
-
D.
FAC
FAC is a renowned multidisciplinary cultural center and contemporary art space in Havana, Cuba, known for its fusion of visual arts, music, performance, and nightlife.
-
E.
FACS
FACS is a professional designation indicating a surgeon is a Fellow of the American College of Surgeons and meets its standards of education, training, and ethical practice.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical instrument
ⓘ
faint object camera and spectrograph ⓘ optical camera ⓘ optical spectrograph ⓘ |
| country | Japan ⓘ |
| dataProduct |
optical images
ⓘ
optical spectra ⓘ |
| detectorType | CCD ⓘ |
| fieldOfUse | observational astronomy ⓘ |
| fullName |
Faint Object Camera and Spectrograph
ⓘ
linked to:
Faint Object Camera
|
| hasComponent |
filter wheels
ⓘ
grisms ⓘ optical camera system ⓘ slit mechanism ⓘ spectrograph ⓘ |
| hostFacility |
Subaru Telescope facility
ⓘ
linked to:
Subaru Telescope
|
| locatedAtTelescopeFocus | Cassegrain focus ⓘ |
| locatedIn |
Subaru Telescope Cassegrain instrument suite
ⓘ
linked to:
Subaru Telescope
|
| observationType |
imaging observations
ⓘ
spectroscopic observations ⓘ |
| observatory | Subaru Telescope ⓘ |
| observatoryLocation |
Mauna Kea Observatory
ⓘ
linked to:
Mauna Kea Observatories
|
| observatorySite |
Mauna Kea, Hawaii
ⓘ
linked to:
Mauna Kea
|
| operatedBy |
National Astronomical Observatory of Japan
ⓘ
linked to:
NAOJ
|
| primaryFunction |
imaging
ⓘ
spectroscopy ⓘ |
| scienceApplication |
emission-line object surveys
ⓘ
galaxy evolution studies ⓘ quasar spectroscopy ⓘ supernova observations ⓘ |
| scienceTarget | astronomical objects ⓘ |
| scienceUse |
detailed imaging of faint objects
ⓘ
detailed spectroscopic studies ⓘ |
| supportsMode |
direct imaging mode
ⓘ
long-slit spectroscopy ⓘ multi-object spectroscopy ⓘ polarimetry ⓘ |
| telescope |
Subaru 8.2-m optical-infrared telescope
ⓘ
linked to:
Subaru Telescope
|
| telescopeAperture | 8.2 m ⓘ |
| telescopeType |
8.2-meter Subaru Telescope
ⓘ
linked to:
Subaru Telescope
|
| typicalUsers | astronomers ⓘ |
| usedOn | Subaru Telescope ⓘ |
| wavelengthRange | optical ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: FOCAS Description of subject: FOCAS is an optical camera and spectrograph instrument used on the Subaru Telescope for detailed imaging and spectroscopic observations of astronomical objects.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.