Maksutov telescope
E466130
A Maksutov telescope is a compact catadioptric reflecting telescope that uses a meniscus corrector lens to deliver sharp, well-corrected images with relatively simple alignment and maintenance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Maksutov telescope canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4703374 — 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: Maksutov telescope Context triple: [Maksutov–Cassegrain telescope design, relatedTo, Maksutov telescope]
-
A.
Schmidt telescope
A Schmidt telescope is a wide-field reflecting telescope design that uses a spherical primary mirror and a correcting lens to capture sharp images over a large area of the sky.
-
B.
Ritchey–Chrétien reflector
A Ritchey–Chrétien reflector is a specialized type of reflecting telescope that uses hyperbolic primary and secondary mirrors to produce a wide, coma-free field of view ideal for professional astronomical imaging.
-
C.
Curtis Schmidt Telescope
The Curtis Schmidt Telescope is a wide-field Schmidt telescope known for its photographic sky surveys and operation at the Cerro Tololo Inter-American Observatory in Chile.
-
D.
Hale Telescope
The Hale Telescope is a historic 200-inch reflecting telescope at Palomar Observatory in California that was once the world’s largest and remains a landmark instrument in observational astronomy.
-
E.
Warsaw Telescope
The Warsaw Telescope is a 1.3-meter optical telescope at Las Campanas Observatory in Chile, widely used for large-scale astronomical surveys such as the OGLE project.
- 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: Maksutov telescope Target entity description: A Maksutov telescope is a compact catadioptric reflecting telescope that uses a meniscus corrector lens to deliver sharp, well-corrected images with relatively simple alignment and maintenance.
-
A.
Schmidt telescope
A Schmidt telescope is a wide-field reflecting telescope design that uses a spherical primary mirror and a correcting lens to capture sharp images over a large area of the sky.
-
B.
Ritchey–Chrétien reflector
A Ritchey–Chrétien reflector is a specialized type of reflecting telescope that uses hyperbolic primary and secondary mirrors to produce a wide, coma-free field of view ideal for professional astronomical imaging.
-
C.
Curtis Schmidt Telescope
The Curtis Schmidt Telescope is a wide-field Schmidt telescope known for its photographic sky surveys and operation at the Cerro Tololo Inter-American Observatory in Chile.
-
D.
Hale Telescope
The Hale Telescope is a historic 200-inch reflecting telescope at Palomar Observatory in California that was once the world’s largest and remains a landmark instrument in observational astronomy.
-
E.
Warsaw Telescope
The Warsaw Telescope is a 1.3-meter optical telescope at Las Campanas Observatory in Chile, widely used for large-scale astronomical surveys such as the OGLE project.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
catadioptric telescope
ⓘ
optical telescope design ⓘ reflecting telescope subtype ⓘ |
| differsFrom | Schmidt–Cassegrain telescope by using a thick meniscus corrector instead of a thin aspheric plate ⓘ |
| hasAdvantage |
good optical correction over small field
ⓘ
relatively low manufacturing sensitivity to alignment errors ⓘ resistance to dust and air currents ⓘ sharp high-contrast images ⓘ simple alignment requirements ⓘ |
| hasCountryOfOrigin | Soviet Union NERFINISHED ⓘ |
| hasDisadvantage |
heavy corrector plate
ⓘ
less suitable for wide-field deep-sky imaging ⓘ long cool-down time ⓘ narrow true field of view ⓘ typically slower focal ratios ⓘ |
| hasInventionYear | 1941 ⓘ |
| hasOpticalDesignFeature |
all-spherical surfaces
ⓘ
closed-tube design ⓘ compact tube length ⓘ good correction of chromatic aberration ⓘ good correction of coma ⓘ good correction of spherical aberration ⓘ long effective focal length ⓘ low maintenance collimation ⓘ narrow field of view ⓘ robust collimation stability ⓘ sealed optical tube ⓘ |
| hasOpticalElement |
full-aperture corrector plate
ⓘ
meniscus corrector lens ⓘ spherical primary mirror ⓘ |
| hasTypicalFocalRatioRange | f/10 to f/15 ⓘ |
| hasUse |
amateur astronomy
ⓘ
astrophotography (limited wide-field) ⓘ double star observation ⓘ lunar observation ⓘ planetary observation ⓘ terrestrial spotting ⓘ |
| hasVariant |
Gregory Maksutov–Cassegrain
NERFINISHED
ⓘ
Maksutov–Cassegrain telescope NERFINISHED ⓘ Maksutov–Newtonian telescope NERFINISHED ⓘ Rutten Maksutov–Cassegrain NERFINISHED ⓘ |
| isCompactComparedTo |
classical Cassegrain telescope
ⓘ
refracting telescope of similar focal length ⓘ |
| isMarketedBy | various commercial telescope manufacturers ⓘ |
| isPopularWith |
beginner astronomers
ⓘ
planetary observers ⓘ |
| isSimilarTo | Schmidt–Cassegrain telescope NERFINISHED ⓘ |
| usesCorrectorType | meniscus corrector ⓘ |
| wasInventedBy | Dmitri Dmitrievich Maksutov NERFINISHED ⓘ |
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: Maksutov telescope Description of subject: A Maksutov telescope is a compact catadioptric reflecting telescope that uses a meniscus corrector lens to deliver sharp, well-corrected images with relatively simple alignment and maintenance.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.