Nova Cygni 1886
E572872
Nova Cygni 1886 is a historic classical nova in the constellation Cygnus, notable as one of the early novae systematically studied in the late 19th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nova Cygni 1886 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6179622 — 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: Nova Cygni 1886 Context triple: [Williamina Fleming, discovered, Nova Cygni 1886]
-
A.
Nova Persei 1901
Nova Persei 1901 is a bright classical nova that erupted in 1901 in the constellation Perseus and became one of the most intensely studied novae in astronomical history.
-
B.
Barnard
Barnard is a surname and given name of English and French origin, borne by various notable individuals and institutions.
-
C.
V Coronae Australis
V Coronae Australis is a variable star located in the southern constellation Corona Australis.
-
D.
TY Coronae Australis
TY Coronae Australis is a young variable star in the Corona Australis constellation, associated with a nearby star-forming region and circumstellar material.
-
E.
Epsilon Scuti
Epsilon Scuti is a relatively faint star located in the small southern constellation Scutum.
- 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: Nova Cygni 1886 Target entity description: Nova Cygni 1886 is a historic classical nova in the constellation Cygnus, notable as one of the early novae systematically studied in the late 19th century.
-
A.
Nova Persei 1901
Nova Persei 1901 is a bright classical nova that erupted in 1901 in the constellation Perseus and became one of the most intensely studied novae in astronomical history.
-
B.
Barnard
Barnard is a surname and given name of English and French origin, borne by various notable individuals and institutions.
-
C.
V Coronae Australis
V Coronae Australis is a variable star located in the southern constellation Corona Australis.
-
D.
TY Coronae Australis
TY Coronae Australis is a young variable star in the Corona Australis constellation, associated with a nearby star-forming region and circumstellar material.
-
E.
Epsilon Scuti
Epsilon Scuti is a relatively faint star located in the small southern constellation Scutum.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
classical nova
ⓘ
nova ⓘ |
| apparentMagnitudeRange | 2.0–12.0 ⓘ |
| belongsToCatalog | General Catalogue of Variable Stars NERFINISHED ⓘ |
| binarySystem | yes ⓘ |
| componentType |
late-type companion star
ⓘ
white dwarf ⓘ |
| constellation | Cygnus NERFINISHED ⓘ |
| currentApparentMagnitude | >11 ⓘ |
| declination | +42°15′36.0″ ⓘ |
| discoveryMethod | visual observation ⓘ |
| distanceFromEarth |
~1500 parsecs
ⓘ
~4900 light-years ⓘ |
| epoch | J2000 ⓘ |
| evolutionaryStatus | post-nova cataclysmic variable ⓘ |
| galacticLatitude | +05.00 ⓘ |
| galacticLongitude | 079.90 ⓘ |
| historicalSignificance |
among first novae with systematic photometric monitoring
ⓘ
among first novae with systematic spectroscopic observations ⓘ contributed to early understanding of nova light-curve evolution ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| lightCurveType | slow nova ⓘ |
| locatedIn |
Galactic disk
ⓘ
Milky Way ⓘ |
| massTransferMechanism | accretion from companion onto white dwarf ⓘ |
| notableFor |
being one of the early novae systematically studied in the late 19th century
ⓘ
detailed historical light-curve observations ⓘ early spectroscopic study of nova evolution ⓘ |
| novaType | classical ⓘ |
| observedBy |
19th-century astronomers in Europe
ⓘ
19th-century astronomers in North America ⓘ |
| observedIn | 1886 ⓘ |
| observedWavelengths |
optical
ⓘ
photographic plates (historical) ⓘ |
| otherDesignation | V841 Cygni NERFINISHED ⓘ |
| outburstEnergySource | hydrogen fusion in degenerate matter ⓘ |
| outburstMechanism | thermonuclear runaway on white dwarf surface ⓘ |
| outburstYear | 1886 ⓘ |
| peakApparentMagnitude | ~2.0 ⓘ |
| remnantType | nova remnant ⓘ |
| rightAscension | 21h18m32.00s ⓘ |
| skyLocation | northern celestial hemisphere ⓘ |
| spectralTypeAtMaximum | A-type ⓘ |
| variableStarDesignation | V841 Cyg NERFINISHED ⓘ |
| variableStarType | NA (classical nova) in GCVS classification ⓘ |
| visibleTo | naked eye at maximum brightness ⓘ |
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: Nova Cygni 1886 Description of subject: Nova Cygni 1886 is a historic classical nova in the constellation Cygnus, notable as one of the early novae systematically studied in the late 19th century.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.