L1448
E476468
L1448 is a dense star-forming molecular cloud core within the Perseus molecular cloud complex, notable for its young protostars and powerful molecular outflows.
All labels observed (1)
| Label | Occurrences |
|---|---|
| L1448 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4885968 — 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: L1448 Context triple: [Perseus molecular cloud complex, containsRegion, L1448]
-
A.
Caldwell 14
Caldwell 14 is an open star cluster in the constellation Perseus, forming part of the famous Double Cluster visible to the naked eye in dark skies.
-
B.
Trumpler 14
Trumpler 14 is a very young, massive open star cluster in the Carina Nebula, notable for containing some of the most luminous and hottest known stars in the Milky Way.
-
C.
Lynds Dark Nebula 1634
Lynds Dark Nebula 1634 is a dense, star-forming dark cloud of gas and dust located within the Orion region, visible primarily by the starlight it obscures.
-
D.
Lambda Sagittarii
Lambda Sagittarii is a bright star in the constellation Sagittarius that marks the top of the Teapot asterism.
-
E.
R Coronae Australis
R Coronae Australis is a young variable star embedded in the Corona Australis star-forming region, notable for its irregular brightness changes and association with reflection nebulosity.
- 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: L1448 Target entity description: L1448 is a dense star-forming molecular cloud core within the Perseus molecular cloud complex, notable for its young protostars and powerful molecular outflows.
-
A.
Caldwell 14
Caldwell 14 is an open star cluster in the constellation Perseus, forming part of the famous Double Cluster visible to the naked eye in dark skies.
-
B.
Trumpler 14
Trumpler 14 is a very young, massive open star cluster in the Carina Nebula, notable for containing some of the most luminous and hottest known stars in the Milky Way.
-
C.
Lynds Dark Nebula 1634
Lynds Dark Nebula 1634 is a dense, star-forming dark cloud of gas and dust located within the Orion region, visible primarily by the starlight it obscures.
-
D.
Lambda Sagittarii
Lambda Sagittarii is a bright star in the constellation Sagittarius that marks the top of the Teapot asterism.
-
E.
R Coronae Australis
R Coronae Australis is a young variable star embedded in the Corona Australis star-forming region, notable for its irregular brightness changes and association with reflection nebulosity.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
dense core
ⓘ
molecular cloud core ⓘ star-forming region ⓘ |
| associatedWith |
Class 0 protostars
ⓘ
Herbig–Haro objects NERFINISHED ⓘ bipolar outflows ⓘ molecular outflows ⓘ young stellar objects ⓘ |
| catalogDesignation | Lynds 1448 NERFINISHED ⓘ |
| contains |
L1448-C
ⓘ
L1448-IRS2 NERFINISHED ⓘ L1448-IRS3 NERFINISHED ⓘ L1448-N ⓘ L1448-mm ⓘ |
| distanceFromEarth |
approximately 250 parsecs
ⓘ
approximately 800 light-years ⓘ |
| hasEnvironment |
cold dark cloud
ⓘ
highly embedded protostars ⓘ |
| hasOutflow |
L1448-C outflow
ⓘ
L1448-N outflow ⓘ L1448-mm outflow ⓘ |
| hasPhysicalProperty |
high extinction
ⓘ
high gas density ⓘ low temperature ⓘ |
| hasProcess |
jet-driven shocks
ⓘ
low-mass star formation ⓘ protostellar accretion ⓘ |
| hasRole |
laboratory for early protostellar evolution
ⓘ
testbed for outflow and jet models ⓘ |
| locatedIn |
Perseus constellation
NERFINISHED
ⓘ
Perseus molecular cloud complex NERFINISHED ⓘ |
| observedBy |
Herschel Space Observatory
NERFINISHED
ⓘ
IRAM 30m telescope NERFINISHED ⓘ JCMT NERFINISHED ⓘ Spitzer Space Telescope NERFINISHED ⓘ VLA NERFINISHED ⓘ |
| observedIn |
infrared wavelengths
ⓘ
millimeter wavelengths ⓘ submillimeter wavelengths ⓘ |
| partOf |
Milky Way
NERFINISHED
ⓘ
Perseus star-forming complex NERFINISHED ⓘ |
| studiedFor |
chemistry of shocked gas
ⓘ
initial conditions of star formation ⓘ |
| tracedBy |
CO emission
ⓘ
H2 emission ⓘ SiO emission ⓘ |
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: L1448 Description of subject: L1448 is a dense star-forming molecular cloud core within the Perseus molecular cloud complex, notable for its young protostars and powerful molecular outflows.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.