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3C 273: History & Art
3C 273 is a quasar located at the center of a giant elliptical galaxy in the constellation of Virgo. It was the first quasar ever to be identified and is the visually brightest quasar in the sky as seen from the Earth, with an apparent visual magnitude of 12.9, outshining by more than 16 times the entire galaxy that hosts it. The derived distance to this…
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3C 273 topic overview
The analysis highlights History and Art as prominent areas in the source structure around 3C 273.
Related topics
66
Source areas
4
Connected nodes
70
Extracted relationships
62
Concept neighborhoods
32
Bridge connections
70
What this topic covers Research coverage
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Properties · 33 topics
History · 16 topics
Overview · 10 topics
Observation · 7 topics
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
Key facts & relationships
High-confidence facts extracted from structured source data. Use them as anchors for further research.
optically brightest quasar, first spectrum of a quasar
Redshift
0.158339 ± 0.000067
Explore all related topics Closing gaps
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
How 3C 273 connects Entity context
Entity context groups extracted connections by relationship type. Counts show recurrence in the analyzed source; the examples are research signals, not claims about importance.
The extracted context around 3C 273 shows recurring relationship patterns in the source. For example, 3C 273 → Articles, Astrophoto, Database, Detailed CCD, DSS2, ESA, GALEX, Hydrogen, INTEGRAL Science Data Centre, IRAS, MAP, ORG SDSS, Quasar, Redshift MeasurementNightSkyInfo, SDSS, Season AAVSO3C, Sky Map, Spring, Variable Star Of The, WikiSky Another extracted example is 3C 273 → After, Also, AU CVn, Bev Oke, BL Lac, Com, Cyril Hazard, However, In, Its, Maarten Schmidt, Nature, Parkes Radio Telescope, Prior, Radio Sources, The, Third Cambridge Catalog. Use these groups to spot repeated connection types before inspecting the individual relationships.
3C 273
Top relations
related to External links· 21
3C 273 → Articles, Astrophoto, Database, Detailed CCD, DSS2, ESA, GALEX, Hydrogen, INTEGRAL Science Data Centre, IRAS, MAP, ORG SDSS, Quasar, Redshift MeasurementNightSkyInfo, SDSS, Season AAVSO3C, Sky Map, Spring, Variable Star Of The, WikiSky
related to history· 17
3C 273 → After, Also, AU CVn, Bev Oke, BL Lac, Com, Cyril Hazard, However, In, Its, Maarten Schmidt, Nature, Parkes Radio Telescope, Prior, Radio Sources, The, Third Cambridge Catalog
related to Observation· 11
3C 273 → Due, Earth, Fifth Fundamental Catalog, FK5, Given, ICRS, International Celestial Reference System, July, March, Situated, Virgo
is a· 3
3C 273 → most distant celestial object average amateur astronomers are likely to see through their telescopes, quasar located at the center of a giant elliptical galaxy in the constellation of Virgo, radio-loud quasar
Relationships are represented as Subject → Predicate → Object triples. Confidence describes extraction strength, not the real-world importance of a relationship; lower-confidence rows may be contextual rather than explicit.
TTTA extracted 62 structured relationships around 3C 273. Examples in this analysis include 3C 273 → Apparent magnitude (V) → 12.9 and 3C 273 → Constellation → Virgo. The table shows each extracted connection, where it came from and its confidence.
optically brightest quasar, first spectrum of a quasar
1.00
infobox
3C 273
Redshift
0.158339 ± 0.000067
1.00
infobox
3C 273
Right ascension
12h 29m 06.7s
1.00
infobox
3C 273
Type
Blazar; Sy1
1.00
infobox
3C 273
is a
quasar located at the center of a giant elliptical galaxy in the constellation of Virgo
0.90
text
3C 273
is a
most distant celestial object average amateur astronomers are likely to see through their telescopes
0.90
text
3C 273
is a
radio-loud quasar
0.90
text
3C 273
related to External links
Database
0.60
section
No triples extracted yet.
Related concept clusters Concept neighborhoods
Concept neighborhoods group terms that sit near one another in the extracted graph. They are useful for discovering adjacent language and context, but proximity does not by itself imply a factual relationship.
The concept neighborhoods around 3C 273 bring nearby vocabulary together. In this analysis, examples include First, Quasar and Radio. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
3C 273
First
Quasar
Radio
Sources
Ascension
Right
Luminosity
Redshift
Object
Galaxy
Distance
Magnitude
3c 273
First
Quasar
Radio
Sources
Ascension
Right
Luminosity
Redshift
Object
Galaxy
Distance
Magnitude
quasar
First
Apparent
Magnitude
Brightest
Identified
Redshift
Sky
Also
Ascension
Large-scale
Luminous
Right
apparent visual magnitude
Earth
Brightest
Magnitude
Visual
Sky
Galaxy
Quasar
Apparent
Large-scale
Redshift
See
Luminous
apparent magnitude
Brightest
Magnitude
Visual
Galaxy
Sky
Quasar
Large-scale
Earth
Redshift
See
Luminous
Sun
3c
First
Quasar
Radio
Sources
Ascension
Right
Luminosity
Redshift
Object
Galaxy
Distance
Magnitude
3c 48
First
Quasar
Radio
Sources
Ascension
Right
Luminosity
Redshift
Object
Galaxy
Distance
Magnitude
elliptical galaxy
Galaxy
Apparent
Magnitude
Brightest
Constellation
Virgo
Quasar
First
See
Also
Ascension
Identified
Connections between topic areas Semantic bridges
Semantic bridges connect parts of the graph that would otherwise be more separate. A bridge is a structural signal in this analysis, not a claim that the two topic areas are equivalent.
For 3C 273, one of the stronger structural bridges in this analysis connects 3C 273 with Properties. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.
3C 273
Nodes71
Edges70
Triples62
Avg. degree1.97
Density0.028169
Components1
Source & methodology
TTTA analyzes the structure around 3C 273 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
