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Sigma Librae: Measurement, Nomenclature & Properties

Sigma Librae is a star in the constellation of Libra. It has the proper name Brachium, Sigma Librae is its Bayer designation. The apparent visual magnitude is +3.29, making it visible to the naked eye. Based upon parallax measurements, this star is at a distance of roughly 260 light-years (80 parsecs) from the Sun, with a 2% margin of error. At that…

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Sigma Librae topic overview

The analysis highlights Measurement, Nomenclature and Properties as prominent areas in the source structure around Sigma Librae.

Related topics
36
Source areas
3
Connected nodes
39
Extracted relationships
58
Concept neighborhoods
27
Bridge connections
39

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.

Nomenclature · 17 topics
Overview · 12 topics
Properties · 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.

Apparent magnitude (V)
3.20 - 3.46
B−V color index
+1.70
Constellation
Libra
Declination
−25° 16′ 55.0905″
Evolutionary stage
Asymptotic giant branch
Right ascension
15h 04m 04.21480s

Explore all related topics Closing gaps

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.

Overview

Nomenclature

Properties

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Sigma Librae connects Entity context

The extracted context around Sigma Librae shows recurring relationship patterns in the source. For example, Sigma Librae → Alpha Librae, Alpha Phoenicis, Ankaa, Arabic, Bayer, Both, Brachium, Commission, Cornu, Eta Librae, Gamma Librae, Gamma Scorpii, Genubi, IAU, IAU-approved Star Names, In, International Astronomical Union, It, July, Latin Another extracted example is Sigma Librae → If, III, It, Lib, M2, Sun, The, This. Use these groups to spot repeated connection types before inspecting the individual relationships.

Sigma Librae

Top relations

related to Nomenclature · 33
Sigma Librae → Alpha Librae, Alpha Phoenicis, Ankaa, Arabic, Bayer, Both, Brachium, Commission, Cornu, Eta Librae, Gamma Librae, Gamma Scorpii, Genubi, IAU, IAU-approved Star Names, In, International Astronomical Union, It, July, Latin
related to Properties · 8
Sigma Librae → If, III, It, Lib, M2, Sun, The, This
related to External links · 7
Sigma Librae → Gamma Scorpii, Illinois, James, Kaler, Stars, University, ZUBENHAKRABI
Apparent magnitude (V) · 1
Sigma Librae → 3.20 - 3.46
B−V color index · 1
Sigma Librae → +1.70
Constellation · 1
Sigma Librae → Libra
Declination · 1
Sigma Librae → −25° 16′ 55.0905″
Evolutionary stage · 1
Sigma Librae → Asymptotic giant branch
Right ascension · 1
Sigma Librae → 15h 04m 04.21480s
Spectral type · 1
Sigma Librae → M2.5III

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

star librae sigma magnitude 20 distance proper brachium name constellation libra parallax designation visual giant apparent sun gamma bayer 29

Sigma Librae relationships Subject–Predicate–Object triples

TTTA extracted 58 structured relationships around Sigma Librae. Examples in this analysis include Sigma Librae → Apparent magnitude (V) → 3.20 - 3.46 and Sigma Librae → B−V color index → +1.70. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Sigma LibraeApparent magnitude (V)3.20 - 3.461.00infobox
Sigma LibraeB−V color index+1.701.00infobox
Sigma LibraeConstellationLibra1.00infobox
Sigma LibraeDeclination−25° 16′ 55.0905″1.00infobox
Sigma LibraeEvolutionary stageAsymptotic giant branch1.00infobox
Sigma LibraeRight ascension15h 04m 04.21480s1.00infobox
Sigma LibraeSpectral typeM2.5III1.00infobox
Sigma LibraeU−B color index+1.941.00infobox
Sigma LibraeVariable typeSRb1.00infobox
Sigma Libraeis astar in the constellation of Libra0.90text
Sigma Libraerelated to External linksKaler0.60section
Sigma Libraerelated to External linksJames0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Sigma Librae bring nearby vocabulary together. In this analysis, examples include Sigma, Constellation and Bayer. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Sigma Librae
    • Sigma
    • Constellation
    • Bayer
    • Libra
    • Designation
    • Brachium
    • Chinese
    • Executions
    • Proper
    • Magnitude
    • Star
    • Apparent
  • sigma librae
    • Sigma
    • Constellation
    • Star
    • Brachium
    • Proper
    • Bayer
    • Libra
    • Designation
    • Chinese
    • Executions
    • Gamma
    • Magnitude
  • proper name
    • Bayer
    • Designation
    • Brachium
    • Sigma
    • Apparent
    • Asymptotic
    • Bore
    • Branch
    • Chinese
    • Current
    • Executions
    • Iau
  • bayer designation
    • Current
    • Designation
    • Brachium
    • Proper
    • Apparent
    • Asymptotic
    • Branch
    • Libra
    • M2
    • Mass
    • Parallax
    • Spectral
  • apparent visual magnitude
    • Extinction
    • Magnitude
    • Visual
    • Apparent
    • Asymptotic
    • Bayer
    • Branch
    • Current
    • Distance
    • Libra
    • M2
    • Mass
  • alpha librae
    • Sigma
    • Constellation
    • Star
    • Brachium
    • Proper
    • Bayer
    • Chinese
    • Executions
    • Libra
    • Designation
    • Gamma
    • Name
  • gamma librae
    • Iau
    • Scorpii
    • Sigma
    • Constellation
    • Star
    • Brachium
    • Proper
    • July
    • Names
    • Upon
    • Bayer
    • Chinese
  • eta librae
    • Sigma
    • Constellation
    • Star
    • Brachium
    • Proper
    • Bayer
    • Chinese
    • Executions
    • Libra
    • Designation
    • Gamma
    • Name

Connections between topic areas Semantic bridges

For Sigma Librae, one of the stronger structural bridges in this analysis connects Sigma Librae with Nomenclature. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Sigma Librae — Nomenclature · splits 22 ⟂ 18
Sigma Librae — Overview · splits 27 ⟂ 13
Sigma Librae — Properties · splits 32 ⟂ 8

Map overview Semantic statistics

Sigma Librae

Nodes40
Edges39
Triples58
Avg. degree1.95
Density0.05
Components1

Source & methodology

TTTA analyzes the structure around Sigma Librae to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Measurement, Nomenclature & Properties, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Sigma Librae · EN edition · Analysis: TopicsToTalkAbout

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