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Gamma Cassiopeiae: Physical properties, Names & Companions

Gamma Cassiopeiae, Latinized from γ Cassiopeiae formally named Tiansi, is a multiple star system at the center of the distinctive "W" asterism in the northern circumpolar constellation of Cassiopeia. It was observed in 1866 by Angelo Secchi, the first star ever observed with emission lines. It is now considered a Be star.

Language: English [EN]
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Gamma Cassiopeiae topic overview

The analysis highlights Physical properties, Names and Companions as prominent areas in the source structure around Gamma Cassiopeiae.

Related topics
54
Source areas
4
Connected nodes
58
Extracted relationships
92
Concept neighborhoods
31
Bridge connections
58

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.

Physical properties · 24 topics
Names · 12 topics
Overview · 12 topics
Companions · 6 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)
2.39 (varies by±0.01)
B−V color index
−0.15
Constellation
Cassiopeia
Declination
+60° 43′ 00.2984″
Evolutionary stage
main sequence
Right ascension
00h 56m 42.50108s

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

Names

Physical properties

Companions

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 Gamma Cassiopeiae connects Entity context

The extracted context around Gamma Cassiopeiae shows recurring relationship patterns in the source. For example, Gamma Cassiopeiae → Although, Arabic, Bayer, Cas, Cassiopeiae, Cassiopeiae Aa, Chinese, Cè, Flamsteed, Gamma, Gamma Cas, Heavenly Quadriga, IAU Catalog, Latin, Latinized, November, Star Names, The, The Chinese, The IAU Working Group Another extracted example is Gamma Cassiopeiae → Additionally, An, Component, Earth, Finally, Gaia Data Release, HD, Hipparcos, HR, It, Star, Sun, The, This. Use these groups to spot repeated connection types before inspecting the individual relationships.

Gamma Cassiopeiae

Top relations

related to Names · 25
Gamma Cassiopeiae → Although, Arabic, Bayer, Cas, Cassiopeiae, Cassiopeiae Aa, Chinese, Cè, Flamsteed, Gamma, Gamma Cas, Heavenly Quadriga, IAU Catalog, Latin, Latinized, November, Star Names, The, The Chinese, The IAU Working Group
related to Companions · 14
Gamma Cassiopeiae → Additionally, An, Component, Earth, Finally, Gaia Data Release, HD, Hipparcos, HR, It, Star, Sun, The, This
related to Physical properties · 13
Gamma Cassiopeiae → Alpha Cassiopeiae, At, Beta Cassiopeiae, Caph, Cassiopeiae, In, It, November, Observations, Schedar, TESS, The, When
related to External links · 11
Gamma Cassiopeiae → Active Stars ResearchGamma Cassiopeiae, Astronomy Picture, Be Stars, Day, December, Friends, Gamma Cas, Hot, New Class, Philippe Stee's, X-ray Star
related to X-ray emission · 9
Gamma Cassiopeiae → Be, Historically, In, It, Observations, The, X-ray, X-rays, XRISM
see also · 7
Gamma Cassiopeiae → ChaffeeSh, Dnoces, Ed WhiteGamma Velorum, II, Iota Ursae Majoris, Regor, Roger
is a · 2
Gamma Cassiopeiae → rapidly spinning star with a projected rotational velocity of 389 km/s, variable star system
Apparent magnitude (V) · 1
Gamma Cassiopeiae → 2.39 (varies by±0.01)
B−V color index · 1
Gamma Cassiopeiae → −0.15
Constellation · 1
Gamma Cassiopeiae → Cassiopeia

Important terminology

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

Important terminology

star cassiopeiae gamma disk stars system x-ray magnitude name emission variable hot magnetic white lines mass hd primary surface tiansi

Gamma Cassiopeiae relationships Subject–Predicate–Object triples

TTTA extracted 92 structured relationships around Gamma Cassiopeiae. Examples in this analysis include Gamma Cassiopeiae → Apparent magnitude (V) → 2.39 (varies by±0.01) and Gamma Cassiopeiae → B−V color index → −0.15. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Gamma CassiopeiaeApparent magnitude (V)2.39 (varies by±0.01)1.00infobox
Gamma CassiopeiaeB−V color index−0.151.00infobox
Gamma CassiopeiaeConstellationCassiopeia1.00infobox
Gamma CassiopeiaeDeclination+60° 43′ 00.2984″1.00infobox
Gamma CassiopeiaeEvolutionary stagemain sequence1.00infobox
Gamma CassiopeiaeRight ascension00h 56m 42.50108s1.00infobox
Gamma CassiopeiaeSpectral typeB0.5IVe1.00infobox
Gamma CassiopeiaeU−B color index−1.081.00infobox
Gamma CassiopeiaeVariable typeγ Cas1.00infobox
Gamma Cassiopeiaeis avariable star system0.90text
Gamma Cassiopeiaeis arapidly spinning star with a projected rotational velocity of 389 km/s0.90text
a white dwarf or neutron star.Observations are incompatible with the wind-disk collisioninstance ofor from accretion onto the surface of a degenerate companion0.80text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Gamma Cassiopeiae bring nearby vocabulary together. In this analysis, examples include Gamma, Variable and Name. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Gamma Cassiopeiae
    • Gamma
    • Variable
    • Name
    • Stars
    • Star
    • Cas
    • Cassiopeia
    • Latinized
    • Chinese
    • Period
    • Tiansi
    • Velocity
  • gamma cassiopeiae
    • Gamma
    • Variable
    • Tiansi
    • Star
    • Magnitude
    • Name
    • Stars
    • Cas
    • Cassiopeia
    • Latinized
    • Chinese
    • Period
  • multiple star system
    • Hd
    • Companion
    • Name
    • Tiansi
    • Although
    • Variable
    • System
    • Stars
    • Chinese
    • Velocity
    • Accretion
    • Emission
  • be star
    • Name
    • Although
    • System
    • Chinese
    • Tiansi
    • Velocity
    • Accretion
    • Emission
    • Variable
    • Magnetic
    • X-ray
    • Magnitude
  • variable star
    • Cas
    • Parallax
    • Luminosity
    • Name
    • Period
    • Tiansi
    • Velocity
    • Mass
    • Primary
    • Surface
    • Although
    • System
  • κ cassiopeiae
    • Gamma
    • Variable
    • Tiansi
    • Star
    • Magnitude
    • Name
    • Stars
    • Cassiopeia
    • Latinized
    • Chinese
    • Period
    • Velocity
  • β cassiopeiae
    • Gamma
    • Variable
    • Tiansi
    • Star
    • Magnitude
    • Name
    • Stars
    • Cassiopeia
    • Latinized
    • Chinese
    • Period
    • Velocity
  • iau working group on star names
    • Name
    • Although
    • System
    • Chinese
    • Tiansi
    • Velocity
    • Accretion
    • Emission
    • Variable
    • Magnetic
    • X-ray
    • Magnitude

Connections between topic areas Semantic bridges

For Gamma Cassiopeiae, one of the stronger structural bridges in this analysis connects Gamma Cassiopeiae with Physical properties. 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
Gamma Cassiopeiae — Physical properties · splits 34 ⟂ 25
Gamma Cassiopeiae — Overview · splits 46 ⟂ 13
Gamma Cassiopeiae — Names · splits 46 ⟂ 13
Gamma Cassiopeiae — Companions · splits 52 ⟂ 7

Map overview Semantic statistics

Gamma Cassiopeiae

Nodes59
Edges58
Triples92
Avg. degree1.97
Density0.033898
Components1

Source & methodology

TTTA analyzes the structure around Gamma Cassiopeiae to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Physical properties, Names & Companions, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Gamma Cassiopeiae · EN edition · Analysis: TopicsToTalkAbout

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