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Messier 82: Regions & Standards

Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. It is the second-largest member of the M81 Group, with the D25 isophotal diameter of 12.52 kiloparsecs (40,800 light-years). It is about five times more luminous than the Milky Way and its central…

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Messier 82 topic overview

The analysis highlights Regions and Standards as prominent areas in the source structure around Messier 82.

Related topics
63
Source areas
5
Connected nodes
68
Extracted relationships
45
Concept neighborhoods
24
Bridge connections
68

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.

Structure · 23 topics
Overview · 22 topics
Supernovae · 11 topics
Starbursts · 4 topics
Discovery · 3 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)
8.41
Apparent size (V)
11.2′ × 4.3′
Constellation
Ursa Major
Declination
+69° 40′ 46.140″
Distance
11.4–12.4 Mly (3.5–3.8 Mpc)
Heliocentric radial velocity
269±2 km/s

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

Discovery

Structure

Starbursts

Supernovae

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 Messier 82 connects Entity context

The extracted context around Messier 82 shows recurring relationship patterns in the source. For example, Messier 82 → Articles, Astrophoto, ChandraSST, Deep Space Map, DSS2, Fire, Galaxy, GALEX, Hydrogen, IRAS, M82, M82Messier, NASA/IPAC EXTRAGALACTIC DATABASEESA/Hubble, SDSS, SEDS Messier, Sky Map, The Cigar GalaxyM82, WikiSky, X-Ray Another extracted example is Messier 82 → As, In, It, Lick Observatory Supernova Search, March, Messier, November, SN, The, Type II. Use these groups to spot repeated connection types before inspecting the individual relationships.

Messier 82

Top relations

related to External links · 19
Messier 82 → Articles, Astrophoto, ChandraSST, Deep Space Map, DSS2, Fire, Galaxy, GALEX, Hydrogen, IRAS, M82, M82Messier, NASA/IPAC EXTRAGALACTIC DATABASEESA/Hubble, SDSS, SEDS Messier, Sky Map, The Cigar GalaxyM82, WikiSky, X-Ray
related to Supernovae · 10
Messier 82 → As, In, It, Lick Observatory Supernova Search, March, Messier, November, SN, The, Type II
related to Gallery · 5
Messier 82 → Anthony MICHEL, France, Messier, PlaneWave CDK, W4SM
Apparent magnitude (V) · 1
Messier 82 → 8.41
Apparent size (V) · 1
Messier 82 → 11.2′ × 4.3′
Constellation · 1
Messier 82 → Ursa Major
Declination · 1
Messier 82 → +69° 40′ 46.140″
Distance · 1
Messier 82 → 11.4–12.4 Mly (3.5–3.8 Mpc)
Heliocentric radial velocity · 1
Messier 82 → 269±2 km/s
Notable features · 1
Messier 82 → Edge-on starburst galaxy

Important terminology

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

Important terminology

m82 galaxy starburst supernova m81 sn one type light-years messier images known discovered magnitude 2014 82 x-ray arms detected ngc

Messier 82 relationships Subject–Predicate–Object triples

TTTA extracted 45 structured relationships around Messier 82. Examples in this analysis include Messier 82 → Apparent magnitude (V) → 8.41 and Messier 82 → Apparent size (V) → 11.2′ × 4.3′. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Messier 82Apparent magnitude (V)8.411.00infobox
Messier 82Apparent size (V)11.2′ × 4.3′1.00infobox
Messier 82ConstellationUrsa Major1.00infobox
Messier 82Declination+69° 40′ 46.140″1.00infobox
Messier 82Distance11.4–12.4 Mly (3.5–3.8 Mpc)1.00infobox
Messier 82Heliocentric radial velocity269±2 km/s1.00infobox
Messier 82Notable featuresEdge-on starburst galaxy1.00infobox
Messier 82Redshift0.000897±0.0000071.00infobox
Messier 82Right ascension09h 55m 52.9200s1.00infobox
Messier 82Size12.52 kiloparsecs (40,800 light-years) (diameter; 25.0 mag/arcsec2 B-band isophote)1.00infobox
Messier 82TypeI01.00infobox
Messier 82related to External linksM820.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Messier 82 bring nearby vocabulary together. In this analysis, examples include Cigar, Ngc and Starburst. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • starburst galaxy
    • Clusters
    • Starburst
    • Supernova
    • Messier
    • Sn
    • Thought
    • M82
    • Core
    • Ngc
    • Discovered
    • Type
    • Images
  • m82 x-2
    • Light-years
    • Messier
    • Starburst
    • M81
    • Observed
    • Center
    • Discovered
    • Magnitude
    • Object
    • Images
    • One
    • Diameter
  • irregular galaxy
    • Starburst
    • Supernova
    • Messier
    • Sn
    • M82
    • Ngc
    • Discovered
    • Type
    • Images
    • M81
    • Apparent
    • First
  • milky way galaxy
    • Way
    • Starburst
    • Supernova
    • Messier
    • Sn
    • M82
    • First
    • Observed
    • Region
    • Ngc
    • Center
    • Detected
  • low surface brightness galaxy
    • Starburst
    • Supernova
    • Messier
    • Sn
    • M82
    • Ngc
    • Discovered
    • Type
    • Images
    • M81
    • Apparent
    • First
  • Messier 82
    • Cigar
    • Ngc
    • Starburst
    • Galaxy
    • Light-years
    • M82
    • Diameter
    • Supernova
    • Apparent
    • Four
    • Region
    • Discovered
  • messier 82
    • Cigar
    • Ngc
    • Starburst
    • Galaxy
    • Light-years
    • M82
    • Diameter
    • Supernova
    • Apparent
    • Four
    • Region
    • Discovered
  • charles messier
    • Cigar
    • Ngc
    • Starburst
    • Galaxy
    • Light-years
    • M82
    • Diameter
    • Supernova
    • Apparent
    • Four
    • Region
    • Discovered

Connections between topic areas Semantic bridges

For Messier 82, one of the stronger structural bridges in this analysis connects Messier 82 with Structure. 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
Messier 82Structure · splits 45 ⟂ 24
Messier 82Overview · splits 46 ⟂ 23
Messier 82Supernovae · splits 57 ⟂ 12
Messier 82Starbursts · splits 64 ⟂ 5
Messier 82Discovery · splits 65 ⟂ 4

Map overview Semantic statistics

Messier 82

Nodes69
Edges68
Triples45
Avg. degree1.97
Density0.028986
Components1

Source & methodology

TTTA analyzes the structure around Messier 82 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Regions & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Messier 82 · EN edition · Analysis: TopicsToTalkAbout

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