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Stephenson 2: History, Description & Observation history

Stephenson 2, also known as RSGC2 (Red Supergiant Cluster 2), is a young massive open cluster belonging to the Milky Way galaxy. It was discovered in 1990 as a cluster of red supergiants in a photographic, deep infrared survey by the astronomer Charles Bruce Stephenson, after whom the cluster is named. It is located in the constellation Scutum at the…

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Stephenson 2 topic overview

The analysis highlights History, Description and Observation history as prominent areas in the source structure around Stephenson 2.

Related topics: 24
Source areas: 3
Connected nodes: 27
Extracted relationships: 25
Concept neighborhoods: 16
Bridge connections: 27

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.

Description · 11 topics

Overview · 8 topics

Observation history · 5 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 dimensions (V): 1.8'
Apparent magnitude (V): not visible
Constellation: Scutum
Declination: −06° 01′ 44.4″
Distance: (5.83+1.91 −0.78 kpc)
Estimated age: 14–20 My

Suggested research paths

A focused starting point derived from the topic graph, ranked independently of the source article order.

Start with these areas

Observation history

Absolute magnitudes Light-years M-type Radial velocity Supergiants

Description

Alicante 10 Alicante 7 Alicante 8 RSGC1 RSGC3

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

Observation history

Light-years Light-year
M-type M-type star
Supergiants Supergiant
Absolute magnitudes Absolute magnitude
Radial velocity

Description

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 Stephenson 2 connects Entity context

The extracted context around Stephenson 2 shows recurring relationship patterns in the source. For example, Stephenson 2 → Deguchi, DFK, Some, Stephenson, SW, The, This, Thus, While Another extracted example is Stephenson 2 → Stars, Stephenson, SW. Use these groups to spot repeated connection types before inspecting the individual relationships.

Stephenson 2

Top relations

related to Stephenson 2 SW · 9

Stephenson 2 → Deguchi, DFK, Some, Stephenson, SW, The, This, Thus, While

related to Members · 3

Stephenson 2 → Stars, Stephenson, SW

Apparent dimensions (V) · 1

Stephenson 2 → 1.8'

Apparent magnitude (V) · 1

Stephenson 2 → not visible

Constellation · 1

Stephenson 2 → Scutum

Declination · 1

Stephenson 2 → −06° 01′ 44.4″

Distance · 1

Stephenson 2 → (5.83+1.91 −0.78 kpc)

Estimated age · 1

Stephenson 2 → 14–20 My

Mass · 1

Stephenson 2 → (3–5)×104 M☉

Other designations · 1

Stephenson 2 → RSGC2

Important terminology

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

Important terminology

stephenson cluster distance supergiants stars red kiloparsecs light-years scutum members also study milky way estimated 000 radial dfk sw open

Stephenson 2 relationships Subject–Predicate–Object triples

TTTA extracted 25 structured relationships around Stephenson 2. Examples in this analysis include Stephenson 2 → Apparent dimensions (V) → 1.8' and Stephenson 2 → Apparent magnitude (V) → not visible. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
Stephenson 2	Apparent dimensions (V)	1.8'	1.00	infobox
Stephenson 2	Apparent magnitude (V)	not visible	1.00	infobox
Stephenson 2	Constellation	Scutum	1.00	infobox
Stephenson 2	Declination	−06° 01′ 44.4″	1.00	infobox
Stephenson 2	Distance	(5.83+1.91 −0.78 kpc)	1.00	infobox
Stephenson 2	Estimated age	14–20 My	1.00	infobox
Stephenson 2	Mass	(3–5)×104 M☉	1.00	infobox
Stephenson 2	Other designations	RSGC2	1.00	infobox
Stephenson 2	Radius	~4 pc	1.00	infobox
Stephenson 2	Right ascension	18h 39m 21.12s	1.00	infobox
Stephenson 2 DFK 1	instance of	This includes stars	0.80	text
Stephenson 2 DFK 2	instance of	This includes stars	0.80	text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Stephenson 2 bring nearby vocabulary together. In this analysis, examples include Stars, Dfk and Sw. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

Stephenson 2
- Stars
- Dfk
- Sw
- Distance
- Estimated
- Radial
- Kiloparsecs
- Light-years
- Members
- Study
- Supergiants
- 2mass
stephenson 2
- Stars
- Dfk
- Sw
- Distance
- Estimated
- Radial
- Kiloparsecs
- Light-years
- Members
- Study
- Supergiants
- 2mass
open cluster
- Rsgc2
- Mass
- Dfk
- Estimated
- Stephenson
- Red
- Supergiants
- Stars
- 2mass
- Constellation
- Distance
- Kpc
milky way
- Milky
- Way
- Known
- Scutum
- Members
- Red
- Rsgc2
- Association
- Cluster's
- Kinematic
- Massive
- Open
charles bruce stephenson
- Stars
- Dfk
- Sw
- Distance
- Estimated
- Radial
- Kiloparsecs
- Light-years
- Members
- Study
- Supergiants
- 2mass
stephenson 2 dfk 1
- See
- Mass
- Open
- Estimated
- Stars
- Dfk
- Stephenson
- Sw
- Distance
- Kpc
- Rsgc2
- Radial
stephenson 2 dfk 49
- See
- Mass
- Open
- Estimated
- Stars
- Dfk
- Stephenson
- Sw
- Distance
- Kpc
- Rsgc2
- Radial
scutum
- Way
- Kiloparsecs
- Light-years
- 2mass
- See
- Association
- Cluster's
- Kinematic
- Mass
- Second
- Similar
- Around

Connections between topic areas Semantic bridges

For Stephenson 2, one of the stronger structural bridges in this analysis connects Stephenson 2 with Description. 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

Stephenson 2 — Description · splits 16 ⟂ 12

Stephenson 2 — Overview · splits 19 ⟂ 9

Stephenson 2 — Observation history · splits 22 ⟂ 6

Map overview Semantic statistics

Stephenson 2

Nodes28

Edges27

Triples25

Avg. degree1.93

Density0.071429

Components1

Source & methodology

TTTA analyzes the structure around Stephenson 2 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Description & Observation history, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Stephenson 2 · EN edition · Analysis: TopicsToTalkAbout

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