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7 Iris: Characters, Characteristics & Discovery and name

7 Iris is a large main-belt asteroid and possible remnant planetesimal orbiting the Sun between Mars and Jupiter. It is the fourth-brightest object in the asteroid belt. 7 Iris is classified as an S-type asteroid, meaning that it has a stony composition.

Language: English [EN]
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7 Iris topic overview

The analysis highlights Characters, Characteristics and Discovery and name as prominent areas in the source structure around 7 Iris.

Related topics
42
Source areas
4
Connected nodes
46
Extracted relationships
87
Concept neighborhoods
13
Bridge connections
46

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.

Characteristics · 23 topics
Discovery and name · 11 topics
Observations · 4 topics
Overview · 4 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.

Absolute magnitude (H)
5.64
Adjectives
Iridian /ɪˈrɪdiən, aɪ-/
Alternative designations
1847 PA
Angular diameter
0.32" to 0.07"
Aphelion
2.935 AU (439.1 million km)
Apparent magnitude
6.7 to 11.4

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 and name

Characteristics

Observations

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 7 Iris connects Entity context

The extracted context around 7 Iris shows recurring relationship patterns in the source. For example, 7 Iris → Archived, AstDyS-2, Asteroidal Occultation Results, Asteroids, Bibcode, Discovery, Durech Model, Dynamic SiteEphemeris, Elements, Elong, Ephemeris, Feb-19 Occultation, Icarus, Iris, JPL Ephemeris, JPL Small-Body DatabaseClose, Kaasalainen, March, Minor Planet Center, Models Another extracted example is 7 Iris → Both, In February, Iris, July, Massalia, May. Use these groups to spot repeated connection types before inspecting the individual relationships.

7 Iris

Top relations

related to External links · 36
7 Iris → Archived, AstDyS-2, Asteroidal Occultation Results, Asteroids, Bibcode, Discovery, Durech Model, Dynamic SiteEphemeris, Elements, Elong, Ephemeris, Feb-19 Occultation, Icarus, Iris, JPL Ephemeris, JPL Small-Body DatabaseClose, Kaasalainen, March, Minor Planet Center, Models
related to Observations · 6
7 Iris → Both, In February, Iris, July, Massalia, May
Absolute magnitude (H) · 1
7 Iris → 5.64
Adjectives · 1
7 Iris → Iridian /ɪˈrɪdiən, aɪ-/
Alternative designations · 1
7 Iris → 1847 PA
Angular diameter · 1
7 Iris → 0.32" to 0.07"
Aphelion · 1
7 Iris → 2.935 AU (439.1 million km)
Apparent magnitude · 1
7 Iris → 6.7 to 11.4
Argument of perihelion · 1
7 Iris → 145.4°
Average orbital speed · 1
7 Iris → 19.03 km/s

Important terminology

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

Important terminology

iris asteroid discovery km mean large diameter yr surface sun discovered belt magnitude asteroids s-type period rainbow oppositions features arcsec

7 Iris relationships Subject–Predicate–Object triples

TTTA extracted 87 structured relationships around 7 Iris. Examples in this analysis include 7 Iris → Absolute magnitude (H) → 5.64 and 7 Iris → Adjectives → Iridian /ɪˈrɪdiən, aɪ-/. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
7 IrisAbsolute magnitude (H)5.641.00infobox
7 IrisAdjectivesIridian /ɪˈrɪdiən, aɪ-/1.00infobox
7 IrisAlternative designations1847 PA1.00infobox
7 IrisAngular diameter0.32" to 0.07"1.00infobox
7 IrisAphelion2.935 AU (439.1 million km)1.00infobox
7 IrisApparent magnitude6.7 to 11.41.00infobox
7 IrisArgument of perihelion145.4°1.00infobox
7 IrisAverage orbital speed19.03 km/s1.00infobox
7 IrisDimensions268 km × 234 km × 180 km ± (5 km × 4 km × 6 km) 225 km × 190 km × 190 km1.00infobox
7 IrisDiscovered byJohn Russell Hind1.00infobox
7 IrisDiscovery date13 August 18471.00infobox
7 IrisEarth MOID0.85 AU (127 million km)1.00infobox
7 IrisEccentricity0.229771.00infobox
7 IrisEquatorial escape velocity0.131 km/s1.00infobox
7 IrisEquatorial rotation velocity25.4 m/s[b]1.00infobox
7 IrisEquatorial surface gravity0.08 m/s²1.00infobox
7 IrisFlattening0.42[a]1.00infobox
7 IrisGeometric albedo0.279 0.2766±0.0301.00infobox
7 IrisInclination5.519°1.00infobox
7 IrisLongitude of ascending node259.5°1.00infobox
7 IrisMass(13.5±2.3)×1018 kg(13.75±1.3)×1018 kg1.00infobox
7 IrisMean anomaly207.9°1.00infobox
7 IrisMean density3.26±0.74 g/cm3 2.7±0.3 g/cm31.00infobox
7 IrisMean diameter199±10 km 214±5 km 199.83±10 km (IRAS)1.00infobox
7 IrisMinor planet categoryMain belt1.00infobox
7 IrisNamed afterĪris1.00infobox
7 IrisOrbital period (sidereal)3.69 a (1346.8 d)1.00infobox
7 IrisPerihelion1.838 AU (275.0 million km)1.00infobox
7 IrisPrecession of asc. node−46.447128 arcsec / yr1.00infobox
7 IrisPrecession of perihelion long.38.403324 arcsec / yr1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around 7 Iris bring nearby vocabulary together. In this analysis, examples include Discovery, Period and S-type. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • 7 Iris
    • Discovery
    • Period
    • S-type
    • Time
    • Asteroids
    • Diameter
    • Discovered
    • Km
    • Mean
    • Asteroid
    • References
    • Rotation
  • 7 iris
    • Discovery
    • Period
    • S-type
    • Time
    • Asteroids
    • Diameter
    • Discovered
    • Km
    • Mean
    • Asteroid
    • References
    • Rotation
  • iris
    • Discovery
    • Period
    • S-type
    • Time
    • Asteroids
    • Diameter
    • Discovered
    • Km
    • Mean
    • Asteroid
    • References
    • Rotation
  • asteroid belt
    • Fourth-brightest
    • Object
    • Surface
    • Belt
    • S-type
    • References
    • Rotation
    • Sun
    • Yr
    • Bright
    • Features
    • Iris's
  • mean diameter
    • Km
    • References
    • Rotation
    • Yr
    • Magnitude
    • Period
    • Diameter
    • Mean
    • Surface
    • Arcsec
    • Al
    • Et
  • s-type asteroid
    • Fourth-brightest
    • Object
    • Asteroid
    • Belt
    • S-type
    • Sun
    • Asteroids
    • Diameter
    • Iris
    • Mean
    • Planetesimal
    • Remnant
  • diameter
    • Km
    • Mean
    • References
    • Rotation
    • Yr
    • Al
    • Et
    • Features
    • Magnitude
    • Names
    • Period
    • S-type
  • discovery and name
    • Original
    • Discovered
    • Iris
    • References
    • Rotation
    • Yr
    • Features
    • Period
    • Time
    • Asteroids
    • Km
    • Large

Connections between topic areas Semantic bridges

For 7 Iris, one of the stronger structural bridges in this analysis connects 7 Iris with Characteristics. 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
7 Iris — Characteristics · splits 23 ⟂ 24
7 Iris — Discovery and name · splits 35 ⟂ 12
7 Iris — Overview · splits 42 ⟂ 5
7 Iris — Observations · splits 42 ⟂ 5

Map overview Semantic statistics

7 Iris

Nodes47
Edges46
Triples87
Avg. degree1.96
Density0.042553
Components1

Source & methodology

TTTA analyzes the structure around 7 Iris to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Characters, Characteristics & Discovery and name, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — 7 Iris · EN edition · Analysis: TopicsToTalkAbout

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