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HR 8799 e: Art, Observations & Description

HR 8799 e is a large exoplanet, orbiting the star HR 8799, which lies 129 light-years from Earth. This gas giant has 7.5 times the mass of Jupiter and 1.13 times its radius. Due to their young age, all four discovered planets in the HR 8799 system are large, compared to all gas giants in the Solar System.

Language: English [EN]
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HR 8799 e topic overview

The analysis highlights Art, Observations and Description as prominent areas in the source structure around HR 8799 e.

Related topics
29
Source areas
4
Connected nodes
33
Extracted relationships
49
Concept neighborhoods
20
Bridge connections
33

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.

Observations · 13 topics
Overview · 7 topics
Description · 6 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.

Detection method
Direct imaging
Discovered by
Marois et al.
Discovery date
November 1, 2010 (announced) November 22, 2010 (published)
Discovery site
Keck and Gemini observatories in Hawaii
Eccentricity
0.150±0.004: 6
Inclination
26.5±0.5: 6 °

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

Description

Discovery

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 HR 8799 e connects Entity context

The extracted context around HR 8799 e shows recurring relationship patterns in the source. For example, HR 8799 e → European Southern Observatory, GRAVITY, HR, In, March, On, Palomar Observatory, Sylvestre Lacour, Team, There, This, Very Large Telescope, VLTI Another extracted example is HR 8799 e → Astrophysics, Christian Marois, HR, Institute, Keck Observatory, Large Binocular Telescope, National Research Council's Herzberg, November, Observations, Thayne Currie, They, Very Large Telescope. Use these groups to spot repeated connection types before inspecting the individual relationships.

HR 8799 e

Top relations

related to Observations · 13
HR 8799 e → European Southern Observatory, GRAVITY, HR, In, March, On, Palomar Observatory, Sylvestre Lacour, Team, There, This, Very Large Telescope, VLTI
related to Discovery · 12
HR 8799 e → Astrophysics, Christian Marois, HR, Institute, Keck Observatory, Large Binocular Telescope, National Research Council's Herzberg, November, Observations, Thayne Currie, They, Very Large Telescope
related to Description · 8
HR 8799 e → AU, HR, It, Saturn, Solar System, The, This, Uranus
is a · 2
HR 8799 e → innermost known planet as it orbits closer to its star than the other three known planets in this planetary system, large exoplanet
Detection method · 1
HR 8799 e → Direct imaging
Discovered by · 1
HR 8799 e → Marois et al.
Discovery date · 1
HR 8799 e → November 1, 2010 (announced) November 22, 2010 (published)
Discovery site · 1
HR 8799 e → Keck and Gemini observatories in Hawaii
Eccentricity · 1
HR 8799 e → 0.150±0.004: 6
Inclination · 1
HR 8799 e → 26.5±0.5: 6 °

Important terminology

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

Important terminology

hr 8799 planet gas large observations gravity methane carbon atmosphere system star detection spectral giant mass exoplanet discovery announced young

HR 8799 e relationships Subject–Predicate–Object triples

TTTA extracted 49 structured relationships around HR 8799 e. Examples in this analysis include HR 8799 e → Detection method → Direct imaging and HR 8799 e → Discovered by → Marois et al.. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
HR 8799 eDetection methodDirect imaging1.00infobox
HR 8799 eDiscovered byMarois et al.1.00infobox
HR 8799 eDiscovery dateNovember 1, 2010 (announced) November 22, 2010 (published)1.00infobox
HR 8799 eDiscovery siteKeck and Gemini observatories in Hawaii1.00infobox
HR 8799 eEccentricity0.150±0.004: 61.00infobox
HR 8799 eInclination26.5±0.5: 6 °1.00infobox
HR 8799 eMass7.5±0.6: 6 MJ1.00infobox
HR 8799 eMean radius1.13±0.05: 25 RJ1.00infobox
HR 8799 eOrbital period (sidereal)52.37: 13 years1.00infobox
HR 8799 eSemi-major axis16.00±0.10: 6 AU1.00infobox
HR 8799 eSpectral type~L71.00infobox
HR 8799 eStarHR 87991.00infobox
HR 8799 eSurface gravity104.18+0.06 −0.05: 25 cgs1.00infobox
HR 8799 eTemperature1,138+30 −22: 25 K1.00infobox
HR 8799 eis alarge exoplanet0.90text
HR 8799 eis ainnermost known planet as it orbits closer to its star than the other three known planets in this planetary system0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around HR 8799 e bring nearby vocabulary together. In this analysis, examples include Large, Star and Telescope. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • HR 8799 e
    • Large
    • Star
    • Telescope
    • Gravity
    • Observations
    • Discovered
    • Discovery
    • Orbiting
    • Planet
    • References
    • Monoxide
    • Planets
  • hr 8799 e
    • Large
    • Star
    • Telescope
    • Gravity
    • Observations
    • Discovered
    • Discovery
    • Orbiting
    • Planet
    • References
    • Monoxide
    • Planets
  • hr 8799
    • Large
    • Star
    • Telescope
    • Gravity
    • Observations
    • Discovered
    • Discovery
    • Orbiting
    • Planet
    • References
    • Monoxide
    • Planets
  • gravity instrument
    • Surface
    • Type
    • Planet
    • Spectral
    • Hr
    • Observations
    • Keck
    • Orbiting
    • Radius
    • References
    • Mass
    • Monoxide
  • surface gravity
    • Surface
    • Type
    • Planet
    • Spectral
    • Hr
    • Observations
    • Showed
    • Temperature
    • Young
    • Keck
    • Orbiting
    • Radius
  • spectral type
    • Spectral
    • Type
    • Temperature
    • Gravity
    • Au
    • Discovery
    • Keck
    • Orbiting
    • Radius
    • References
    • Planet
    • Mass
  • mass of jupiter
    • Radius
    • Detection
    • Au
    • Discovery
    • Keck
    • Orbiting
    • References
    • Times
    • Monoxide
    • Planetary
    • Star
    • Surface
  • gas giant
    • Giant
    • Discovered
    • Solar
    • Young
    • System
    • Discovery
    • Radius
    • References
    • Times
    • Mass
    • Orbits
    • Hr

Connections between topic areas Semantic bridges

For HR 8799 e, one of the stronger structural bridges in this analysis connects HR 8799 e with Observations. 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
HR 8799 eObservations · splits 20 ⟂ 14
HR 8799 eOverview · splits 26 ⟂ 8
HR 8799 eDescription · splits 27 ⟂ 7
HR 8799 eDiscovery · splits 30 ⟂ 4

Map overview Semantic statistics

HR 8799 e

Nodes34
Edges33
Triples49
Avg. degree1.94
Density0.058824
Components1

Source & methodology

TTTA analyzes the structure around HR 8799 e to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Art, Observations & Description, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — HR 8799 e · EN edition · Analysis: TopicsToTalkAbout

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