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Ephemeris: History, Art & Standards
In astronomy and celestial navigation, an ephemeris (/ɪˈfɛmərɪs/; pl. ephemerides /ˌɛfəˈmɛrɪˌdiːz/; from Latin ephemeris 'diary', from Ancient Greek ἐφημερίς (ephēmerís) 'diary, journal') is a book with tables that gives the trajectory of naturally occurring astronomical objects and artificial satellites in the sky, i.e., the position (and possibly…
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Ephemeris topic overview
The analysis highlights History, Art and Standards as prominent areas in the source structure around Ephemeris.
Related topics
90
Source areas
3
Connected nodes
93
Extracted relationships
143
Concept neighborhoods
33
Bridge connections
93
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.
History · 39 topics
Modern ephemeris · 26 topics
Overview · 25 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.
Explore all related topics Closing gaps
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.
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.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
How Ephemeris connects Entity context
Entity context groups extracted connections by relationship type. Counts show recurrence in the analyzed source; the examples are research signals, not claims about importance.
The extracted context around Ephemeris shows recurring relationship patterns in the source. For example, Ephemeris → Abraão, According, AD, Alfonsine Tables, Almagest, Almanach Perpetuum, Although, Arabic, Babylonian, BC, Cambridge, Chinese, Christopher Columbus, Copernican, Copernicus, Copernicus's, Cremona, Dresden Codex, Ephemerides, Erasmus Reinhold Another extracted example is Ephemeris → ACS Publications, American Heritage Dictionary, Astro Computing Services, Astronomical Algorithms, Astronomy With Your Personal, Boston, Cambridge University Press, Century, Computer, Duffett-Smith, English Language, Explanatory, Houghton Mifflin, Hugh, Inc, ISBN, Jean, Kenneth, MacCraig, Macoy Publishing Company. Use these groups to spot repeated connection types before inspecting the individual relationships.
Relationships are represented as Subject → Predicate → Object triples. Confidence describes extraction strength, not the real-world importance of a relationship; lower-confidence rows may be contextual rather than explicit.
TTTA extracted 143 structured relationships around Ephemeris. Examples in this analysis include Ephemeris → is a → prime example and Chiron.Ephemerides are used in celestial navigation → instance of → and the positions of minor celestial bodies. The table shows each extracted connection, where it came from and its confidence.
Subject
Predicate
Object
Confidence
Src
Ephemeris
is a
prime example
0.90
text
Chiron.Ephemerides are used in celestial navigation
instance of
and the positions of minor celestial bodies
0.80
text
astronomy
instance of
and the positions of minor celestial bodies
0.80
text
Ephemeris
related to External links
The JPL HORIZONS
0.60
section
Ephemeris
related to External links
JPL
0.60
section
Ephemeris
related to External links
February
0.60
section
Ephemeris
related to External links
Ephemerides-IMCEE
0.60
section
Ephemeris
related to history
BC
0.60
section
Ephemeris
related to history
Ephemerides
0.60
section
Ephemeris
related to history
Babylonian
0.60
section
Ephemeris
related to history
AD
0.60
section
Ephemeris
related to history
Almagest
0.60
section
No triples extracted yet.
Related concept clusters Concept neighborhoods
Concept neighborhoods group terms that sit near one another in the extracted graph. They are useful for discovering adjacent language and context, but proximity does not by itself imply a factual relationship.
The concept neighborhoods around Ephemeris bring nearby vocabulary together. In this analysis, examples include Century, Ad and Position. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
Ephemeris
Century
Ad
Position
Tables
Ephemerides
Regiomontanus
Satellites
Data
Time
Modern
Published
Standard
ephemeris
Century
Ad
Position
Tables
Ephemerides
Regiomontanus
Satellites
Data
Time
Modern
Published
Standard
astronomy
Book
Celestial
Ephemerides
Ad
Navigation
Time
Astronomical
Modern
Standard
Used
Century
Ephemeris
celestial navigation
Used
Navigation
Time
Satellites
Positions
Book
Sky
Ephemerides
Contain
Data
Position
Form
astronomical objects
Time
Book
Celestial
System
Position
Astronomy
Positions
Date
Ephemeris
Given
Motion
Phenomena
celestial bodies
Used
Navigation
Time
Positions
Book
Sky
Ephemerides
Contain
Data
Position
Ephemeris
Date
babylonian astronomy
Book
Celestial
Ephemerides
Ad
Navigation
Time
Astronomical
Modern
Standard
Used
Century
Ephemeris
islamic astronomy
Book
Celestial
Ephemerides
Ad
Navigation
Time
Astronomical
Modern
Standard
Used
Century
Ephemeris
Connections between topic areas Semantic bridges
Semantic bridges connect parts of the graph that would otherwise be more separate. A bridge is a structural signal in this analysis, not a claim that the two topic areas are equivalent.
For Ephemeris, one of the stronger structural bridges in this analysis connects Ephemeris with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.
Ephemeris
Nodes94
Edges93
Triples143
Avg. degree1.98
Density0.021277
Components1
Source & methodology
TTTA analyzes the structure around Ephemeris to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Art & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
