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NGC 4993 (také zapsaná jako NGC 4994) je čočková galaxie v souhvězdí Hydry, kterou objevil William Herschel 26. března 1789. 17. srpna 2017 byl v této galaxii pozorován optický protějšek gama záblesku GRB 170817A, který je pravděpodobně spojen s gravitační vlnou GW170817 pocházející z této galaxie.
The analysis highlights Pozorování and Overview as prominent areas in the source structure around NGC 4993.
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.
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.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
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The extracted context around NGC 4993 shows recurring relationship patterns in the source. For example, NGC 4993 → 26. března 1789 a 25. března 1836 Another extracted example is NGC 4993 → -23°23′2″. Use these groups to spot repeated connection types before inspecting the individual relationships.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
ngc 4993 března optický protějšek gama záblesku online galaxie 26 galaxii gravitačních vln cit 2017-10-17 dostupné anglicky 1789 hydra 4994
TTTA extracted 16 structured relationships around NGC 4993. Examples in this analysis include NGC 4993 → Datum objevu → 26. března 1789 a 25. března 1836 and NGC 4993 → Deklinace → -23°23′2″. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| NGC 4993 | Datum objevu | 26. března 1789 a 25. března 1836 | 1.00 | infobox |
| NGC 4993 | Deklinace | -23°23′2″ | 1.00 | infobox |
| NGC 4993 | Jiná označení | NGC 4993, NGC 4994, PGC 45657 | 1.00 | infobox |
| NGC 4993 | Komentář | První zachycený optický protějšek gama záblesku a zdroje gravitačních vln | 1.00 | infobox |
| NGC 4993 | New General Catalogue | NGC 4993 a NGC 4994 | 1.00 | infobox |
| NGC 4993 | Objevitel | William Herschel a John Herschel | 1.00 | infobox |
| NGC 4993 | Plošná jasnost | 12,9 | 1.00 | infobox |
| NGC 4993 | Poziční úhel | 168° | 1.00 | infobox |
| NGC 4993 | Principal Galaxies Catalogue | PGC 45657 | 1.00 | infobox |
| NGC 4993 | Rektascenze | 13h 9m 47,7s | 1.00 | infobox |
| NGC 4993 | Rudý posuv | 0,009727 (2 916 km/s) | 1.00 | infobox |
| NGC 4993 | Souhvězdí | Hydra (lat. Hydra) | 1.00 | infobox |
| NGC 4993 | Typ | eliptická galaxie a čočková galaxie | 1.00 | infobox |
| NGC 4993 | Vzdálenost | 130 Mly | 1.00 | infobox |
| NGC 4993 | Zdánlivá magnituda (V) | 12,4 | 1.00 | infobox |
| NGC 4993 | Úhlová velikost | 1,3×1,1' | 1.00 | infobox |
The concept neighborhoods around NGC 4993 bring nearby vocabulary together. In this analysis, examples include For, Cit and Online. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For NGC 4993, one of the stronger structural bridges in this analysis connects NGC 4993 with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around NGC 4993 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Pozorování & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — NGC 4993 · CS edition · Analysis: TopicsToTalkAbout