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Messier 81 (také M81, Bodeho galaxie nebo NGC 3031) je spirální galaxie v souhvězdí Velké medvědice, která byla objevena Johannem Elertem Bodem 31. prosince 1774 společně s nedalekou galaxií M82. Obě galaxie jsou spolu s NGC 2403 nejjasnějšími členy skupiny galaxií M 81. M81 je od Země vzdálená 12 miliónů světelných let a se svou magnitudou 6,9 a…
The analysis highlights Pozorování, Vlastnosti and Historie pozorování as prominent areas in the source structure around Messier 81.
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 Messier 81 shows recurring relationship patterns in the source. For example, Messier 81 → 31. prosince 1774 Another extracted example is Messier 81 → 69°3′55″. 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.
galaxie m81 81 galaxií ngc online m82 messier medvědice typu této skupiny let 31 prosince supernovy souhvězdí 1774 jako ii
TTTA extracted 20 structured relationships around Messier 81. Examples in this analysis include Messier 81 → Datum objevu → 31. prosince 1774 and Messier 81 → Deklinace → 69°3′55″. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Messier 81 | Datum objevu | 31. prosince 1774 | 1.00 | infobox |
| Messier 81 | Deklinace | 69°3′55″ | 1.00 | infobox |
| Messier 81 | IRAS | IRAS F09514+6918 a IRAS 09514+6918 | 1.00 | infobox |
| Messier 81 | Jiná označení | M81, NGC 3031, UGC 5318, PGC 28630, MCG 12-10-10, IRAS09514+6918, KPG 218A, ZWG 333.7 | 1.00 | infobox |
| Messier 81 | Kupa galaxií | Skupina galaxií M 81 | 1.00 | infobox |
| Messier 81 | Messierův katalog | M 81 | 1.00 | infobox |
| Messier 81 | New General Catalogue | NGC 3031 | 1.00 | infobox |
| Messier 81 | Objevitel | Johann Elert Bode | 1.00 | infobox |
| Messier 81 | Plošná jasnost | 13,0 mag/sq arcmin | 1.00 | infobox |
| Messier 81 | Poziční úhel | 157° | 1.00 | infobox |
| Messier 81 | Principal Galaxies Catalogue | PGC 28630 | 1.00 | infobox |
| Messier 81 | Rektascenze | 9h 55m 33,2s | 1.00 | infobox |
| Messier 81 | Rudý posuv | -0,000113 | 1.00 | infobox |
| Messier 81 | Souhvězdí | Velká medvědice (lat. UMa) | 1.00 | infobox |
| Messier 81 | Typ | astronomický rádiový zdroj, zdroj infračerveného záření, zdroj rentgenového záření, Seyfertova galaxie typu 2 a aktivní galaktické jádro | 1.00 | infobox |
| Messier 81 | Třída | SA(s)ab | 1.00 | infobox |
| Messier 81 | Uppsala General Catalogue | UGC 5318 | 1.00 | infobox |
| Messier 81 | Vzdálenost | 12,0 ± 1,5 Mly (3,69 ± 0,46 Mpc) | 1.00 | infobox |
| Messier 81 | Zdánlivá magnituda (V) | 7,89, 6,94, 4,76, 4,09, 3,831, 11,673, 9,635, 8,708, 8,373, 7,921 a 15,130 657 | 1.00 | infobox |
| Messier 81 | Úhlová velikost | 24,9'x11,5' | 1.00 | infobox |
The concept neighborhoods around Messier 81 bring nearby vocabulary together. In this analysis, examples include Cit, Medvědice and Ngc. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Messier 81, one of the stronger structural bridges in this analysis connects Messier 81 with Pozorování. 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 Messier 81 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Pozorování, Vlastnosti & Historie pozorování, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Messier 81 · CS edition · Analysis: TopicsToTalkAbout