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Alphecca

Alphecca (α Coronae Borealis, zkráceně Alpha CrB, α CrB) je zákrytová proměnná hvězda typu Algol v souhvězdí Severní koruny. Název Alphecca je oficiální název hvězdy schválený Mezinárodní astronomickou unií a pochází z arabského nayyir al-fakka , což by se dalo přeložit jako „jasná (hvězda) z rozlomeného prstence hvězd (koruny)“. Starší jméno Gemma…

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Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

2MASS
2MASS J15344125+2642529
Absolutní hvězdná velikost
+0,16/+5,05
Barevný index (B-V)
-0,03/-
Barevný index (U-B)
-0,02/-
Bayerovo označení
α CrB
Bonner Durchmusterung
BD +27°2512

Topics to explore

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Overview

Odkazy

  • Gemma Gemma?oldid=80897786

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.

Map overview Semantic statistics

Alphecca

Nodes20
Edges19
Triples35
Avg. degree1.9
Density0.1
Components1

How this topic connects Entity context

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Alphecca

Top relations

related to Externí odkazy · 4
Alphecca → Corona Borealis, GEMMA, Northern Crown, Skymap
2MASS · 1
Alphecca → 2MASS J15344125+2642529
Absolutní hvězdná velikost · 1
Alphecca → +0,16/+5,05
Barevný index (B-V) · 1
Alphecca → -0,03/-
Barevný index (U-B) · 1
Alphecca → -0,02/-
Bayerovo označení · 1
Alphecca → α CrB
Bonner Durchmusterung · 1
Alphecca → BD +27°2512
Bright Star katalog · 1
Alphecca → HR 5793
Deklinace · 1
Alphecca → 26°42′52,89″
Flamsteedovo označení · 1
Alphecca → 5 CrB

Important terminology Word statistics

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Important terminology

hvězda hvězdy gemma zákrytová což proměnná souhvězdí koruny algol slunce borealis typu pochází jako hvězd větší coronae crb severní 75

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Alphecca2MASS2MASS J15344125+26425291.00infobox
AlpheccaAbsolutní hvězdná velikost+0,16/+5,051.00infobox
AlpheccaBarevný index (B-V)-0,03/-1.00infobox
AlpheccaBarevný index (U-B)-0,02/-1.00infobox
AlpheccaBayerovo označeníα CrB1.00infobox
AlpheccaBonner DurchmusterungBD +27°25121.00infobox
AlpheccaBright Star katalogHR 57931.00infobox
AlpheccaDeklinace26°42′52,89″1.00infobox
AlpheccaFlamsteedovo označení5 CrB1.00infobox
AlpheccaGeneral CatalogueGC 209471.00infobox
AlpheccaGlieseho katalogGJ 95241.00infobox
AlpheccaHenry Draper CatalogueHD 1390061.00infobox
AlpheccaHmotnost2,7/0,92 M☉1.00infobox
AlpheccaKatalog HipparcosHIP 762671.00infobox
AlpheccaKatalog TychoTYC 2029-1690-11.00infobox
AlpheccaOscilační perioda17,35991.00infobox
AlpheccaParalaxa43,65 ± 0,791.00infobox
AlpheccaPoloměr2,89/0,90 R☉1.00infobox
AlpheccaPovrchová teplota9700/5800 K1.00infobox
AlpheccaRektascenze15h 34m 41,2681s1.00infobox
AlpheccaSAO katalogSAO 838931.00infobox
AlpheccaSouhvězdíSeverní Koruna (Corona Borealis)1.00infobox
AlpheccaSpektrální typA0V/G5V1.00infobox
AlpheccaStáří3,14×1081.00infobox
AlpheccaSynonymaGemma, Alphekka, Gnosia, Ashtaroth, The Jewel, Gnosia Stella Coronae1.00infobox
AlpheccaTyp proměnnostizákrytová proměnná1.00infobox
AlpheccaVlastní pohyb v deklinaci−89,58 mas/rok1.00infobox
AlpheccaVlastní pohyb v rektascenzi120,27 mas/rok1.00infobox
AlpheccaVzdálenost75±1 ly (22,9±0,4 pc)1.00infobox
AlpheccaZdánlivá hvězdná velikost2,24 (2,21 - 2,32)1.00infobox

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