query-0b1d83ecb0c0844b80e5e458f7a61e9c
Stars states: 1981 Nautical Almanac so the relevant subset can be selected quickly. The (Q108171565)navigational star Too many stars in the sky.... Create Typically, only 57 stars are used for navigational purposes in both Northern and Southern Hemispheres. Here you’ll also find Polaris and Scheat. In the Northern Hemisphere Polaris is often used for determination of latitude.
Use at
- https://query.wikidata.org/sparql
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?star ?starLabel ?epochLabel ?ra ?decl WHERE {
?star wdt:P31 wd:Q108171565 .
?star wdt:P6259 ?epoch .
?star wdt:P6257 ?ra .
?star wdt:P6258 ?decl .
SERVICE wikibase:label {
bd:serviceParam wikibase:language "en" .
}
} LIMIT 100
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v4("?decl"):::projected
v2("?epoch")
v3("?ra"):::projected
v1("?star"):::projected
c7(["bd:serviceParam"]):::iri
c9(["en"]):::literal
c2(["wd:Q108171565"]):::iri
v1 --"wdt:P31"--> c2
v1 --"wdt:P6259"--> v2
v1 --"wdt:P6257"--> v3
v1 --"wdt:P6258"--> v4
subgraph s1["http://wikiba.se/ontology#label"]
style s1 stroke-width:4px;
c7 --"wikibase:language"--> c9
end