query-82b74967afdc407bd9f6dfc6da52be9d
Stars up to 18 light years away sorted by the nearest SELECT ?star ?starLabel ?distance ?unitLabel ?lightyears WHERE { { SELECT ?star ?distance ?unit ?lightyears WHERE { ?star wdt:P31 wd:Q523. ?star p:P2583/psv:P2583 ?statement. ?statement wikibase:quantityUnit ?unit. ?statement wikibase:quantityAmount ?distance. ?statement wikibase:quantityNormalized/wikibase:quantityAmount ?distanceNormalized. # convert to normalized unit (meter) BIND (?distanceNormalized / 9460800000000000 AS ?lightyears) FILTER( ?lightyears < 19) } LIMIT 100 } SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } } ORDER BY ?lightyears LIMIT 100
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 psv: <http://www.wikidata.org/prop/statement/value/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
# Stars up to 18 light years away sorted by the nearest
SELECT ?star ?starLabel ?distance ?unitLabel ?lightyears
WHERE
{
{
SELECT ?star ?distance ?unit ?lightyears
WHERE
{
?star wdt:P31 wd:Q523.
?star p:P2583/psv:P2583 ?statement.
?statement wikibase:quantityUnit ?unit.
?statement wikibase:quantityAmount ?distance.
?statement wikibase:quantityNormalized/wikibase:quantityAmount ?distanceNormalized. # convert to normalized unit (meter)
BIND (?distanceNormalized / 9460800000000000 AS ?lightyears)
FILTER( ?lightyears < 19)
}
LIMIT 100
}
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
ORDER BY ?lightyears
LIMIT 100
Query found at
- https://www.wikidata.org/wiki/User:Infovarius/Queries
- https://www.wikidata.org/wiki/Wikidata:Request_a_query/Archive/2020/03
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v5("?distance"):::projected
v6("?distanceNormalized")
v7("?lightyears"):::projected
v2("?star"):::projected
v3("?statement")
v4("?unit")
a1((" "))
a2((" "))
c3(["wd:Q523"]):::iri
c10(["bd:serviceParam"]):::iri
c12(["#91;AUTO_LANGUAGE#93;,en"]):::literal
f0[["?lightyears < '19^^xsd:integer'"]]
f0 --> v7
v2 --"p:direct/P31"--> c3
v2 --"p:P2583"--> a1
a1 --"p:statement/value/P2583"--> v3
v3 --"wikibase:quantityUnit"--> v4
v3 --"wikibase:quantityAmount"--> v5
v3 --"wikibase:quantityNormalized"--> a2
a2 --"wikibase:quantityAmount"--> v6
bind1[/"?distanceNormalized / '9460800000000000^^xsd:integer'"/]
v6 --o bind1
bind1 --as--o v7
subgraph s1["http://wikiba.se/ontology#label"]
style s1 stroke-width:4px;
c10 --"wikibase:language"--> c12
end