SHMARQL

hydrogen line

<http://www.wikidata.org/entity/Q1406191>

spectral line of hydrogen state transitions
hydrogen line
rdfs:label
"hydrogen line"@en
skos:altLabel
"21 centimeter line"@en
"21 cm line"@en
"H I line"@en
"H one line"@en
"HI line"@en
schema:description
"spectral line of hydrogen state transitions"@en
schema:dateModified "2026-09-27T17:33:07+00:00"^^xsd:dateTime
schema:version 2550111652
wikibase:identifiers 7
wikibase:sitelinks 27
wikibase:statements 12
p:P10283 wd:statement/Q1406191-D9D06D16-F933-4747-84BD-EAFBB3218BE6
p:P1417 wd:statement/Q1406191-895F9C77-6AD2-476B-B8BC-5B3F7D8BDFB1
p:P18 wd:statement/Q1406191-3cb13e52-4a4f-ec21-b9a4-314d22026558
p:P2144 wd:statement/Q1406191-356078b6-4343-8361-e600-48495c3b7849
p:P2808 wd:statement/Q1406191-878710b0-4c60-7975-67cd-19d807fec8e4
p:P31 wd:statement/Q1406191-6a157b3b-4441-63ff-2e79-fc50ed8a62aa
p:P373 wd:statement/Q1406191-F1DD4069-5E58-4CEE-8238-686DCA6CB25F
p:P4215 wd:statement/Q1406191-65103C75-2FEE-4E34-8FAC-A6C4CB4CA7E4
p:P4466 wd:statement/Q1406191-8F0193B3-1573-4487-A6A7-895641AD64C9
p:P6366 wd:statement/Q1406191-9E411F28-F7C7-431C-AFC5-4909EE26CF62
p:P646 wd:statement/Q1406191-DFC7A3ED-D9BF-4490-9C78-27C3D80B5423
p:P8313 wd:statement/Q1406191-60D7B030-B6ED-449E-862F-A8A8C2F756BD
p:direct-normalized/P4466 <http://astrothesaurus.org/uat/690>
p:direct-normalized/P6366 <https://makg.org/entity/164918935>
wdt:P10283 "C164918935"
wdt:P1417 "topic/21-centimetre-radiation"
wdt:P18 <http://commons.wikimedia.org/wiki/Special:FilePath/Hydrogen-SpinFlip.svg>
wdt:P2144 1420405751.7667^^xsd:decimal
wdt:P2808 21.10611405413^^xsd:decimal
wdt:P31 spectral line
wdt:P373 "21cm line"
wdt:P4215 "hydrogen line"
wdt:P4466 "690"
wdt:P6366 "164918935"
wdt:P646 "/m/02why3"
wdt:P8313 "21_cm-linjen"
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data from SPARQL profile: Wikidata