attosecond

SI unit of time equal to one quintillionth of a second or 1/1,000th of a femtosecond
Intangible unit_of_time Q2483628

Facts

5 properties
Conversion to SI unit
1e-18[4]
Measured physical quantity
duration[3]
Unit symbol
as, as[6][7]
Wikidata SPARQL query equivalent
wd:Q2483628 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)[5]
🏷️ Also known as
en attosecond en as ar اتوثانية ar أتوثانية ar أوتوثانية cs attosekunda de Attosekunde de as es as es attosegundo fa اتو ثانیه fa اتوثانیه fi attosekunti fr as fr attoseconde he אטושנייה hu attomásodperc hu attoszekundum hu trilliomodmásodperc it attosecondo
🔖 Identifiers · 10
OpenAlex ID
C143357915
Freebase ID
/m/0kbjk
Great Norwegian Encyclopedia ID
attosekund
Microsoft Academic ID (discontinued)
143357915
OmegaWiki Defined Meaning
380707
Ontology of units of Measure 2.0 unit ID
attosecond-Time
Quora topic ID
Attosecond
UCUM code
as
Wolfram Language unit code
"Attoseconds"
Wurvoc.org measure ID
attosecond-time

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Instance of 2
Named after 2
Press Enter · cited answer in seconds

Summary

attosecond is an unit of time[1].

Body

Works and Contributions

Things named for attosecond include attophysics[8], a branch of physics[9] and attoscience[10], a branch of science[11].

Why It Matters

Entities named for attosecond include attophysics[8], a branch of physics[9] and attoscience[10], a branch of science[11].

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). attosecond. Retrieved November 7, 2026, from https://4ort.xyz/entity/attosecond
MLA “attosecond.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 Nov. 2026, https://4ort.xyz/entity/attosecond.
BibTeX @misc{4ortxyz_attosecond_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{attosecond}}, year = {2026}, url = {https://4ort.xyz/entity/attosecond}, note = {Accessed: 2026-11-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): attosecond — https://4ort.xyz/entity/attosecond (retrieved 2026-11-07)

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