Property talk:P2227

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metallicity
abundance of elements that are heavier than hydrogen or helium in an astronomical object

Description	en:Metallicity
Represents	metallicity (Q217030)
Data type	Quantity
Template parameter	en:Template:Starbox detail metallicity
Domain	According to this template: term According to statements in the property: star (Q523), globular cluster (Q11276), open cluster (Q11387), dwarf spheroidal galaxy (Q654754), dwarf galaxy (Q190438) or substellar object (Q3132741) When possible, data should only be stored as statements
Allowed units	not applicable
Example	Sun (Q525) → 0.0122 Sirius (Q3409) → 0.5
Tracking: usage	Category:Pages using Wikidata property P2227 (Q37296000)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value User:Laboramus/Units/P2227 (Units used) Database reports/Constraint violations/P2227 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 302,272 Main statement 302,270 >99.9% of uses Qualifier 2 <0.1% of uses

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Units: “novalue”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2227#Units

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2227#Scope, hourly updated report, SPARQL

Type “star (Q523), globular cluster (Q11276), open cluster (Q11387), dwarf spheroidal galaxy (Q654754), dwarf galaxy (Q190438), substellar object (Q3132741)”: item must contain property “instance of (P31)” with classes “star (Q523), globular cluster (Q11276), open cluster (Q11387), dwarf spheroidal galaxy (Q654754), dwarf galaxy (Q190438), substellar object (Q3132741)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2227#Type Q523, Q11276, Q11387, Q654754, Q190438, Q3132741, SPARQL

Citation needed: the property must have at least one reference (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2227#citation needed

Single best value: this property generally contains a single value. If there are several, one would have preferred rank (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2227#single best value, SPARQL

This property is being used by: cs:Šablona:Infobox - vesmírný objekt ru:Шаблон:Звезда az:Şablon:Ulduz məlumat qutusu ca:Plantilla:Infotaula d'estel, ca:Plantilla:Infotaula d'objecte astronòmic eu:Txantiloi:Astronomia infotaula, eu:Txantiloi:Izar infotaula ha:Template:Infobox astronomical object, ha:Samfuri:Infobox astronomical object incubator:Template:Wp/shi/Infobox astronomical object kab:Talɣa:Infobox astronomical object shi:Talɣa:Infobox astronomical object Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)