Property talk:P1090

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redshift
the redshift measure of an astronomical object

Description	the redshift of an astronomical object.
Represents	redshift (Q76250)
Data type	Quantity
Template parameter	Template:Infobox galaxy z
Domain	According to this template: astronomical object (Q6999) outside the Solar System According to statements in the property: astronomical object (Q6999) or astronomical phenomenon (Q751989) When possible, data should only be stored as statements
Allowed values	−0.01 ≤ 𝓧 ≤ 1,200
Allowed units	not applicable
Example	NGC 1300 (Q487211) → 0.005252 Messier 82 (Q14026) → 0.000677 Sloan Great Wall (Q497745) → 1.85
Source	referred articles, astronomical databases as SIMBAD (Q654724) and NASA/IPAC Extragalactic Database (Q488563) (note: this information should be moved to a property statement; use property source website for the property (P1896))
Tracking: usage	Category:Pages using Wikidata property P1090 (Q28919905)
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) Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P1090 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,279,202 Main statement 1,279,199 >99.9% of uses Qualifier 3 <0.1% of uses

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

List of violations of this constraint: Database reports/Constraint violations/P1090#Units, hourly updated report

Type “astronomical object (Q6999), astronomical phenomenon (Q751989)”: item must contain property “instance of (P31)” with classes “astronomical object (Q6999), astronomical phenomenon (Q751989)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1090#Type Q6999, Q751989, hourly updated report, SPARQL

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/P1090#single best value, SPARQL

Range from “-0.01” to “1200”: values should be in the range from “-0.01” to “1200”. (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/P1090#Range

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/P1090#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (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/P1090#Entity types

This property is being used by: no:Mal:Infoboks galakse ru:Шаблон:Галактика he:תבנית:גלקסיה cs:Šablona:Infobox - vesmírný objekt my:Template:Infobox astronomical event, my:Template:Infobox astronomical object ur:سانچہ:خانہ معلومات فلکیاتی واقعہ hy:Կաղապար:Տեղեկաքարտ Գալակտիկա, hy:Կաղապար:Տեղեկաքարտ Աստղագիտական ​​իրադարձություն ar:قالب:معلومات حدث فلكي en:Template:Infobox astronomical event, en:Template:Infobox astronomical object fa:الگو:Infobox astronomical event hi:साँचा:Infobox astronomical event id:Templat:Infobox astronomical event mk:Шаблон:Инфокутија Астрономска појава th:แม่แบบ:Infobox astronomical event vi:Bản mẫu:Infobox astronomical event zh:Template:Infobox astronomical event ast:Plantía:Ficha d'oxetu celeste ca:Plantilla:Esdeveniment astronòmic, ca:Plantilla:Infotaula d'objecte astronòmic eu:Txantiloi:Astronomia infotaula diq:Şablon:Galaksi, diq:Şablon:Galaksiye uk:Шаблон:Квазар be-x-old:Шаблён:Галяктыка 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 hu:Sablon:Galaxis infobox be-tarask:Шаблён:Галяктыка Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)