Property talk:P399

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companion of
two or more astronomic bodies of the same type relating to each other

Description	two or more objects of the same type as the subject, relating to each other : star systems, double star clusters, interacting galaxies...
Data type	Item
Domain	According to this template: astronomic bodies - astronomical object (Q6999) According to statements in the property: astronomical object (Q6999) When possible, data should only be stored as statements
Allowed values	astronomical object (Q6999) of same nature as the subject (note: this should be moved to the property statements)
Example	NGC 869 (Q482454) → NGC 884 (Q33571) Delta Cephei (Q13024) → HD 213307 (Q66531076)
Tracking: same	no label (Q42533433)
See also	sidekick of (P2546)
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 By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers 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 Database reports/Constraint violations/P399 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4,526 Main statement 4,524 >99.9% of uses Qualifier 2 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

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

List of violations of this constraint: Database reports/Constraint violations/P399#Type Q6999, hourly updated report, SPARQL

Value type “astronomical object (Q6999)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value astronomical object (Q6999) (or a subclass thereof). (Help)

List of violations of this constraint: Database reports/Constraint violations/P399#Value type Q6999, hourly updated report, SPARQL

Symmetric property: if [item A] has this property linked to [item B], then [item B] should also have this property linked to [item A]. (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/P399#Symmetric, SPARQL

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/P399#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/P399#Entity types

This property is being used by: no:Mal:SammenlignLedsager ca:Plantilla:Estrella, ca:Plantilla:Infotaula d'estel, ca:Plantilla:Infotaula d'objecte astronòmic oc:Modèl:Estela eu:Txantiloi:Izar infotaula Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

consistency gadget

Added to User:JonnyJD/consistency_check.js --JonnyJD (talk) 01:06, 18 November 2013 (UTC)