Star

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

In graph theory, the star Sk is the complete bipartite graph K1, k, that is, it is a tree with one internal node and k leaves. Alternatively, some authors define Sk to be the tree of order k with maximum diameter 2, in which case a star of k > 2 has k − 1 leaves.

Excerpt from the Wikipedia article “Star (graph theory)”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Koko90, CC BY-SA 3.0, via Wikimedia Commons.