OJ 287

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

Place

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

OJ 287 is a BL Lacertae object 4 billion light-years from Earth that has produced quasi-periodic optical outbursts going back approximately 120 years, as first apparent on photographic plates from 1891.

Excerpt from the Wikipedia article “OJ 287”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Andres Rojas, CC BY-SA 4.0, via Wikimedia Commons.