# John E. Bortle

> John E. Bortle is an American amateur astronomer. He is best known for creating the Bortle scale to quantify the darkness of the night sky.

*American amateur astronomer*

**Canonical URL:** https://fame.am/person/john-e-bortle

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** United States
- **Status:** unknown
- **Gender:** male

## Bio

John E. Bortle is an American amateur astronomer. He is best known for creating the Bortle scale to quantify the darkness of the night sky.

## Fame
- **Popularity score:** 39.0 / 100
- **Momentum:** 0.0 / 100  (trend: FALLING)
- **Historical depth:** 4.8 / 100
- **Attention shift:** 0.0 / 100
- **Source confidence:** 30.0 / 100
- **Profile completeness:** 55.0 / 100

## Sources
- [John E. Bortle](https://en.wikipedia.org/wiki/John_E._Bortle)
- [John E. Bortle](https://fr.wikipedia.org/wiki/John_E._Bortle)
- [Джон Э. Бортль](https://ru.wikipedia.org/wiki/%D0%94%D0%B6%D0%BE%D0%BD_%D0%AD._%D0%91%D0%BE%D1%80%D1%82%D0%BB%D1%8C)
- [約翰·波特爾](https://zh.wikipedia.org/wiki/%E7%B4%84%E7%BF%B0%C2%B7%E6%B3%A2%E7%89%B9%E7%88%BE)
- [John E. Bortle](https://ca.wikipedia.org/wiki/John_E._Bortle)
- [Wikidata](https://www.wikidata.org/wiki/Q18379602)

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