List of circles of latitude explained

This article contains a list of notable circles of latitude on Earth.

Day length for any latitude, and sunrise and sunset times on any longitude, can be calculated for any date using, for example, the sunrise equation. Online calculators are also available, such as from NOAA.^[1]

Northern Hemisphere

Latitude	Geographic crossings	Settlement crossings	Political boundaries	Other
90°N
89°N
88°N	Lies entirely in the Arctic Ocean
87°N	Lies entirely in the Arctic Ocean
86°N	Lies entirely in the Arctic Ocean
85°N	Lies entirely in the Arctic Ocean
84°N	Lies entirely in the Arctic Ocean
83°N
82°N
81°N
1°N			Equatorial Guinea and Gabon^[2]
Example	Example	Example	Example	Example
Example	Example	Example	Example	Example-->

Northern Hemisphere

See main article: article and Northern Hemisphere.

Equator

The equator, a circle of latitude that divides a spheroid, such as Earth, into the northern and southern hemispheres. On Earth, it is an imaginary line located at 0 degrees latitude.

Southern Hemisphere

See main article: article and Southern Hemisphere.

Notes and References

1. Web site: NOAA . NOAA Solar Calculator . ESRL Global Monitoring Laboratory - Global Radiation and Aerosols . 28 January 2024.
2. Web site: Equatorial Guinea–Gabon . Sovereign Limits . 7 October 2022.