Image: Wikimedia Commons

Sinope

Moon of Jupiter

Entitymoon of Jupiter irregular moonQ17433

Also known as Jupiter IX

Instance of: moon of Jupiter
, irregular moon

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Sinope, also known as Jupiter IX, is a natural satellite or moon of Jupiter. Sinope is one of the outermost irregular satellites of Jupiter, which orbit far from the planet on highly inclined and eccentric orbits. Sinope was discovered by Seth Barnes Nicholson at Mount Wilson Observatory in 1914.

Overview

All data

21 statements · 29% with external sources · numbers in brackets are citations

Discovered by: Seth Barnes Nicholson
Named after: Sinope
Orbits: Jupiter
Discovered: July 21, 1914
Eccentricity: 0.25
1
Sources
1.iop.org/EJ/article/1538-3881/120/5/2679/200233.html
View statement on Wikidata ↗
Mass: 75 exagram
1
Sources
1.ssd.jpl.nasa.gov/?sat_phys_parRetrieved 2020-09-05
View statement on Wikidata ↗
Albedo: 0.04
Semi-major axis: 23.4M km
Apparent magnitude: 18.1
Inclination: 158.6384 degree
Orbital period: -777.29 days
1
Sources
1.Stated in NASA FACTSssd.jpl.nasa.gov/?sat_phys_par
View statement on Wikidata ↗
Radius: 19 km
1
Sources
1.Stated in NASA FACTSssd.jpl.nasa.gov/?sat_phys_par
View statement on Wikidata ↗
Temperature: 124 K sourcing circumstances: mean

On other databases

5 identifiers linking Sinope across the web's reference databases

Data quality

statements

29%

externally sourced

Source last edited August 19, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Sinope (Q17433). Retrieved from https://aidb.si/e/sinope-Q17433