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Neptune

♆

Eighth and farthest planet from the Sun in the Solar System.

Statements about Neptune

Pronunciation Audio

Named After

Neptune
Unnamed
:bug: P3938

Parent Astronomical Body

Sun

Discoverer or Inventor

Urbain Jean Joseph Le Verrier
John Couch Adams
Johann Gottfried Galle
Heinrich Louis D'Arrest

Child Astronomical Body

29 items
Naiad
Thalassa
Despina
Galatea
Larissa
Proteus
Triton
Nereid
Halimede
Sao
Laomedeia
Psamathe
Neso
Hippocamp
Adams Ring
Arago Ring
Galle Ring
Lassell Ring
Le Verrier Ring
Courage
Égalité 2
Liberté
Égalité 1
Fraternité
Poseidosynchronous Orbit
Poseidostationary Orbit
Poseidocentric Orbit
S/2002 N 5
S/2021 N 1

Astronomic Symbol Image

Part Of

Outer Solar System

Instance Of

Ice Giant
Outer Planet
Follows
:
Uranus
Superior Planet
Followed By
:
Jupiter

Orbital Eccentricity

0.009

Mass

102,430 yottagram

Commons Gallery

Neptune (planet)

Semi-Major Axis of an Orbit

4,503,443,661 kilometre
30.07 astronomical unit

Described by Source

Otto's Encyclopedia
Statement Is Subject Of
:
Q23861051
Small Brockhaus and Efron Encyclopedic Dictionary
Statement Is Subject Of
:
Q24790972
Brockhaus and Efron Encyclopedic Dictionary
Statement Is Subject Of
:
Q24466612
New Encyclopedic Dictionary
Statement Is Subject Of
:
Q44722920
The Nuttall Encyclopædia
Subject Named As
:Neptune
Encyclopædia Britannica 11th Edition
Statement Is Subject Of
:
1911 Encyclopædia Britannica/Neptune
Meyers Konversations-Lexikon, 4th Edition (1885–1890)
Statement Is Subject Of
:
Q114391312
The New Student's Reference Work
Statement Is Subject Of
:
The New Student's Reference Work/Neptune
Granat Encyclopedic Dictionary
Statement Is Subject Of
:
Q131430847

Orbital Inclination

1.77 degree
Relative To
:
Ecliptic
6.43 degree
Relative To
:
Solar Equator
0.72 degree
Relative To
:
Invariable Plane

Argument of Periapsis

44.965 degree

Longitude of Ascending Node

131.784 degree

Radius

24,622 kilometre
Applies to Part
:
Mean
24,764 kilometre
Applies to Part
:
Equator
24,341 kilometre
Applies to Part
:
Polar

Unicode Character

♆
⯉

Has Part(s)

Magnetosphere of Neptune

Flattening

0.017

Image

Demonym

Neptunian
Neptunano

Distance From Earth

4,300,000,000 kilometre
Applies to Part
:
Perigee
4,600,000,000 kilometre
Applies to Part
:
Apogee

Magnetic Moment

2,200,000,000,000,000,000,000,000 joule per tesla

Apoapsis

4,537,039,826 kilometre

Periapsis

4,459,753,056 kilometre

Location

Outer Solar System

Orbital Period

164.8 year
60,193.2 day

Surface Gravity

11 metres per second squared

Density

1,638 gram per cubic centimetre

Mean Anomaly

256.228 degree

Area

7,618,300,000 square kilometre

Volume as Quantity

62,540,000,000,000 cubic kilometre

Epoch

J2000.0

Temperature

72 kelvin
Sourcing Circumstances
:
Mean

Different From

Neptun
Neptune
Neptuno
Neptunus

Diameter

49,528 kilometre

Stack Exchange Tag

https://astronomy.stackexchange.com/ ...

Studied By

Poseidology
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External Pages About Neptune

Dewey Decimal Classification

Dewey Decimal Classification

Encyclopædia Britannica Online ID

Encyclopædia Britannica Online

Getty Thesaurus of Geographic Names ID

Getty Thesaurus of Geographic Names

U.S. National Archives Identifier

U.S. National Archives

KBpedia ID

KBpedia

Interlingual Index ID

Interlingual Index

WordNet 3.1 Synset ID

WordNet 3.1 Synset

Encyclopedia of China (Third Edition) ID

Encyclopedia of China (Third Edition)

BBC Things ID

BBC Things

BabelNet ID

BabelNet