W3Ask











Amateur telescope
#ad
Solar telescope
#ad
Solar refracting telescope
#ad
70EQ Telescope
#ad
Computerized telescope
#ad


HOME  >  SCIENCE  >  ASTRONOMY

Size comparison: Earth vs Neptune



Size comparison between Earth and Neptune. We do not have many high quality images of Neptune because this planet was only visited by Voyager 2 on August 25, 1989. This planet is 4 times the size of Earth. Neptune's orbital period lasts 164 Earth years. The planet turns on itself in 16 hours. The temperature is very cold. Neptune is 30 times farther from the Sun than the Earth. Its composition is essentially made of hydrogen and helium. Over 14 moons levitate around Neptune.

Neptune
Neptune


Object Earth Neptune
TypeRocky planetGaseous planet
Age4.54 billion years4.5 billion years
Population7.7 billion0
Diameter12,742 km49,244 km
Mean radius6,371 km24,622 km
Mass5.97 × 1024 kg1.02 × 1026 kg
Orbital period365 days164.8 years
Rotation duration24 hours16 hours
Surface temperature
(average)
288 K
14.9 °C
58.7 °F
55 K
-218 °C
-360 °F
Surface gravity9.8 m/s²11.15 m/s²
Mean density5.5 g/cm31.63 g/cm3
Orbital distance150 million km4.5 billion km
Circumference40,075 km154,704 km
Surface area510 million km²7.6 × 109 km2
Volume1.08 × 1012 km362.5 × 1012 km3
Escape velocity11.1 km/s23.5 km/s
Average orbital speed29.78 km/s5.43 km/s
Aphelion152 million km4.54 billion km
Perihelion147 million km4.46 billion km
Semi major axis149 million km4.50 billion km
Inclination7.1°1.77°
Satellites 1 natural satellite
5 quasi-satellites
1,800 artificial satellites
14 natural satellites
1 quasi-satellite
0 artificial satellite
Surface pressure101.3 kPa1 Pa
Atmosphere composition 78% nitrogen (N2),
21% oxygen (O2),
~ 1% water vapor,
0.9% argon,
0.04% carbon dioxide
80% hydrogen,
19% helium,
1.5% methane,
0.019% hydrogen deuteride
Distance from the Milky Way center27,200 light years27,200 light years


Note: if one of the objects is not visible, it just means that it is too tiny to be displayed compared to the other one.


Note: Commissions may be earned from the links above.


This page contains references to products from one or more of our advertisers. We may receive compensation when you click on links to those products. For an explanation of our advertising policy, please visit this page.







Related posts:


Earth vs Mars size comparison
https://w3ask.com/earth-vs-mars-size-comparison/
Here is the comparison of the size between the Earth and Mars planets. So with the big blue and the little red.
Mars size compared to Earth
https://w3ask.com/mars-size-compared-earth/
Size of the planet Mars, compared to that of the Earth. We can see here how much the red planet which holds a lot of hope for the conquest ...
Earth vs Moon size comparison
https://w3ask.com/earth-vs-moon-size-comparison/
Here is the comparison of the size between the planet Earth and the Moon. So with the big blue and the little white. We can thus better see ...
Moon size compared to Earth
https://w3ask.com/moon-size-compared-earth/
Size of the Moon, the natural satellite of the Earth compared to that of its planet, the Earth.
Sun vs Earth size comparison
https://w3ask.com/sun-vs-earth-size-comparison/
Comparison of the size between the planet Earth and its star, the Sun. We can better assess the immensity of the star and the smallness of our ...








Computerized telescope
#ad


Solar refracting telescope
#ad


70EQ Telescope
#ad


Solar telescope
#ad


Amateur telescope
#ad





Languages

  • English
  • French
  • German
  • Italian
  • Dutch
  • Portuguese
  • Spanish

Know us

  • About
  • Contact
  • Categories list

Privacy

  • Privacy & Cookie Policy
  • Advertising policy
W3Ask © 2023. All rights reserved.
Disclaimer:

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

As an Amazon Associate I earn from qualifying purchases.

This page includes affiliate links for which the administrator of W3Ask may earn a commission at no extra cost to you should you make a purchase. These links are indicated using the hashtag #ad.


Information:

We do not assume any responsibility for the data displayed on our website. Please use at your own risk. Some or all of this data may be out of date or incomplete, please refer to the technical page on the respective manufacturer's website to find the latest up-to-date information regarding the specifics of a product.


Trading System Forex GadgetVersus GadgetVersus France