According to NASA's figures, the mass of Neptune is 102,440,000,000,000,000,000,000,000 kg or 102.4 quadrillion kg, or if you want the scientific notation 1.0244 x 1026 kg. This makes Neptune around 17 times the mass of the Earth.
Neptune Mass: ~1.0*1026 kg Volume: ~6.3*1013 km3
Diameter : 33,000 miles Mass : 1.0243×1026 kg 17.147 Earths
By the law of conservation of mass, it is still 28 kg.
The mass of neptune is 1.0244 x 10 (to the 26th).
According to NASA's figures, the mass of Neptune is 102,440,000,000,000,000,000,000,000 kg or 102.4 quadrillion kg, or if you want the scientific notation 1.0244 x 1026 kg. This makes Neptune around 17 times the mass of the Earth.
Neptune Mass: ~1.0*1026 kg Volume: ~6.3*1013 km3
Diameter : 33,000 miles Mass : 1.0243×1026 kg 17.147 Earths
By the law of conservation of mass, it is still 28 kg.
The mass on Neptune is 50kg although this is only due to mass being gravity independant; assuming you mean it's weight.It's Weight on Neptune would be: 600kg.(weight = mass * g)
1 kilo is normally used to refer to 1 kilogram. This is a measure of mass and is NOT the same as weight. A mass of 1 kg is a mass of 1 kg - wherever it is.
The mass of neptune is 1.0244 x 10 (to the 26th).
Mercury: diameter 4880 km mass 3.302e+23 kg Venus: diameter 12104 km mass 4.856e+24 kg Earth: diameter 12756 km mass 5.9742e+24 kg Mars: diameter 6796 km mass 6.419e+23 kg Jupiter: diameter 142984 km mass 1.899e+27 kg Saturn: diameter 120536 km mass 5.685e+26 kg Uranus: diameter 51118 km mass 8.683e+25 kg Neptune: diameter 49528 km mass 1.0243e+26 kg
Uranus is the 3rd largest planet in diameter but in mass (8.683e25 Kg) it's less then Neptune
Neptune has a mass of 1.0243×1026 kilograms, or about 17.147 times that of Earth. Wikipedia has additional information, and a link is provided below to their post on this, the new "last planet" now that Pluto has been "demoted" to a planetary body. Neptune's density is 1.638 g/cm³. That means that in every cm cubed it weighs 1.638 grams.
The sun is about 19,000 times the mass of Neptune.
Please don't confuse "mass" with "weight". Those are two quite different concepts. "Mass" is what is measured in kilograms, or in tons. From Wikipedia, Neptune's mass is 1.0243×1026 kg. This is equivalent to 1.0243×1023 tons, but for such large numbers, kilograms are commonly used.