what is mass of the sun?
341512
Newton's laws of motion together with his law of gravity give a relation among\n\n    * the period P of a planet's orbit.\n    * the distance a from the planet to the Sun.\n    * a constant G measured in laboratory experiments.\n    * the mass M of the Sun. \n\n(For our purposes, assume the orbits are circles. Also assume that the mass of a planet is tiny compared to the mass of the Sun.)\n\n\nUsing this relation with P and a for the Earth gives the mass of the Sun.\n\nM ~ 2 x 1030 kg.\n\nWe will use this relation later on to get the masses of other stars.\n\nIt can also be used to get the masses of galaxies!\n\nDavison E. Soper, Institute of Theoretical Science, University of Oregon, Eugene OR 97403 USA soper@bovine.uoregon.edu
184801
about the same size as the sun, it's average in many ways.\nthe diameter of the sun is about 860,000 miles.
867403
The sun is made of hydrogen.
515258
There are 2 kinds of mass:\n\nGRAVITATIONAL MASS:  The mass you can calculate from Newton's Law of Gravity:  F = G*m1*m2/r^2\nhere m1 and m2 are the gravitational masses of two objects.\n\nINERTIAL MASS:  The mass one can calculate from Newton's 2nd Law of mechanics:  F = m*a\nhere m is the inertial mass of an object.\n\nThey are equivalent (according to Einstein's General Relativity), but it doesn't mean that having one means having the other.  So photons (light) have gravitational mass, but not inertial mass, and so they can travel at the speed of light and at the same time be affected by gravity.\n\nHope I helped.
26504
The mass is a property of an object, a fundamental measure of the amount of matter in the object. The usual symbol for mass is m and its SI unit is the kilogram.\n\nThe weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.
937052
The Sun is roughly 100 times the diameter of Earth, which is about one million times the volume.
168576
- The Sun is so large, you could fit over one million Earths inside it.\n- The Sun consumes four million tons of hydrogen every second. Even so, it's so vast that our star has enough fuel to keep it shining for another five billion years.\n- The Sun's energy output is estimated to be 386 billion, billion megawatts. So in 15 minutes our Sun radiates as much energy as mankind consumes in all forms, during an entire year.\n\n- The sun is fascinating ! :)
873109
Weight is the amount of force on an object and mass is the amount of matter in that object
363110
During fusion hydrogen is converted into helium and the mass does NOT stay the same.  A small fraction of the mass is lost to energy, and this how the sun produces all its energy.  So yes the sun is losing mass and the force of gravity is decreasing but the fraction of the mass that it is losing is negligible.
334251
The sun is not a planet.
111372
mass is the amount of matter, weight is the force gravity exerts on an object. mass stays the same, but weight changes if you go to the moon etc.
17651
I assume here you're asking about the Earth's mass (mass and weight are different concepts and often confused).  The earth's mass is 5.9736 x 10^24 kg.
665122
mass of Earth = 5.9742 × 1024 kilograms
449932
Your question doesn't have much sense, since the concept of "weight" exists for things that have a small mass relatively to the one they're next to (eg. a person and the earth)\n\nYou might instead ask what is the MASS of a star.\n\nOur Sun has a mass of approx 1.9891×10^30 kg,\nbut some have even 150 times the mass of the Sun (eg. Eta Carinae)
95148
Actually, the mass of a proton is 1.00727664669 atomic mass units.\n\nAn atomic mass unit is defined such that Carbon 12 is exactly 12.  The carbon atom weighs less than 12 times the proton (because of nuclear binding energy).
279099
The average mass of the atmosphere is about 5,000 trillion metric tons. According to the National Center for Atmospheric Research, "The total mean mass of the atmosphere is 5.1480 x 1018 kg with an annual range due to water vapor of 1.2 or 1.5 x 1015 kg depending on whether surface pressure or water vapor data are used; somewhat smaller than the previous estimate.
756356
http://en.wikipedia.org/wiki/Sun