If all the asteroids in the solar system formed into a planet what size would the planet be?

Question

I mean someone to told me that they were once a planet already but billions of years ago it broke up, how big would it be if it was still a planet?

Answer 1

Less than the Moon

http://en.wikipedia.org/wiki/Asteroid_belt

Answer 2

The best report would be the aquarius of zion. The outer
station of the nucleonic periods shows that the measuring
bodies in heavens are equalizing and this rare reaction is now
moving asteroids above belts. Though activated weather lead
is invisible in its neutron position charging up to 1 million
miles wide to form clouds of smoke. The inner core of atoms
that is available to these masses could be worm jumpgate
though it never does due to it is the archaic centrifugal of
element gravitational pull. Near these the raw planet system
without much oxygen, plant, or life would have the larger
asteroid potential in the size of 100,000 miles an even number
that would also form equivaleted orbiter storms.

Answer 3

I was thinking about something like this earlier today, Hmm!

First, NOT all of the asteroids floating about are from one planet. They are pieces of many different heavenly bodies which, for one reason or another, have broken apart. Much of this material is left over from the very begining of time and has been floating about since then!

Had these pieces of rock all come from one planet, it would have been (IMHO) the biggest planet in the entire universe! Jupiter would have been a pin point by comparison.

IMHO,

The Ol' Sasquatch Ü

Answer 4

That's a good question. The largest of them in the asteroid belt, Ceres, isn't big enough to be a planet really. I'm sure I have the answer to this in my astronomy book at school. If it wasn't the smallest planet, it would at least be a small one. I'd very much doubt that it would be as large as the Earth or even as large as Mars.

Answer 5

Even though we now know of some 342,500 asteroids and Minor Planets (about 1000 of these being Trans-Neptunian Objects), most are very small and the answer is still: "less than the mass of the moon". This may seem surprising,

OnIy about 220 asteroids are larger than 100 km in diameter. The biggest asteroid is 1 Ceres, which is about 1000 km across. The total mass of the Asteroid belt (which contains 98.5% of all asteroids) is estimated to be 3.0-3.6×10^21 kilograms, which is 4% of the Earth's Moon. Of that total mass, one-third is accounted for by Ceres alone.

Mass of Ceres: 9.46 ± 0.04 × 10^20 kg
Mass of the Moon: 7.3477×10^22 kg (0.0123 Earths)

As regards whether the asteroids are, as you assert the remnants of a large planet that exploded, that view is now out of favour. According to Wikipedia:

"A common hypothesis agreed upon by most astronomers, called the nebular hypothesis, is that during the first few million years of the solar system's history, planets formed by accretion of planetesimals. Repeated collisions led to the familiar rocky planets and to the gas giants. However, if the average velocity of the collisions is too high, the shattering of planetesimals dominates over accretion, and planet-sized bodies cannot form.

The region lying between the orbits of Mars and Jupiter contains many strong orbital resonances with Jupiter, and planetesimals in this region were (and continue to be) kicked around too strongly to form a planet. The planetesimals instead continue to orbit the Sun as before.

An old hypothesis, much less favoured nowadays, was that the asteroids in the asteroid belt are the remnants of a destroyed planet called Phaeton. The key problems with this hypothesis are the staggering amount of energy required to achieve this kind of effect, and the low combined mass of the asteroid belt (less than that of Earth's moon)."

For comparison purposes:

Name Mass in yottagrams Mass in kg Type of object

Solar System 2,019,390,000 Yg (2.0194 × 10^30 kg)
1 Sun 1,989,100,000 Yg (1.9891 × 10^30 kg) star
2 Jupiter 1,899,000 Yg (1.899 × 10^27 kg) 5th planet
3 Saturn 568,460 Yg (5.6846 × 10^26 kg) 6th planet
4 Neptune 102,430 Yg (1.0243 × 10^26 kg) 8th planet
5 Uranus 86,832 Yg (8.6832 × 10^25 kg) 7th planet
6 Earth 5,973.6 Yg (5.9736 × 10^24 kg) 3rd planet
7 Venus 4,868.5 Yg (4.8685 × 10^24 kg) 2nd planet
8 Mars 641.85 Yg (6.4185 × 10^23 kg) 4th planet
9 Mercury 330.2 Yg (3.302 × 10^23 kg) 1st planet
10 Ganymede 148.2 Yg (1.482 × 10^23 kg) satellite of Jupiter
11 Titan 134.5 Yg (1.345 × 10^23 kg) satellite of Saturn
12 Callisto 107.6 Yg (1.076 × 10^23 kg) satellite of Jupiter
13 Io 89.4 Yg (8.94 × 10^22 kg) satellite of Jupiter
14 Moon 73.5 Yg (7.349 × 10^22 kg) satellite of Earth
15 Europa 48.0 Yg (4.80 × 10^22 kg) satellite of Jupiter
16 Triton 21.5 Yg (2.147 × 10^22 kg) satellite of Neptune
17 Eris ~15 Yg (~1.5 × 10^22 kg) dwarf planet
18 Pluto 12.9 Yg (1.305 ± 0.007 × 10^22 kg) dwarf planet
19 (136108) 2003 EL61 ("Santa") 4.2 Yg (4.2 ± 0.1 × 10^21 kg) Kuiper belt object
20 Titania 3.5 Yg (3.526 × 10^21 kg) satellite of Uranus

Answer 6

Theists might come across a manner of believing air became sturdy and rocks are made up of wax if their purchase-bull's stated so. it extremely is not impossible for planets to collide, all that it would take is a huge planet length asteroid to bypass to our photograph voltaic equipment to thoroughly disrupt each and all the orbits. the closest galaxy to us is on a head on collision with ours in approximately 5 billion years time. i don't think of there will be any arguments then if we have not blown ourselves up or bred ourselves out of life by then. practising Shaman... quantum physics rocks.

Answer 7

Listen to Zefram. Smaller than the Moon. He has it right and cited a source too.

Answer 8

it would be twice the size of jupiter only that it is more massive since asteroids are made of "rocky elements" compared to the component of jupiter which is gaseous

Answer 9

About the size of Saturn.

Answer 10

Size of Neptune or smaller.