What is the mass of comet Wild 2?
[1] The Dust Flux Monitor Instrument (DFMI) made direct measurements of the dust environment in the mass range 10−14 < m < 10−5 kg at comet 81P/Wild 2 during the Stardust flyby on 2 January 2004.
What is Wild 2 in the solar system?
81P/Wild (Wild 2) (Wild is pronounced vilt) is a small comet with the shape of a flattened sphere and measures about 1.03 x 1.24 x 1.71 miles (1.65 x 2 x 2.75 kilometers). It takes Wild 2 nearly six and a half years (6.41) to orbit the Sun once. Wild 2 last reached perihelion (closest approach to the Sun) in 2016.
Which dwarf planet is the largest?
Eris is one of the largest known dwarf planets in our solar system. It’s about the same size as Pluto, but is three times farther from the Sun. Eris first appeared to be larger than Pluto.
Which object in our solar system has the greatest density?
Earth is closer to that limit than anything else in our Solar System, and the combination of its relatively dense composition and its enormous self-gravity, as we’re 18 times as massive as Mercury, places us alone as the densest object in our Solar System.
Which planet day is longer than year?
Venus
Which is bigger sun or Jupiter?
Jupiter, the largest planet in the solar system, has a diameter of about 87,000 miles. (And even Jupiter is tiny compared to the Sun, which is roughly ten times wider than Jupiter, at about 864,000 miles.)
What planet is bigger than the sun?
Although the Sun looks small from Earth, it is really much, much bigger than our planet (and any other planet in the solar system)….Big, Bigger, Biggest.
| Body | Diameter (Earth = 1) |
|---|---|
| Jupiter | 11.19 |
| Saturn | 9.40 |
| Uranus | 4.04 |
| Neptune | 3.88 |
What is the biggest thing in the universe?
Hercules-Corona Borealis Great Wall
Is Jupiter a failed brown dwarf?
What about substellar brown dwarfs? Our largest planet still doesn’t come close to these “almost stars.” Astronomers define brown dwarfs as bodies with at least 13 times Jupiter’s mass. So, while Jupiter is a planetary giant, its mass falls far short of the mark for considering it a failed star.
What if Jupiter exploded?
If it exploded, the energy from the explosion would throw the traditional outer and inner solar system planets into a free-for-all, sending the larger gas giants either towards the sun or flinging them out of the solar system altogether.
Can Earth survive without Jupiter?
The answer is yes … and no. Some astronomers believe that one reason Earth is habitable is that the gravity of Jupiter does help protect us from some comets. Jupiter’s gravity is thought to sling most of these fast-moving ice balls out of the solar system before they can get close to Earth.
What if Jupiter is next to Earth?
If Jupiter were as close to Earth as the moon, our planet would become one of the gas giant’s moons. Its gravity would also bring volcanic destruction to Earth.
Can Jupiter be destroyed?
Located some 1000 light years away, the planet is about 20 percent more massive than Jupiter, but could eventually be torn apart by gravitational forces from the star itself. …
Can humans destroy Jupiter?
Jupiter is made of mostly hydrogen and helium gas. So, trying to land on it would be like trying to land on a cloud here on Earth. There’s no outer crust to break your fall on Jupiter.