Jupiter Definition and 160 Threads

How much energy radiate Jupiter? I tried to find it, but not found. And how much energy it receive from Sun?

I was trying to get a couple of quick handheld shots of the waxing crescent moon with Venus with my Nex-5N last night, when just for fun I thought I'd snap Jupiter and see if the moons showed up with the Sony 200mm zoom. Much to my surprise I was able to see a couple of the moons with just a...

Homework Statement Jupiter has a core of liquid metallic hydrogen, with uniform density $\rho_c$, with radius $R_c$. This is surrounded by a gaseous cloud $R_g$, where $R_g>R_c$. Assume the cloud is of uniform density $\rho_g$. The problem also specifies that we are to assume both regions of...

Homework Statement Determine the mass of Jupiter using the data for the moon Io. Mass of Io: ##8.9*10^{22}## Period: ##1.77## Earth days Mean distance from Jupiter in km: ##422*10^3## Homework Equations Centripetal acceleration ##a = \frac{v^2}{R} ## Universal law: ##\frac{GMm}{R^2} ## The...

Homework Statement "In order to launch a space probe out of the solar system, it is decided to send it close to Jupiter. Why does this reduce the amount of fuel needed?" Homework EquationsThe Attempt at a Solution I can't think of anything at all. I am trying to think in terms of it gaining...

Hi! I've been reading articles (from back in 2008) that speculate on what could happen if one day, billions of years from now, the gravity of Jupiter were to pull Mercury out of orbit. One of the possibilities discussed is that Mercury could be ejected from the solar system...

I am rather a beginner to this field .So please forgive me if this is a very meaningless question. QUESTION: If I were to somehow increase Jupiter's mass by adding more hydrogen to its atmosphere, can i ever reach the stage where the mass of the planet becomes enough to undergo gravitational...

I have zero understanding on astrophysics, but hope to have help on determining the plausibility of an element to a story, traveling from Earth to Jupiter in four months, increasing acceleration with an orbit around first the Earth then the Sun, Orbit Earth to increase acceleration of ship...

August 18 - Conjunction of Venus and Jupiter. Conjunctions are rare events where two or more objects will appear extremely close together in the night sky. The two bright planets will come unusually close to each other, only a quarter of a degree, in the early morning sky. Also, the beehive...

How do we know for sure that that it's not possible to walk on Jupiter and that it is a gas planet? Did something ever land on it?

Does anyone know if the Jupiter Trojans (the asteroids that share an orbit with Jupiter) ever collide with moons or Jupiter itself?

Sorry about my poor English. I heard Jupiter emits lethal amounts of radioactivity (I don't know what kind). I also read things that suggested that there are areas where this radioactivity is more intense than on other areas. I wanted to know a few things: a) why does Jupiter emits so...

Hi everyone, I'm a college student enrolled in an astronomy course, and simply put, science and math in general are both quite possibly the two things I'm worst at! Anyways, I have a test coming up and our professor gave us a practice test, and after a lot of studying, I was able to figure out...

i have asked my physics and maths teacher a question which they could not answer, the question follows:- Does the large gravitational pull of Jupiter reduce the speed of light (on jupiter) ? Because what i understand so far that a photon has near no mass however it does a micro mass so it...

Hello. I know that more than 80 percent of the atmosphere of the Jupiter is the hydrogen. Does this fact mean that intense explosion possibly with the nuclear bomb burn all the gas of the Jupiter? There must be huge difference to the explosion on Earth.

Homework Statement two Jupiter-size planets are released from rest 1.50×1011m apart. What is their speed before crash Homework Equations GMm/r=U KE=-GMm/2r The Attempt at a Solution I tried setting U+KE=Uf+.5mv^2 and solve for V but it doesn't work :(

Venus Jupiter and Moon Conjunction HD Timelapse Huge Full Moon Rise - Realtime 2600mm 720p http://www.youtube.com/watch?annotation_id=annotation_177268&feature=iv&src_vid=ZiYhzJ8jiAg&v=n_wt0M8vm0c MOON ZOOM 1600x digital zoom Ive been quite impressed with the latest digital...

The question is: the wavelength of a spectral line on the left edge of Jupiter's equator is 499.98 nm, and the right edge is 500.02 for the same spectral line, what is the length of jupiter's day (in hours)? I know that its 10 hours but I need to show my work. I tried using many different...

How does Jupiter "protect" Earth from comets and such? I've commonly heard that Jupiter protects Earth by flinging comets out of an orbit that would otherwise leave them heading for Earth. I understand that Jupiter can throw comets and other objects out of their current orbit when they pass by...

It appears that a big planet size body collided with Jupiter in the recent past, What all are the evidences required to prove a recent big collision on a planet? 1) Jupiter's diameter was increased nearly 50% when comparing modern values with ancient Indian astronomical text Surya-siddhanta...

Homework Statement Io - mass: 8.9x1022kg period: 1.77 days mean distance from Jupiter: 422x103km Find the mass of Jupiter using the data for Io. Homework Equations ƩF=ma Fc=mv2/r GmM/ro2 v=2∏r/TThe Attempt at a Solution I am just unsure what should I put the time in?? Seconds...

Hello all, been meaning to make an account here and participate but haven't been around to it. So sorry that my first post is asking for homework help! :| Homework Statement The planet Jupiter has a moon Europa (m = 5x10^22kg) that is orbiting at a velocity of 14,000m/s at a distance of...

Hello, The problem is quite simple.You are an astronautics engineer in an established colony on europa,one of jupiter's moons and your boss asks you what would be the minimum velocity so that a cargo full of wastes or garbage is placed on a parbolic (neglecting the mass of europa versus the...

Homework Statement I've attached the lab sheets for the lab I am currently working on, and I am wondering if someone could help me with it. Homework Equations The Attempt at a Solution I am having difficulty with part two, steps 5-8. I have the slope from my excel graph 0.6458...

Hi I came across this excellent forum :) I am trying to figure out the solar wobble. When only looking at the Sun+Jupiter+Saturn, my intuitive interpretation is that the Sun will go faster/wobble more at Jupiter-Saturn-conjunction, and slower at oppositions. Is this correct? If so, there...

I'm developing a realistic sci-fi story in which power for the outer planets is produced from Jupiter's magnetic field. Now from Faraday's law I have V= N * A * (2*∏*RPM/60) B where N is the number of coils, A is the area of each coil, RPM is, well, RPM, and B is the field strength. I've...

The Extrasolar Planets Encyclopaedia Exoplanet Orbit Database | Exoplanet Data Explorer Numerous planets outside the Solar System have been discovered, and for some curious reason, a large number of them are around Jupiter's mass, but much closer in than one would expect. The usual theory...

Homework Statement You may assume circular planetary orbits. a. Calculate the velocity (relative to Earth) at Earth's orbit of the Hohmann transfer orbit that is tangent to both Earth's orbit and Jupiter's orbit. b. calculate the minimum velocity necessary to launch a spacecraft from...

I am taking an astronomy class because I am interested in it and wanted to know more. I love all I am learning unfortunately my math skills are holding me back from getting all that I can out of this class. I realize this might not be the toughest math problem but can someone explain help me out...

Given the above quote reference Helium within our Heliosphere, I have a grouping of questions for the electromagnetic wise. If Earth and Jupiter were both placed within a dense Helium plasma region/field of our Heliosphere at the same time; and considering He plasma's high electrical...

Homework Statement One of the moons of Jupiter, discovered by Galileo, has an orbital period of 1.44x106s and a mean orbital radius from the centre of Jupiter of about 1.90x109m. From this information, determine the mass of planet Jupiter. Homework Equations I have made a list of...

It is closer to Sun than the distance between Sirius A and B. Yes I know that the Sun wound't expand so much to touch Jupiter, however it would be anyway blowing its mass away. Would Jupiter have strong enough gravitation to absorb significant amount of mass?

With its current mass, can Jupiter become a stable star? Suppose Jupiter was artificially compressed to only a fraction of its present size (a hypothetical situation occurring in at least one work of science fiction), would the gravity-radiation pressure equilibrium be reached at all? It appears...

Homework Statement An observer 5pc away observes the sun in the plane of Jupiter orbit. He cannot resolve either object but he notices a slight dimming of the star when Jupiter passes across the sun in his vision. Find the magnitude of the sun with and without Jupiter in front of it...

Hi - just a question about the Jupiter - Venus conjunction that's happening at the moment. How often does it happen that the two planets appear this close in the sky? Or, better, how could I calculate this?

I couldn't help notice how bright Jupiter appeared last night with the crescent moon and Venus by her side. It appeared almost as bright as Venus. Question: Since Jupiter is on the other side of the sun from Venus right now (right?), shouldn't it be rather dim? I mean it's distance from us...

I was trying to calculate possible orbit of a potential exomoon of a hot Jupiter within habitable zone of a red dwarf. Everything (heat absorbed, reasonably within Hill sphere, far from Roche limit) seamed reasonable. However, I encountered one problem - hot Jupiter should be tidally locked. It...

Problem: Calculate spin angular momentum of Jupiter Relevant Equations: L = Iω I = (2/5)*M*r2 (for a uniform sphere) ω = (G*M/r3)1/2 (I calculated this earlier in the homework, but I've looked it up and I think it's right) Attempt at a Solution: I thought this should be pretty...

Homework Statement Using a modified version of Kepler's third law and data about Sinope calculate the mass of Jupiter. Keplers Third Law: p^2=a^3 Newton's Version: p^2=a^3 / M + M p^2 = a^3/M M=a^3/p^2 Sinope's period of orbit = 2.075 years Average orbital distance of Sinope is 0.158...

I've recently taken a spectral image (visible wavelengths) of Jupiter. After calibrating my spectral analysis program I've been able to get wavelength per pixel and produce a graph of intensity vs wavelength. I have an absorption spectra of Jupiter, but I am unaware on how to correlate which...

Just thought I'd share my terrible (but awesome) pics of Jupiter. First decent photo of a planet I've been able to take so far.

Physics puzzle: A 1" radius 7 billion K temp. ball is activated inside Jupiter... Physics puzzle: A 1" radius, 7 billion K temp. fireball is activated inside Jupiter...from an artificially induced fission reaction of .04kt. It is activated deep enough into Jupiter to be under 40,000,000...

I was wondering what would g equal on Jupiter if you could stand on its surface? I wrote a computer programme (my 1st one) to work g out anywhere and when i plugged in the numbers for Earth it gave me 9.799 which is correct and for Jupiter it gave me 24.778 but when I looked it up I kept finding...

hello everybody can anyone help me find saturn and Jupiter on a given night. i have a medium powered reflective telescope and i have to organize an astronomy night on the 3rd of june thanks.

Homework Statement Two satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution every 16 h. The other satellite has orbital radius 4.0r. How long does the second satellite take to make one revolution around Jupiter? A. 130 hours B. 120 h C. 140 h D...

One complete orbit of perihelion precession of Earth takes about 100,000 years How long time take one complete orbit of the perihelion precession Jupiter ?

Is there someway to inhabit the giant planets in our solar system? (I don't mean on their moons, but actually on the planet itself).

Homework Statement An asteroid is located between Mars and Jupiter. It is thought that a planet once orbited here but was somehow destroyed and broken up into small chunks(perhaps by getting hit by a comet or asteroid). If an asteroid in this belt has an average distance from the sun of 500 *...

Homework Statement What is the rotational kinetic energy of Jupiter? Assume Jupiter is a uniform sphere with a rotational period of 9.81 hr. Homework Equations I= 2mr^2/5 Krot= I*omega^2/2 omega= 2pi/T The Attempt at a Solution i found the omega using the equation above and the...

Does anybody know? I tried googling can't seem to turn up any answers