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Questions tagged [jupiter]

Questions regarding Jupiter, the 5th and largest planet in the Solar System.

4 votes
4 answers
5k views

What would Jupiter look like from a Galilean moon?

If I were on a Galilean moon of Jupiter, like Europa or Ganymede, what would the planet look like? (Let's say I'm on a space station that provides atmosphere to make it slightly less unrealistic.) ...
eje211's user avatar
  • 143
10 votes
1 answer
597 views

Why does Saturn have a more prominent equatorial bulge and higher flattening ratio than Jupiter despite rotating slower?

It is my understanding that a planet's equatorial bulge is caused by the centrifugal force produced by its rotation, and the faster a planet rotates the bigger the bulge and flattening ratio of a ...
user177107's user avatar
  • 2,699
23 votes
2 answers
10k views

Is Jupiter a failed star?

The elemental make-up of Jupiter is about entirely hydrogen and helium, along with a very small fraction of the atmosphere being made up of compounds such as ammonia, sulfur, methane, and water vapor. ...
Ammanuel's user avatar
  • 359
13 votes
1 answer
1k views

Is it possible to see Callisto with the naked eye when it's at its greatest elongation from Jupiter?

A quick search shows that Callisto has an apparent magntidue of 5.65, which would make it easily visible under relatively dark skies. Being the farthest Galilean moon, does it ever get far away from ...
user177107's user avatar
  • 2,699
1 vote
1 answer
3k views

How frequently do Jupiter & Regulus have triple conjunctions?

I am wanting to know if the triple conjunction of Jupiter with Regulus in: Sep 10, 3 BC Feb 7, 3 BC & May 8, 2 BC with Jupiter later having a conjunction with Venus in Jun 17, 2 BC has happened ...
Frida's user avatar
  • 13
15 votes
2 answers
2k views

During solar eclipses on Jupiter, can the moon(s)' shadow(s) on the surface be seen from Earth with a telescope?

All of the Galilean moons are large and close enough to Jupiter that they can completely eclipse the sun and allow a solar eclipse to happen. My question is can an observer from Earth, see the moon(s)...
user177107's user avatar
  • 2,699
3 votes
0 answers
54 views

Would magnetic reversals on Ganymede affect radiation levels at the surface?

Currently the intrinsic magnetic field of Ganymede is anti-aligned with respect to the Jovian magnetic field. If this situation changed to become aligned, either due to magnetic reversals of the ...
user avatar
8 votes
1 answer
3k views

Size and mass of comet ATLAS (C/2019 Y4)

I read some news about this new comet and some unreliable sources said it is twice as big as Jupiter. I tried to find a reliable estimation of its size or mass, but I couldn't find anything. Would you ...
abbassix's user avatar
  • 365
10 votes
2 answers
708 views

Why is the Great Red Spot shrinking?

The Great Red Spot is an anticyclonic storm on Jupiter that is bigger than the Earth. Based on the Wikipedia article, it has been shrinking in size for the last 400 years, going from 41 to 16 thousand ...
usernumber's user avatar
  • 17.6k
15 votes
1 answer
499 views

The compatibility of the Grand Tack hypothesis with the "core-warping impact" theory of Jupiter's diffuse core

In recent years, the Juno mission revealed that Jupiter's core was much more diffuse than astronomers had expected. One theory is that "within a few million years" of its formation, Jupiter ...
Astrid_Redfern's user avatar
7 votes
1 answer
562 views

How much rock has Jupiter "swallowed"?

During its formation approximately 4.5 bya, Jupiter passed through what is now the asteroid belt,gravitationally deflecting some spacewards and some sunwards. Logically, Jupiter, due to its massive ...
user avatar
19 votes
1 answer
9k views

Why isn't the asteroid belt affected by Jupiter's gravitational field?

Jupiter's mass is just about a 1000th of the sun's and the asteroid belt is slightly closer to Jupiter than it is to the sun. If the heavier the object, the more curvy space is around it, why isn't ...
wireman's user avatar
  • 301
3 votes
1 answer
295 views

If Jupiter would stop rotating, would its atmosphere become homogeneous and single coloured?

Looking at pictures of Jupiter, there are many different colours and patterns. I imagine that the rotation has much to do with this, since there are horizontal "bands" across the planet along the ...
user985366's user avatar
6 votes
1 answer
432 views

How much higher is the radiation around Jupiter than at Chernobyl, after the explosion?

I suppose the radiation levels are higher at Jupiter, but how much? Would the Juno probe have been able to "operate" on the Chernobyl roof in $12\,000\, {\rm Roentgen/hr}$? After watching ...
Gambhiro's user avatar
  • 237
3 votes
1 answer
83 views

How long do solar eclipses last on Metis?

How long does Jupiter obscure the sun, from the perspective of Metis, the innermost moon of Jupiter? In other words, how long does Metis remain in the shadow of Jupiter? If it varies by time of year,...
cowlinator's user avatar
17 votes
3 answers
3k views

How often are there lunar eclipses on Jupiter

For the Earth-Moon system, the orbit of the Moon is at a slight incline compared to the plane of the ecliptic. This incline is enough for there to be eclipses roughly twice a year rather than every ...
usernumber's user avatar
  • 17.6k
10 votes
1 answer
169 views

Counter clockwise rotation of storms at Jupiter's north pole. What explanations have been proposed?

On Earth, high pressures and low pressures occur interchangeably. So that where two pressure systems intersect, they move the air in the same direction. But as Juno revealed the first observations of ...
LocalFluff's user avatar
  • 11.4k
2 votes
1 answer
268 views

Storm on Earth vs. storm on Jupiter?

Why is the storm on Jupiter much stronger than storms on Earth and why don't the storms on Earth get as big as Jupiter's great red spot
roblox prisonlife's user avatar
1 vote
0 answers
69 views

Is there any possibility that a gas planet turns into a star [duplicate]

Since the sun is made of one of elements hydrogen Why Saturn and jupiter doesnt turn into a star since they have a elements of hydrogen ?
roblox prisonlife's user avatar
2 votes
2 answers
188 views

If Jupiter were to absorb all other planets in the solar system, would it reach degeneracy pressure?

Jupiter's mass is about the maximum a planet can be before it starts to fuse hydrogen in its core and undergo a massive transformation. Total mass of all solar system objects in question is: here. ...
Magic Octopus Urn's user avatar
6 votes
1 answer
1k views

What weather is present in Jupiter's Great Red Spot?

What weather is present in Jupiter's Great Red Spot? Is it raining? Is it snowing? There is definitely a hurricane a-blowing :-). I know it is very cold, has extremely high winds and clouds of an ...
Jonathan's user avatar
  • 4,381
2 votes
0 answers
61 views

What is the radial dependence of the density of Jupiter or Saturn?

Can anyone point me to the reference where I can find the density of Jupiter or Saturn as a function of the distance from its center?
Youngsub Yoon's user avatar
0 votes
1 answer
408 views

Birth of the Gas Giant Planets?

How does a gas giant planet form like Saturn and Jupiter, and why just gas? Why didn't they form any solid surface?
roblox prisonlife's user avatar
2 votes
1 answer
211 views

How to understand this multi-day exposure photograph of Jupiter and the Moon

This answer includes a stunning photo of the Moon and Jupiter "Trails of the Shifting Moon" by photographer Jin Lu. The caption reads: From the photographer: "I spent 4 days capturing the trail of ...
uhoh's user avatar
  • 30.7k
6 votes
1 answer
860 views

Anti matter in Jupiter magnetic field?

My question is based in this Wikipedia article about the Jupiter magnetic field: https://en.wikipedia.org/wiki/Magnetosphere_of_Jupiter Jupiter magnetic field generates plasma and accelerates ionized ...
Carlos Zamora's user avatar
2 votes
1 answer
768 views

Does Jupiter lose some atmosphere at all?

I've hear of something like this: "All planets lose their atmospheres eventually and they become a barren rock if given enough time." There are three types of atmospheric loss ways: Jeans Escape: ...
Max0815's user avatar
  • 1,872
2 votes
1 answer
935 views

How harmful is Saturn's magnetic field for human life?

AFAIK, Jupiter has the strongest magnetic field in the solar system, and it's so powerful that I've been told humans only could survive the radiation generated by it in its mooon Callisto, with proper ...
Pablo's user avatar
  • 1,113
4 votes
1 answer
338 views

Are there known centaurs which orbit between Jupiter and Saturn without crossing their orbits?

According to Centaur minor planet Centaurs are small Solar System bodies with a semi-major axis between those of the outer planets. They generally have unstable orbits because they cross or have ...
Pablo's user avatar
  • 1,113
10 votes
2 answers
386 views

Can Jupiter's nightside be classified as spectral type Y?

As far as I am aware, the latest spectral types that have been assigned are around Y2, for objects like WISE 0855-0714 that have temperatures around 250 K or so. I've also seen several directly-imaged ...
user avatar
8 votes
2 answers
1k views

How long is a "lunar month" in Jupiter?

For Earth, the lunar month is well known. But Earth has only one moon. But on Jupiter, how long does it takes for the same moon configuration to appear in the "sky" of the planet? For the sake of ...
Mindwin Remember Monica's user avatar
5 votes
1 answer
362 views

Aren't there any rock or similar firm material on/in the gas giant planets?

Aren't there any rock or similar firm material on/in the gas giant planets? What happens if a rock asteroid hits one of these planets? Shouldn't the rock accumulate in the center of the planet due to ...
d-b's user avatar
  • 349
7 votes
3 answers
2k views

Gravitational acceleration inside a planet

The gravitational acceleration, g, inside the Earth generally decreases with decreasing distance to the center: However, apparently for Jupiter, the gravitational acceleration only increases with ...
user4437416's user avatar
1 vote
3 answers
1k views

Adiabatic versus convection

I am reading about the interior temperature structure of Jupiter. It says in various texts that there are regions in Jupiter's atmosphere which are well-approximated by a dry adiabatic lapse rate. ...
user4437416's user avatar
3 votes
1 answer
749 views

Is there enough light to grow plants in the ocean of Europa?

What is the underwater temperature of Europa? I know Jupiter emits infrared light but does it emit any light able to support plant life of any type on near by Moons? Can under water volcanic activity ...
Muze's user avatar
  • 1
8 votes
1 answer
1k views

How does the Sun orbit the Sun-Jupiter Barycenter?

I got the Orbital Elements of Jupiter around the Sun, which describe how it orbits relative to the "fix" Sun. Jupiter Semi Major Axis (AU): 5.20336301 Eccentricity: 0.04839266 Inclination to ...
Andres Huster's user avatar
2 votes
1 answer
164 views

Printed Circuit Board manufacturing file for Radio Jove?

I woild like to build a Radio Jove receiver whose design is available on NASA website. However, I don't want to purchase the receiver, I would like to make it, but but I don't have any knowledge about ...
Nilkantha Gholap's user avatar
2 votes
1 answer
138 views

Finding Jupiter, Saturn

I have a Dobson Omegon with a 640mm focal length and a 102mm aperture. My finderscope is broken but I can do without. I have located the planets with the naked eye but I do I do not see them through ...
Marc's user avatar
  • 41
5 votes
1 answer
922 views

Explanation of resonance stability and instability

I'm having some trouble grasping the idea of planetary resonances due to what seems to me like an ambiguity. It is known that the asteroid main belt is sculpted by the Kirkwood gaps, corresponding to ...
mysterium's user avatar
  • 811
4 votes
2 answers
881 views

What is minimal aperture/magnification to recognize phases of Galilean moons?

Given you take a (non-amateur) refractor telescope, what are aperture and magnification required to recognize phases of the four Galilean moons? What did Galileo see: http://www.astro.umontreal.ca/~...
J. Doe's user avatar
  • 283
7 votes
2 answers
744 views

Computing orbit positions of Jovian Satellites / Moons using JPL data

I've been trying to build a model of the solar system in a game. Thus far I've succeeded in placing each of the planets in position using Keplerian elements and formulae from https://ssd.jpl.nasa.gov/...
PKCLsoft's user avatar
  • 211
2 votes
1 answer
979 views

Total rotational angular momentum estimates for Jupiter?

I wrote a quickie answer where I estimate the total rotational angular momentum of Jupiter as about 7E+38 kg m^2/s. However it bothers me because one of the sources gets this number assuming uniform ...
uhoh's user avatar
  • 30.7k
2 votes
1 answer
459 views

How did "oddball" Valetudo, Jupiter's new prograde moon, end up in a wider orbit?

I just saw this question and that got me to this NASA page which led me to this scientific article. “Our other discovery is a real oddball and has an orbit like no other known Jovian moon,” Sheppard ...
Magic Octopus Urn's user avatar
19 votes
1 answer
3k views

Did we discover 10 or 12 new moons of Jupiter?

I saw multiple news sites reporting that a team discovered 12 new Jupiter's moons: c|net - Twelve new Jupiter moons found, including one reckless one Discover - Jupiter’s Got Twelve New Moons — One ...
Yannick Huber's user avatar
14 votes
3 answers
2k views

Is there any orbit at which the Roche limit can be "felt"?

Do any of the planets have a Roche limit that is strong enough to be felt by an astronaut whilst in orbit?
Muze's user avatar
  • 1
2 votes
1 answer
432 views

What would be the average distance between each 1-degree latitude on Jupiter?

Do planets like Jupiter have a system of latitudes and longitudes (I believe yes)? So if yes, what purpose do they serve? Is there anything different in their purpose from Earth lat-longs? and What ...
Arjun Satheesh's user avatar
13 votes
3 answers
11k views

Fate of Jupiter when our sun dies

Five billion years from now, the sun will have grown into a red giant star, more than a hundred times larger than its current size. While this metamorphosis into the giant star will change the solar ...
Paran's user avatar
  • 904
3 votes
2 answers
667 views

My first pictures of Jupiter

Well, I'll start off by saying I am certain I am doing it wrong! Now that I got that out of the way here is my image: I have a feeling I can't see the planet because I need a filter to block out the ...
E.S.'s user avatar
  • 131
3 votes
1 answer
260 views

Helium rain inside metallic hydrogen within Jupiter, conditions and experiments?

In response to today being pi day (also see http://www.piday.org/), NASA has published it's fifth annual pi in the sky day 5 activity set (see also NASA goes the distance and Celebrate Pi Day with ...
uhoh's user avatar
  • 30.7k
3 votes
1 answer
374 views

What would the pressure and temperature of gas be, right above Jupiter's gas/liquid boundary?

Older pages like this "Exploration of the Solar System" course page describe the transition as being a few hundred kilometers down. More recent findings seem to put the boundary deeper. See The ...
Jacob C.'s user avatar
  • 387
5 votes
2 answers
328 views

What might the surface of Jupiter's rocky core look like? [closed]

Jupiter is posited, in some models, to have a rocky core about the size of a few Earths. If we could see through the thick gaseous atmosphere, what topographical features might we find on the rocky ...
Psychonaut's user avatar

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