Questions tagged [jupiter]
Questions regarding Jupiter, the 5th and largest planet in the Solar System.
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Is Jupiter warming the Earth? (Earth, Sun Jupiter system)
If Sun-Jupiter baricentre is outside the Sun, does that mean the Sun is orbiting around that point too right?
Then the Sun shouldn't be nearer to the Earth at some point during the Sun-Jupiter orbit (...
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If Jupiter's day length increased from the current 9 hours to 100 hours, would the weather become more or less violent?
Would average windspeeds increase or decrease if day length increased substantially on Jupiter?
Is windspeed in Jupiter's atmosphere primarily driven by solar energy differentials between night and ...
2
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1answer
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Jupiter's asteroid-like moons and planetary-systems around sub-brown dwarfs
Is it likely that any of Jupiter's small moons were formed in orbit around Jupiter or are they all captured asteroids? I thought of this question because I wondered whether the planetary-system of a ...
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2answers
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Is Jupiter's Red Spot "locked in place" or does it move around?
A person could be forgiven when looking at Jupiter's Red Spot storm for concluding that it doesn't move. That it's geologically locked in place. But is it?
I know it's a stretch to use the phrase &...
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3answers
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How big can a planet get, with respect to its star for it to sustain life? [closed]
Earth is 108 times smaller than the sun in terms of its diameter while Jupiter is 10 times.
Assuming Jupiter was located such that it could sustain life, theoretically how big a planet can get with ...
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1answer
48 views
How much real time was compressed into this 10 second long timelapse Hubble video of Jupiter's aurora?
The HubbleESA video Timelapse of Jupiter’s auroras is discussed in the ESAHubble page Timelapse of Jupiter’s auroras and includes the identifier heic1613a. However ...
3
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1answer
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Are these Jupiter's moons?
Sorry for the huge picture), anyway, as you can see, there are 2 specks of light on either side of the upper planet which is likely Jupiter as the lower one is clearly Saturn-shaped.
I was going ...
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4answers
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Why doesn't the Sun wobble towards Jupiter instead of away from Jupiter?
This is the page I am referring to. It seems counterintuitive to me that the Sun should be on the opposite side of the barycenter's wobble. I realize I am wrong, but I cannot see why I am wrong. Can ...
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1answer
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Why does the solar analemma have a strange shape on Jupiter?
I'm trying to look at what the solar analemma looks like from different planets, using Stellarium. To plot the analemma, I go into the ephemeris tab of the astronomical calculations window. From there,...
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1answer
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Maximum and minimum masses and sizes of giant planets?
What are the minimum & maximum masses and diameters of giant planets?
Minimum end of the scale
Earth has mass of 1 Earth mass and a mean radius of 6,371.0 kilometers, and thus a mean diameter of ...
6
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1answer
473 views
Requirements to resolve position of Jovian Whistlers up to magnitude of Red Spot with amateur radio equipment?
Can I sense a bright star pointing an eight foot antenna towards it? is a while ago, but the discussion about this question I found very interesting. Please forgive me that I am not an expert in ...
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What are the typical emissions of Jupiter's Aurorae?
I'm looking for some solid measurements of the full range of emissions from the Aurorae on Jupiter. I've found partial sets of data in the past which are most easily summarized here. As you can see, ...
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1answer
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Is GAIA the only game in town for looking at quadrupole gravitational deflection of light?
From Gerry Gilmore (2018) Gaia: 3-dimensional census of the Milky Way Galaxy
4.4 Fundamental physics
Relativistic effects are highly significant for Gaia measurement accuracy, with
tests of General ...
2
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0answers
91 views
I have a scientific paper on gravity, how do I publish it, and will my research benefit me? [closed]
I read a lot about gravity and discovered a hole in it, and I want to publish that hole, but I am not good at mathematics. To show that gap, what should I do? Should I use Newton's equations which are ...
3
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1answer
58 views
How big and how far away would the moon be if earth was the size of Jupiter?
If the earth were the size of Jupiter, what would its 'moon' be in both relative size and distance? I did some quick figuring and think I roughly figured out that if placed at the position of the sun, ...
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2answers
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If jupiter was the densest planet on the solar system with low volume, could it be a star without multiplying its mass 80 times?
Astronomers or Scientists say that Jupiter's Mass would have to be multiplied 80 times to become a star (M Mass). What if Jupiter was denser, would there be thermonuclear energy because of the density?...
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How big can an object get before its core becomes degenerate?
I am wondering, what is the most massive object we know of that does not have a degenerate core, and what is the least massive object that does have a degenerate code? We know that Jupiter has a core ...
2
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1answer
78 views
What will a future cold and "dead" Jupiter look like? [duplicate]
I heard Jupiter is dying like getting smaller. For example, from Guillot et al. 2004 3: The Interior of Jupiter (also here):
(Jupiter)... is still contracting at the rate of ~3 cm per year while its ...
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2answers
158 views
Solar wind, Earth wind and planetary winds?
In February 2021, a new form of "electrified gas breeze" was announced, see blog by Tony Phillips entitled A New Form of Space Weather: Earth Wind which might a possible explanation for ...
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1answer
45 views
How fast do the poles of Jupiter and Saturn precess?
As Jupiter and Saturn have very fast rotation periods, about 10 and 11 hours, respectively, I am assuming that their poles will precess much faster then Earth. Since Earth's poles precess every 26000 ...
3
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0answers
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Measured values of the solar irradiance at other values than 1 AU?
It is straight forward to estimate the total solar irradiance of a planet using the Earth's solar constant, and scaling it according to the (mean) distance of the planets. But for which planets have ...
3
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1answer
151 views
How much solar energy concentrates at Jupiter's focal point via gravitational lensing?
How much solar energy concentrates at Jupiter's focal point via gravitational lensing?
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1answer
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What calculations show that Comet Shoemaker-Levy 9 orbited Jupiter for several decades before its spectacular impact? (Chodas, Sekanina & Yeomans)
This answer to A moon in eccentric orbit dipping below Roche limit includes the following about Comet Shoemaker–Levy 9
Here is a nice figure of its last passes:
I looked up "fragment A" in ...
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0answers
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Time evolution data of the Great Red Spot on Jupiter?
Jupiter's Great Red Spot fascinates scientists for ages, so it does me. Where can I find a table (e.g. as CSV-file) with the time evolution of longitude, latitude, horizontal and vertical extension of ...
6
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1answer
163 views
When will Callisto be in orbital resonance with the rest of Jupiter's big moons?
The four Gallilean moons of Jupiter (from innermost) are Io, Europa, Ganymede, and Callisto. Io, Europa, and Ganymede are in a 1:2:4 orbital resonance. Callisto's orbital period is 16.689 days, which ...
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1answer
302 views
If Jupiter and Saturn were considered stars, which of their moons would qualify as planets by 'clearing the neighbourhood'?
Jupiter has four and Saturn seven spherical satellites. Jupiter's moon Ganymede and Saturn's Titan are larger than Mercury and they're the most massive moons at 0.0248 M♁ (Ganymede) and 0.0225 M♁ (...
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2answers
206 views
If we stood on the surface of a Jovian moon, Saturn would appear as a dot. Why doesn't Saturn appear like this in a telescope?
Images from the conjunction like these show Saturn just a bit smaller than Jupiter. However, if you were in the vicinity of Jupiter, Saturn would still appear as a dot to the naked eye, wouldn't it? ...
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0answers
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Meteor size and frequency distribution for Earth vs. moon or other planets?
I struggle to find an answer to the at-first-sight simple question if or how the size distribution and frequency distribution of incoming rocks hitting the ground or the atmosphere vary from Earth, to ...
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1answer
163 views
How is it that Jupiter and Saturn appear the same size in the sky?
Saturn is twice as far as Jupiter is from Earth according to a quick Google search. But I needed to understand why do they appear as if they are the same size. I mean as if they are not far apart. For ...
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0answers
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Question about telescope eyepieces
I have a Celestron 60LCM refractor telescope. It has a 60mm aperture and a 700mm focal length. It came with two eyepieces. One is 25mm and the other is 9mm. They are marked only with their focal ...
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0answers
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The electron–cyclotron maser emissions from Earth
The first-ever detection of radio signals caused by the electron–cyclotron maser mechanism outside of the Solar System, on Tau Bootis b was recently published (here). This phenomenon causes huge radio ...
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2answers
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Will I be able to see both Jupiter and Saturn at the same time in my Astromaster 114?
I have a Celestron Astromaster 114 Newtonian reflector telescope. The specs:
aperture: 114mm
focal length: 1000mm
focal ratio: f/8.77
I also have a t-ring so I can connect a Nikon camera to it.
Will ...
5
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1answer
1k views
Are the Jupiter-Saturn conjunctions and winter solstice related?
There is conjunction of Jupiter and Saturn on Dec 21. And there is another celestial event on that day the winter solstice.
So I'm just wondering that are these two events are related or not?
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votes
1answer
139 views
Lightning in Jupiter's "string of pearls?"
Is there any reason there couldn't be lightning in the storms that make up Jupiter's "string of pearls?"
Addendum:I'm writing a science fiction novel, with a ship passing by Jupiter and ...
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2answers
98 views
Why do Jupiter impact events look dark brown?
When a large asteroid impacts a rocky planet, the impact area becomes molten, looking red. However, when an asteroid or other large object impacts a gas giant, like Jupiter, the impact area turns dark ...
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1answer
137 views
Does Jupiter rotate at the same speed at every depth?
Jupiter rotates in less than 10 hours. Its rotation is differential, with the upper layers of the atmosphere spinning a bit faster at the equator than at higher latitudes. Do the inner layers of ...
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2answers
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Why does the Simbad page "A.A. Michelson's Jovian Galilean-satellite interferometer" show data for Betelgeuse?
When searching for things related to How did Michelson measure the diameters of jupiter's moons using optical interferometry? I came across the ui.adsabs.harvard.edu entry A. A. Michelson's Jovian ...
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1answer
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Why Trojans haven't merged into moons
Jupiter's trojans are located in the L4 and L5 Lagrange points.
These two points are stable, so why don't all the trojans have already merged into small moons?
And since it's not the case, what ...
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0answers
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Celestron 130 EQ astromaster [duplicate]
I brought this 130 EQ telescope and set it up following the manual. I checked collimations and seemed alright, the usual 3 clips with the black solid circle in the middle crisscrossed by the spider ...
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1answer
2k views
What is behind the Great Red Spot's longevity?
On Earth, storms can last a few days. The Great Red Spot on Jupiter is a storm that has been going on for more than 400 years now. What is different on Jupiter that makes it possible for storms to ...
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3answers
279 views
Good eyepieces for Saturn and Jupiter
I have a celestron powerseeker 114eq telescope. Aperture : 114mm Focal Length: 900mm
I have 20mm and 4mm eyepieces and a 3x Barlow. I have seen Saturn's rings using 4mm eyepiece but it's blurry and ...
3
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0answers
44 views
What can Jupiter's spectrograph tell us other than its rotational velocity?
I have data of a Jupiter's image and the spectra of each pixel in the image, and I am playing around to see what I can do with it.
I have managed to find Jupiter's rotational velocity by finding the ...
4
votes
1answer
151 views
Can you see both Jupiter and Saturn (and their moons) in detail during their upcoming conjunction?
In December of this year, Jupiter and Saturn are going to be in a conjunction. Are they going to be close enough that you could resolve both as more than just dots and see their respective satellites ...
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votes
2answers
874 views
What is the period of Jupiter being visible in the sky?
For more than 3 months now, we can enjoy seeing Jupiter in the sky, and this will be the case until end of December.
This means that Jupiter move slowly in the sky every day, but it makes me wonder ...
3
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1answer
94 views
Surface of the Sun, or Jupiter, etc [duplicate]
I keep hearing and reading statements that refer to the "surface of the Sun" (how hot the surface of the sun is) or the "surface of Jupiter" (when the Shoemaker comets hit Jupiter)....
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2answers
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Jupiter with a mobile phone and Celestron Astro FI 102mm Maksutov
My name is John, I am new here and now that I am retired I decided to get myself my first ever telescope, why I never got one before I have no idea...probably too busy.
So I thought I would try and ...
3
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1answer
81 views
How far can we detect lightning in radioastronomy?
The wikipedia article on whistlers has this information:
Voyager 1 and 2 spacecraft detected whistler-like activity in the
vicinity of Jupiter known as "Jovian Whistlers", implying the ...
9
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1answer
192 views
Will Jupiter eventually stop shrinking?
Jupiter is currently shrinking due to the Kelvin-Helmholtz mechanism. Will this mechanism eventually hold or getting slower? If so, at what size of Jupiter will it stop and why? If not, what will ...
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3answers
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Why don't the inner moons of Jupiter have tidally-induced volcanism?
Volcanism on Io is caused by the fact that it is tidally heated. There are four moons that are closer to Jupiter than Io with higher eccentricities, yet they don't seem to have any volcanism at their ...
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1answer
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Lucky imaging with Celestron 14 - is this result reasonable?
I attempted to do some lucky imaging of Jupiter using a permanent installation (Celestron $14$" SCT + Paramount ME II) and Nikon D5600 attached directly to a Baader Hyperion 8-24mm eyepiece (...
