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7 votes
Accepted

Is this the first photo of Jupiter's ring(s) from deep space?

It has been photographed before. See this image, from NASA/ Galileo. The difference with the Juno image is it was taken from inside of the orbit of the ring, while the Galileo was taken from further ...
PearsonArtPhoto's user avatar
  • 121k
6 votes

How do Saturn's rings affect the surface of the planet?

I'm going to interpret "surface" to mean Saturn's upper atmosphere. It was recently discovered that ring particles are raining down on Saturn. It’s raining on Saturn. Each second, the planet’s ...
Hobbes's user avatar
  • 128k
5 votes
Accepted

Artificial ring around the Earth?

In terms of what is up there number looks like a couple of thousand tonnes. Taking the figure of 7500tonnes, working from radius of LEO at 6770 km gives a ring length of 42537 km. That would give ...
GremlinWranger's user avatar
5 votes
Accepted

Could any of the JWST instruments image the rings around 10199 Chariklo?

I don't have an "Astronomer's license" but I'll throw an envelope-back at it and see what sticks. Wikipedia's 10199 Chariklo; Rings links to F. Braga-Ribas et al. 2014 A ring system detected ...
uhoh's user avatar
  • 149k
4 votes
Accepted

What happens if you put rings with the mass of several suns around a black hole?

This is a simulation program set up to run outside all sensible and appropriate bounds - to go at that speed the iterations just don't work. The mathematics is not realistic here. So what you are ...
Rory Alsop's user avatar
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4 votes
Accepted

Why are the Rings of Saturn so much brighter than the other planets?

There are two factors at work here: The rings of Saturn are made of much more reflective material (water ice) than those of Jupiter, Uranus or Neptune. They simply have much more matter in them. This ...
Steve Linton's user avatar
  • 19.6k
3 votes

Would orbital ring platforms affect the orbit of a planet?

Backup, frameshift time: You can't anchor your ring to the poles without making it out of handwavium. Your ring must be at the equator. Anything else will cause torque on it that it can't hope to ...
Loren Pechtel's user avatar
3 votes

Could the ISS put a ring around the Earth?

Would the orbital motion of the ISS allow the line to trail behind it? Ignoring the "line" part and just thinking about the end of it, you have an object that is drifting backward with respect to the ...
BowlOfRed's user avatar
  • 6,882
3 votes

Would orbital ring platforms affect the orbit of a planet?

First of all, the ring you are suggesting would have to be equatorial not polar. Secondly the sun will expand in the next million years, so prospectively it will get hotter here (and NO: that is not ...
CallMeTom's user avatar
  • 3,298
2 votes

Would orbital ring platforms affect the orbit of a planet?

To expand Loran Pechtel's answer in terms of moving the Earth - having a spinning ring does not change earth's orbit. In overall terms, if no mass leaves the the earth/ring/moon system the center of ...
GremlinWranger's user avatar
2 votes

What delta-v per orbit would a spacecraft need to hover next to Saturn's rings?

Here are some effective ring parameters. To simplify I'm just using the monopole term GM and not including the "extra gravity" near the planet from the oblateness which is okay since I'm rounding. (...
uhoh's user avatar
  • 149k
2 votes

What about gathering water ice from Saturn's rings?

I can't see how Saturn would ever beat Ceres as a source of water for inner solar system applications. You need a railgun or something to get things off Ceres and some way of cutting chunks of ice out ...
Steve Linton's user avatar
  • 19.6k

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