Astronomy Magazine

Planets With Rings

Posted on the 01 April 2011 by Gabe12logan
Planets with rings are the outer planets or gas giants, they are Saturn, Jupiter, Neptune and Uranus.
Saturn is characterized by its rings, which are easily visible through a small telescope. They have been known since the time when Galileo Galilei first used a telescope to astronomical purposes. Rings are annotated letters of the alphabet, in order of discovery. Consist of silicate rocks, iron oxides and ice. It stretches from the 6 630 km to 120 700 km above Saturn's equator. Through a telescope are best seen rings A, B and C. The fissure between the two most prominent rings (A and B) is called Cassini division, a much less pronounced cracks at the outer edge of the A-ring is named Encke gap. The cracks are actually orbits with unfavorable resonance in relation to Saturn's satellites, so they have the same origin as the Kirkwood area in the asteroid belt.
Planets With Rings
Jupiter's rings are mainly composed of micro-meter dust particles and extends all the way to the planet's surface. Closest to Jupiter is the Halo ring, a wide, about 20 000 km, which is shaped like a torus. On Halo continues 7 000 km wide main ring. Inside the ring are also Galilean moons Metis and Adrastea. Amalthea and Thebe are the sources of material for a very rare Amalthea Gossamer and Thebe Gossamer  ring that continues to the main ring.
Neptune's rings are Galle, LaVerrier, Lassell, Arago, one unnamed, and Adams, which contains 5 arcs: Courage, Liberté, Egalité 1 and 2 and Fraternité. Albedo of the rings is very small: between 0.015 and 0.04 and are less pronounced than Saturn's and Uranus rings.
Uranus' rings are 1986U2R, 6, 5, 4, Alpha, Beta, Eta, Gamma, Delta, Lambda (formerly 1986U1R) and Epsilon. Most of the Rings is just a few kilometers wide, except the ring 1986U2R which is 2500 km wide. Albedo of the rings is only 0.03. The rings are elliptical, especially outside, and do not look like complete as Saturn's rings. Particle size ranged from dust to the 10-meter boulders.

You Might Also Like :

Back to Featured Articles on Logo Paperblog

These articles might interest you :

  • Traveling with Tots

    Traveling with Tots

    Whether taking a young child to a restaurant or on a plane trip, you have your hands full keeping your child entertained and behaving appropriately. One mom... Read more

    By  Slattenk
    FAMILY, PARENTING
  • Skiing with Children

    Heather Morison of Ice and Fire Holidays in Les Coches, La Plagne gives us her top tips for taking younger children away for a ski holiday. Read more

    By  Surfcat
    OTHER SPORTS, OUTDOORS, SNOW, SPORTS
  • Dinner with Food Only

    Dinner with Food Only

    Hello Friends,Here's another great activity that my family still begs to do again. I'll tell you how we did it, but obviously, the sky is the limit with what... Read more

    By  Monicairvine
    COMMUNITY, DEBATE, FAMILY, PARENTING, SCHOOLING, SOCIETY
  • Everything Changes with Age

    To admit that initially I thought I was disappointed with Milan Kundera's most recent book of essays, Encounter, is also to admit that I missed something that... Read more

    By  Jaac
    BOOKS, CULTURE
  • Cats With Thumbs

    Ever wondered why cats stare while you're pouring milk? It's because they know that it is only a matter of time. That time is the only thing between them and... Read more

    By  Gerard
    HUMOR, RANDOM
  • Correcting with Respect

    Correcting with Respect

    This month, I would like to discuss the etiquette skill of correcting our children. What? You didn’t know there was an etiquette skill involved in this? Well... Read more

    By  Monicairvine
    FAMILY, LIFESTYLE, SOCIETY
  • Food with Cartoon Characters

    Food with Cartoon Characters

    What happens when healthy food is labeled with a cartoon character? Kids seem to like it more! I have seen this to be true with my kids, except when it comes... Read more

    By  Newsanchormom
    FOOD & DRINK

Magazines