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astrophysics - dumb questions

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  • #31
    Originally posted by Christianbookworm View Post
    Gas clouds aren't bacon! And now Sparko got squished by Jupiter's gravity when he went after the "bacon".
    But bacon can sure produce gas clouds.

    Comment


    • #32
      back to the topic:


      What is the nearest potentially earthlike planet so far?

      Comment


      • #33
        Originally posted by Sparko View Post
        What is the nearest potentially earthlike planet so far?
        Mars?

        Suggest downloading the data here and filtering to your desired characteristics.
        Jorge: Functional Complex Information is INFORMATION that is complex and functional.

        MM: First of all, the Bible is a fixed document.
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        • #34
          Originally posted by Roy View Post
          Mars?

          Suggest downloading the data here and filtering to your desired characteristics.
          Isn't it too cold? And it doesn't have a think enough atmosphere of the right composition.
          If it weren't for the Resurrection of Jesus, we'd all be in DEEP TROUBLE!

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          • #35
            Originally posted by Christianbookworm View Post
            Isn't it too cold? And it doesn't have a think enough atmosphere of the right composition.
            Given the parameters of "potentially earthlike", Mars fits.
            Enter the Church and wash away your sins. For here there is a hospital and not a court of law. Do not be ashamed to enter the Church; be ashamed when you sin, but not when you repent. – St. John Chrysostom

            Veritas vos Liberabit<>< Learn Greek <>< Look here for an Orthodox Church in America<><Ancient Faith Radio
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            • #36
              Originally posted by Roy View Post
              Mars?

              Suggest downloading the data here and filtering to your desired characteristics.
              I was talking about exoplanets.

              Thanks for the table.

              There is a star called 24 Sex.

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              • #37
                Originally posted by One Bad Pig View Post
                Given the parameters of "potentially earthlike", Mars fits.
                I was wanting to know which would be the nearest exoplanet that could actually support earth type life. I said potential because at this time we have no way of knowing.

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                • #38
                  Originally posted by Sparko View Post
                  I was wanting to know which would be the nearest exoplanet that could actually support earth type life. I said potential because at this time we have no way of knowing.
                  Then you should have asked about that.
                  Enter the Church and wash away your sins. For here there is a hospital and not a court of law. Do not be ashamed to enter the Church; be ashamed when you sin, but not when you repent. – St. John Chrysostom

                  Veritas vos Liberabit<>< Learn Greek <>< Look here for an Orthodox Church in America<><Ancient Faith Radio
                  sigpic
                  I recommend you do not try too hard and ...research as little as possible. Such weighty things give me a headache. - Shunyadragon, Baha'i apologist

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                  • #39
                    Originally posted by One Bad Pig View Post
                    Then you should have asked about that.
                    Thanks Roy.

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                    • #40
                      Originally posted by Sparko View Post
                      I was wanting to know which would be the nearest exoplanet that could actually support earth type life. I said potential because at this time we have no way of knowing.
                      Probably one of the Trappist-1 planets. The star is prone to violent outbursts, but the planets are tidally locked, so there's going to be a lot of habitats that are partially shielded in perpetuity. Plus there's 3 planets roughly the right distance, which ups the odds.
                      "Any sufficiently advanced stupidity is indistinguishable from trolling."

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                      • #41
                        Originally posted by TheLurch View Post
                        Probably one of the Trappist-1 planets. The star is prone to violent outbursts, but the planets are tidally locked, so there's going to be a lot of habitats that are partially shielded in perpetuity. Plus there's 3 planets roughly the right distance, which ups the odds.
                        So nothing promising in the Centauri system or Bernard's star?

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                        • #42
                          Originally posted by Sparko View Post
                          So nothing promising in the Centauri system or Bernard's star?
                          Searches for planets in both are ongoing. One planet slightly bigger than earth has been found in the Alpha Centauri system in the habitable zone. However, it is tidally locked meaning that one side always faces the nearest star (meaning it will get very hot) and one side always faces away from it (meaning it will get very cold), so that would present a challenge for life to survive there. Although that solar system has 3 stars in it orbiting each other, so weirdness.

                          Alpha Centauri is the nearest star system and it would take the fastest rocket we have ever created about 20,000 years to get there.
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                          • #43
                            Yeah, as Starlight says, there is one planet at Alpha Cen B, but i figured having 3 in the habitable zone upped the odds.
                            "Any sufficiently advanced stupidity is indistinguishable from trolling."

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                            • #44
                              Originally posted by Sparko View Post
                              back to the topic:


                              What is the nearest potentially earthlike planet so far?
                              Maybe Titan

                              Source: https://en.wikipedia.org/wiki/Titan_(moon)


                              Titan is the largest moon of Saturn. It is the only moon known to have a dense atmosphere, and the only object in space other than Earth where clear evidence of stable bodies of surface liquid has been found.

                              Titan is the sixth ellipsoidal moon from Saturn. Frequently described as a planet-like moon, Titan is 50% larger than Earth's Moon, and it is 80% more massive. It is the second-largest moon in the Solar System, after Jupiter's moon Ganymede, and is larger than the smallest planet, Mercury, but only 40% as massive. Discovered in 1655 by the Dutch astronomer Christiaan Huygens, Titan was the first known moon of Saturn, and the sixth known planetary satellite (after Earth's Moon and the four Galilean moons of Jupiter). Titan orbits Saturn at 20 Saturn radii. From Titan's surface, Saturn subtends an arc of 5.09 degrees and would appear 11.4 times larger in the sky than the Moon from Earth.

                              Titan is primarily composed of water ice and rocky material. Much as with Venus before the Space Age, the dense opaque atmosphere prevented understanding of Titan's surface until new information from the Cassini–Huygens mission in 2004, including the discovery of liquid hydrocarbon lakes in Titan's polar regions. The geologically young surface is generally smooth, with few impact craters, although mountains and several possible cryovolcanoes have been found.

                              The atmosphere of Titan is largely nitrogen; minor components lead to the formation of methane and ethane clouds and nitrogen-rich organic smog. The climate—including wind and rain—creates surface features similar to those of Earth, such as dunes, rivers, lakes, seas (probably of liquid methane and ethane), and deltas, and is dominated by seasonal weather patterns as on Earth. With its liquids (both surface and subsurface) and robust nitrogen atmosphere, Titan's methane cycle is analogous to Earth's water cycle, at the much lower temperature of about 94 K (−179.2 °C).

                              © Copyright Original Source

                              Glendower: I can call spirits from the vasty deep.
                              Hotspur: Why, so can I, or so can any man;
                              But will they come when you do call for them? Shakespeare’s Henry IV, Part 1, Act III:

                              go with the flow the river knows . . .

                              Frank

                              I do not know, therefore everything is in pencil.

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                              • #45
                                Originally posted by Sparko View Post
                                So nothing promising in the Centauri system or Bernard's star?
                                There was speculation a couple decades ago about habitable planets at Barnard's star, but IIRC that was ruled out by subsequent research.
                                Enter the Church and wash away your sins. For here there is a hospital and not a court of law. Do not be ashamed to enter the Church; be ashamed when you sin, but not when you repent. – St. John Chrysostom

                                Veritas vos Liberabit<>< Learn Greek <>< Look here for an Orthodox Church in America<><Ancient Faith Radio
                                sigpic
                                I recommend you do not try too hard and ...research as little as possible. Such weighty things give me a headache. - Shunyadragon, Baha'i apologist

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