• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
msess1
msess1

... Emphasis is on the analysis of data from Earth-based instruments, space-based telescopes, and spacecraft to determine similarities and differences among solar system objects. Examples of scale properties include the sizes of an object’s layers (such as crust and atmosphere), surface features (such a ...
Chapter 6 Lecture 1
Chapter 6 Lecture 1

... • nearly identical in size to Earth; surface hidden by thick clouds • hellish conditions due to an extreme greenhouse effect: • even hotter than Mercury: 470°C, both day and night • atmospheric pressure equiv. to pressure 1 km deep in oceans ...
Formation of the Solar System Target 1 Notes
Formation of the Solar System Target 1 Notes

... Our solar system formed around __________________ years ago. Scientists believe that a molecular cloud (something called a stellar nursery), consisting of hydrogen collapsed on itself. The collapsing of the cloud resulted in the collision of hydrogen atoms, a process known as __________________. The ...
Members of the Solar System
Members of the Solar System

... Members of the Solar System Solar System-the sun and all of the bodies that orbit it make up the solar system. This includes the planets and their moons, as well as comets, asteroids, meteoroids, and any other bits of rock or dust. The main parts of our solar system are eight planets, an asteroi d b ...
Jovian planets
Jovian planets

... Objects made of rock and metal (terrestrial planets, some moons, asteroids) Very large objects made mostly of gas/fluid (Jovian planets) Objects made of rocky material plus ices (Pluto, KBOs, some moons, comets Among the things we want to explore this term is WHY our solar system looks like this – w ...
Lets Go Into Space!
Lets Go Into Space!

... Venus You guys remember the missions to Venus? Well there are still remaining gaps filled with data! ...
Solar System Live!
Solar System Live!

... magnetosphere that is tilted and off-center. Neptune is the smallest planet with a diameter of only 1500 miles (that's the distance from Denver to New York), and has one known moon nearly half its size. Neptune displays a very thin ring system of varying thicknesses and widths, has visible atmospher ...
Be  Chart  Smart Name:
Be Chart Smart Name:

... (ACROSS, IN RINGS MOONS MILES) ...
Planets - E
Planets - E

... Name: There are a total of 8 major planets in our solar system. There used to be 9 planets, but scientists decided that Pluto was too small to be considered a planet. The 8 planets in the solar system are: 1. Mercury – the closest planet to the sun. 2. Venus ...
Solar system
Solar system

... compared to the 1,000+ planetary systems we know of around other stars (this could be because we can't see well enough from Earth to notice all the planets around a given star). 4. Venus rotates ‘backwards’ on its axis compared to all the other planets in our Solar System. Also, its rotation is supe ...
Chapter 30 Section 3
Chapter 30 Section 3

... and ammonia that travels through space and develops a bright, distinctive tail as it approaches the Sun ...
Print › Chapter 3, Lessons 1 and 2 | Quizlet
Print › Chapter 3, Lessons 1 and 2 | Quizlet

... and Uranus. ...
Our Exciting Solar Neighborhood!
Our Exciting Solar Neighborhood!

... it is so small. In fact, Pluto is smaller than all of the other planets and even smaller than many of the moons in the solar system! Pluto is so far away that no satellites have ever been there, so we don’t know a whole lot about it. We do know that it is very cold and very dark and has one moon nam ...
Astronomy Review Sheet
Astronomy Review Sheet

... 13. How did technology and/or new methods help to change the model of the solar system? Telescopes made the discovery of Jupiter’s moons possible; new methods like using math and the scientific method helped prove the heliocentric model was correct. ...
Sun, Earth and Moon Model
Sun, Earth and Moon Model

... Imagine a world where each season lasts over 100 years and you have three shadows at once. Now meet HD 131399ab, a newly discovered exo-planet with these exact quirks! (An exo-planet is a planet orbiting a distant star.) The strange new world was discovered orbiting a star in a triple star system. T ...
Earth and Its Place in the Solar System
Earth and Its Place in the Solar System

... Earth and Its Place in the Solar System Study Guide Vocabulary (11 questions)  Revolution  Orbit  Asteroid  Lunar eclipse  Phases  Solar system  Axis  Planet  Rotation  Solar eclipse  Comet Planets  Label the planets on a diagram  Tell how the inner planets are alike  Compare two inner ...
Minor Bodies of the Solar System
Minor Bodies of the Solar System

... As a planet moves in its orbit, a line connecting the planet to the sun sweeps out equal areas in equal times ...
Science Homework Week 1 Term 4
Science Homework Week 1 Term 4

... 2. Name the planets known as the gas giants: Jupiter, Saturn, Uranus and Neptune 3. Name 3 spacecraft and at least one planet visited by each: Apollo 11 – The moon Viking 1 – Mars Viking 2 – Mars 4a. Name the body in the solar system that was a planet until 2006: Pluto 4b. Why is it now regarded as ...
Space Note 1-Student
Space Note 1-Student

... The Solar System consists of the Sun and the celestial objects that orbit the Sun due to its gravitational pull. This includes the eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. All of the planets orbit the Sun in the same plane but at different speeds. The Solar S ...
Chapter 29.3
Chapter 29.3

...  Consist of the gas giant planets Jupiter, Saturn, Uranus, and Neptune.  Pluto is recently demoted, and is no longer considered a planet(It’s a dwarf planet).  The gas giants are more massive, but much less dense than the inner planets.  Thick hydrogen / helium atmospheres, with probable dense ...
3OriginofPlanetsandMoons
3OriginofPlanetsandMoons

... •Planets formed when bits of matter first collided and aggregated into small, irregular shapes (planetesimals), and eventually formed into larger planets. •As the planets formed, the more dense ones were pulled closest to the sun. They are called Terrestrial Planets (Mercury, Venus, Earth, and Mars) ...
Inner Planets
Inner Planets

... Outer Planets (Gas Giants) Jupiter largest planet 63 moons “Great Red Spot” – giant storm on surface fastest rotation has rings ...
The Planet with Three Suns
The Planet with Three Suns

... Imagine a world where each season lasts over 100 years and you have three shadows at once. Now meet HD 131399ab, a newly discovered exo-planet with these exact quirks! (An exo-planet is a planet orbiting a distant star.) The strange new world was discovered orbiting a star in a triple star system. T ...
Inner Planets
Inner Planets

...  thick atmosphere traps solar energy = greenhouse effect  hottest planet – about 470 C  Earth’s “sister planet” – similar size  slowest rotation Earth  3rd planet from Sun  protective atmosphere allows life to flourish  water exists as solid, liquid, & gas Mars ...
The Inner Planets Mercury Venus Earth Mars WORD BOX
The Inner Planets Mercury Venus Earth Mars WORD BOX

... nearest to the Sun life liquid water atmosphere terrestrial ice ...
< 1 ... 96 97 98 99 100 101 102 103 104 ... 110 >

Dwarf planet



A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite. That is, it is in direct orbit of the Sun, and is massive enough for its shape to be in hydrostatic equilibrium under its own gravity, but has not cleared the neighborhood around its orbit.The term dwarf planet was adopted in 2006 as part of a three-way categorization of bodies orbiting the Sun, brought about by an increase in discoveries of objects farther away from the Sun than Neptune that rivaled Pluto in size, and finally precipitated by the discovery of an even more massive object, Eris. The exclusion of dwarf planets from the roster of planets by the IAU has been both praised and criticized; it was said to be the ""right decision"" by astronomer Mike Brown, who discovered Eris and other new dwarf planets, but has been rejected by Alan Stern, who had coined the term dwarf planet in 1990.The International Astronomical Union (IAU) currently recognizes five dwarf planets: Ceres, Pluto, Haumea, Makemake, and Eris. Brown criticizes this official recognition: ""A reasonable person might think that this means that there are five known objects in the solar system which fit the IAU definition of dwarf planet, but this reasonable person would be nowhere close to correct.""It is suspected that another hundred or so known objects in the Solar System are dwarf planets. Estimates are that up to 200 dwarf planets may be found when the entire region known as the Kuiper belt is explored, and that the number may exceed 10,000 when objects scattered outside the Kuiper belt are considered. Individual astronomers recognize several of these, and in August 2011 Mike Brown published a list of 390 candidate objects, ranging from ""nearly certain"" to ""possible"" dwarf planets. Brown currently identifies eleven known objects – the five accepted by the IAU plus 2007 OR10, Quaoar, Sedna, Orcus, 2002 MS4 and Salacia – as ""virtually certain"", with another dozen highly likely. Stern states that there are more than a dozen known dwarf planets.However, only two of these bodies, Ceres and Pluto, have been observed in enough detail to demonstrate that they actually fit the IAU's definition. The IAU accepted Eris as a dwarf planet because it is more massive than Pluto. They subsequently decided that unnamed trans-Neptunian objects with an absolute magnitude brighter than +1 (and hence a diameter of ≥838 km assuming a geometric albedo of ≤1) are to be named under the assumption that they are dwarf planets. The only two such objects known at the time, Makemake and Haumea, went through this naming procedure and were declared to be dwarf planets. The question of whether other likely objects are dwarf planets has never been addressed by the IAU. The classification of bodies in other planetary systems with the characteristics of dwarf planets has not been addressed.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report