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| Determining Planet Properties
1Visits - 0.0 Stars - 1 Vote | Level? | |
| Atmospheres
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Energy Transport
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Appearance and Colors of the Atmospheres
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Magnetic Fields
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Planet Interiors
2Visits - 0.0 Stars - 1 Vote | Level? | ||
| Mars
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Earth
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Moons and Rings
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Jupiter's Large Moons
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Titan
3Visits - 0.0 Stars - 1 Vote | Level? | ||
| Rings
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Celestial Sphere Defined
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Angles
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Reference Markers
2Visits - 0.0 Stars - 1 Vote | Level? | ||
| Motion of Our Star the Sun
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Coordinates
4Visits - 0.0 Stars - 1 Vote | Level? | ||
| Time and Seasons
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Time Zones
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Equation of Time
3Visits - 0.0 Stars - 1 Vote | Level? | ||
| Seasons
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Review Questions
1Visits - 0.0 Stars - 1 Vote | Level? | ||
| Motions of the Moon
4Visits - 0.0 Stars - 1 Vote | Level? | ||
| Phases and Eclipses
2Visits - 0.0 Stars - 1 Vote | Level? | ||
| Eclipse Details: Lunar Eclipse
3Visits - 0.0 Stars - 1 Vote | Level? | ||
Planetary Motions
9Visits - 4.0 Stars - 2 Vote | Level? | ||
Our Sun and Stellar Structure - Introduction
11Visits - 3.0 Stars - 1 Vote | Introduction | ||
The Sun--An Average Star
7Visits - 3.5 Stars - 2 Vote | Introduction | ||
The Sun's Power Source
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Neutrino
4Visits - 3.0 Stars - 1 Vote | Introduction | ||
Helioseismology
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interior Structure of Stars
6Visits - 3.0 Stars - 1 Vote | Introduction | ||
Mass-Luminosity Relation Explained
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interstellar Medium and the Milky Way - Introduction
3Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interstellar Medium (ISM)
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interstellar Medium (ISM) - Dust
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interstellar Medium (ISM) - Extinction
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interstellar Medium (ISM) - Reddening
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Interstellar Medium (ISM) - Gas
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
H II Regions
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
21 cm radiation
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Using 21 cm radiation to Map the Galaxy
2Visits - 3.0 Stars - 1 Vote | Introduction | ||
Molecules
3Visits - 3.0 Stars - 1 Vote | Introduction | ||
Molecular clouds
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Molecular Hydrogen and Carbon Monoxide Connection
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Galactic Structure
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Period-Luminosity Relation for Variable Stars
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Cepheids
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Type I: classical Cepheids
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Type II: W Virginis Cepheids
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
RR Lyrae
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Our Location
5Visits - 3.0 Stars - 1 Vote | Introduction | ||
Our Motion
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Deriving the Galactic Mass from the Rotation Curve
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Spiral Arms
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Density Wave Theory
1Visits - 4.0 Stars - 2 Vote | Introduction | ||
Self-propogating Star Formation
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Transient Spirals
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Populations of Stars
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Galactic Center
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Milky Way Summary
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Lives and Deaths of Stars - Introduction
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stellar Evolution
1Visits - 4.0 Stars - 2 Vote | Introduction | ||
Mass Dependence
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
The Basic Scheme
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 1: Giant Molecular Cloud
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 2: Protostar
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 3: T-Tauri
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 4: Main Sequence
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 5: Subgiant, Red Giant, Supergiant
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 6: Core fusion
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 7: Red Giant or Supergiant
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 8: Planetary Nebula or Supernova
3Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stage 9: Core Remnant
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stellar Nucleosynthesis
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Confirmation of Stellar Evolution Models
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Finding the Ages of Clusters
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stellar Remnants
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Degenerate matter
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Strongly resist compression.
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Pressure only depends on speed of degenerate particles NOT the temperature.
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Larger mass means more compression---smaller object!
2Visits - 3.0 Stars - 1 Vote | Introduction | ||
White Dwarfs
2Visits - 3.0 Stars - 1 Vote | Introduction | ||
Novae and Supernovae Type I
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Neutron Stars
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Pulsars
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Lighthouse Model
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Energy from Spin
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Spin Glitch
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Black Holes
2Visits - 3.0 Stars - 1 Vote | Introduction | ||
Ultra-strong Gravity
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
General Relativity
2Visits - 3.0 Stars - 1 Vote | Introduction | ||
Detecting Black Holes
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Mass of Companion in Binary
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
X-rays from Accretion Disk
2Visits - 3.0 Stars - 1 Vote | Introduction | ||
| Newton's Law of Gravity - Introduction
2Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Newton's Laws of Motion
2Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Universal Law of Gravity
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Mass vs. Weight
2Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Inverse Square Law
2Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Gravitational Acceleration
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| A Closer Look at Newton's Gravity
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Orbits
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Kepler's Third Law
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Tides
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Introduction
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Other Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Types of Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Spirals
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Irregulars
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Review Questions
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Distances to Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Masses of Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Clusters of Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Galaxy Origins
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Review Questions
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Active Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Active Galaxies
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Power Source for Active Galaxies and Quasars
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Review Questions
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
Steps to the Hubble Constant
1Visits - 4.0 Stars - 1 Vote | Introduction | ||
| Introduction
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Observations and Some Implications
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Universe is Uniform on Large Scales
1Visits - 2.5 Stars - 2 Vote | Introduction | ||
| Review Questions
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Cosmic Microwave Background Radiation
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Matter to Energy to Matter Conversion
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Evidence Supporting the General Big Bang Scheme
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Review Questions
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Fate of the Universe
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Is The Universe Open or Closed?
1Visits - 2.5 Stars - 2 Vote | Introduction | ||
| Fate of the Universe
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Embellishments on the Big Bang
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Planetary Science - Introduction
0Visits - 0.0 Stars - 1 Vote | Introduction | ||
| Solar System Fluff - Introduction
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Asteroids
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Meteorites
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Radioactive Dating
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Effects of Asteroid Impact on Earth
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Comets
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Comet Orbits---Oort Cloud and Kuiper Belt
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Comet Beginnings and Ends
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Solar System Formation
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
Testing the Theory: Other Planetary Systems
3Visits - 3.5 Stars - 2 Vote | Introduction | ||
Introduction - Stellar Properties
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Stars--What Are They Like?
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Distances---Trigonometric Parallax
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Distances---Inverse Square Law
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Magnitude System
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Apparent Magnitude
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Absolute Magnitude and Luminosity
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Distance Modulus
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Color and Temperature
3Visits - 3.0 Stars - 1 Vote | Introduction | ||
Color Index and Temperature
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Wien's Law and Temperature
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
The Composition of Stars
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
The Velocities of Stars
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
The Masses of Stars
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
The Sizes of Stars
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Types of Stars and HR diagram
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Temperature dependence
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Spectral Types
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Hertzsprung-Russell diagram
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Spectroscopic Parallax
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
What is a ``Typical'' Star?
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
| Einstein's Relativity - Introduction
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
Spacetime
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Curved Spacetime
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Evidence of Warped Spacetime
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Bending of Light
1Visits - 3.0 Stars - 1 Vote | Introduction | ||
Slowing Down of Time (Time Dilation)
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Gravitational Redshift
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
Gravitational Waves
0Visits - 3.0 Stars - 1 Vote | Introduction | ||
| Astronomy Without a Telescope - Introduction
106Visits - 0.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Introductory Comments
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - A Sense of Scale
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Time.
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Review Questions
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Science in General
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - A Definition of Scientific Truth
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Value of Astronomy in the Scientific Endeavor
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Astrology
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - The Horoscope
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Testing Astrology
1Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Further Testing of Astrology
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
| Astronomy - Review Questions
0Visits - 2.0 Stars - 1 Vote | Introduction | ||
LIA: Use of Laser to Identify Stars in the Sky to a Group
0Visits - 3.0 Stars - 1 Vote | Intermediate | ||
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