---
# System prepended metadata

title: Introduction to Astronomy HW02
tags: [Science and Life, 通識, Introduction to Astronomy, NTNU]

---

# Introduction to Astronomy HW02
###### tags: `NTNU` `通識` `Science and Life` `Introduction to Astronomy`
1. Solar System
    - a. objects closer to the Sun than Jupiter
        -  Jupiter , Io , Europa , Ganymede , Callisto , Ceres , Mars , Earth , Venus , Mercury , Halley's-Comet .
    - b. atmosphere more than 1 mbar
        - Venus, Titan, Saturn, Earth, Mars, Jupiter, Uranus, Neptune
    - c. moons
        - Io, Europa, Ganymede, Callisto, Titan, Enceladus, Triton, Charon
2. Extanded Solar System
    - a. Why Pluto not a planet anymore？ 
        - it is too small
        - its moon too big
        - its orbit is moderately and eccentric
    - b. What is KBO ？
        - 
3. Tool
    - a.
    - b.
4. Stars
    - What is H-R diagram ? what is x axis ? What is y axis ?
        - To see the state of the star.
        - X-axis means surface temperature.
        - Y-axis means luminosity.
5. Strange stars
    - a.
    - b.
6. Exoplanet

[Solar System Note](https://hackmd.io/@NTNUCSIE112/solarsystemnote)
{%hackmd @NTNUCSIE112/solarsystemnote %}
[Telescopes Note](https://hackmd.io/@NTNUCSIE112/Telescopes)
{%hackmd @NTNUCSIE112/Telescopes %}