[Acknowledgement]
In these figures, parameter "r" express the distance from the Sun to the celestial object. x, y and z show the position in x-, y- and z-axis. unit "AU" means astronomical unit, defined as the distance from the Earth to the Sun that has the value 1.496*10^9 m. [3/3]

Here's the black track for 132 Aethra's Orbit in 3 decades. You can see that some of data points are crossing the Mars' Orbit (red track). Due to the pre- collision and the solar mechanical force, the elliptic orbit's eccentricity and inclination will be changed during traveling. [2/3]

[Mars-Crossing Asteroid]
A Mars-Crossing Asteroid (MCA) is named as an asteroid's orbit cross Mars' with an inclination. The procession occurs Near-Earth Asteroid (NEA) since the collision at the main belt between Mars and Jupiter. The figures show MCA 132 Aethra's Orbit in 2-d and 3-d. [1/3]

[Introduction]
Name: Robert Cha
Birth: 2001.Aug.8th
Subject: physics, astronomy, python
Interest: board game, photography
game: Minecraft, Tetris, Mole Manor

[Appreciation]
Thanks for everyone supporting me to make my streamlab, I'll do my best for this in the future.

Usage: for my scholar work.

莫伊值得我敬佩XD

自從看過莫伊想不到的十件事之後，我認為莫伊是一位懂得分享生活週邊的主播XD

感謝有這個機會認識莫伊撒托西，2025年大家一起加油努力，撰寫2025年的篇章！