Trans-Neptunian spectral types

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/trans-neptunian-spectral-types

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the location?Outer Solar System, primarily within and beyond the Kuiper Belt
2. What is the methodology?Spectroscopic analysis of reflected sunlight to determine surface composition and physical state
3. What are Trans-Neptunian Objects (TNOs)?TNOs are icy bodies that live far beyond Neptune, in the cold Kuiper Belt and scattered disk. They keep the original material from when the solar system formed.
4. How do scientists find out what colors TNOs are made of?Astronomers shine sunlight on a TNO and split the reflected light into colors. By looking for special fingerprints in the light, they can see which ices and chemicals are on the surface.

Trans-Neptunian Objects (TNOs): Celestial bodies orbiting the Sun at distances greater than Neptune's orbit, including Kuiper Belt Objects and scattered disk objects.
Spectroscopy: The study of the interaction between matter and electromagnetic radiation, used here to analyze reflected sunlight.
Tholins: Complex organic macromolecules formed by UV irradiation of simple ices, contributing to the reddish color of many TNOs.
Absorption Bands: Specific wavelengths of light that are absorbed by a material, indicating the presence of particular chemical compounds.