2006-11-09 12:05:24 · 3 answers · asked by Lesartistes 3 in Science & Mathematics ➔ Astronomy & Space
Each chemical absorbs a different portion of the light band. The portions that are not absorbed are what give things color. If you're looking at the spectral analysis of a star, you can tell what chemicals are present by the black bands on the light spectrum, which represent absorbed light. If that color is absorbed, then the corresponding chemical must be present.
2006-11-09 12:12:15 · answer #1 · answered by abulafia24 3 · 3⤊ 0⤋
Heh, I just finished writing a report on a lab we did on atomic spectrum.
Every gas when heated emits light of different wavelengths. This basically acts as a "fingerprint" for that specific gas. For example hydrogen emits four clear colors. From the experiment we did I saw red, blue-green, purple, and dark violet, although the last color was very hard to see.
So from this scientists can figure out what gases make up a star's or planet's atmosphere.
2006-11-10 00:57:06 · answer #2 · answered by Anonymous · 1⤊ 0⤋
duhhh! look it up!!!
2006-11-09 20:07:42 · answer #3 · answered by abbi 2 · 0⤊ 1⤋