Across
- 2. apparent change of object as it appears from different locations
- 4. element with only two atomic spectra lines
- 6. range of light with different wavelengths
- 8. China called the three stars in Orion’s belt this
- 10. type of telescope that uses mirrors
- 11. distance between crest of a wave
- 12. name of telescope in orbit created in 1990
- 13. instrument scientists use to determine chemical composition of stars
- 16. lowest frequency of light used in certain kinds of telescopes
Down
- 1. type of lenses used in refracting telescopes
- 3. what part of the Earth distorts light coming in from space
- 5. element that consists of four individual atomic spectra lines
- 7. brightness of stars depend on this along with size of star
- 9. patterns of stars as seen from Earth
- 14. cooler stars appear this color
- 15. name of NASA’s telescope in orbit that was launched in 2003