Selective Comparison
Visible light is about 0.4 μm to 0.7 μm, and 0.75 μm to 1000 μm (1 mm) is a typical range for infrared astronomy, far-infrared astronomy, to submillimetre astronomy.
| Selected infrared space telescopes | |||||||
| Name | Year | Wavelength | |||||
|---|---|---|---|---|---|---|---|
| IRAS | 1983 | 5–100 μm | |||||
| ISO | 1996 | 2.5–240 μm | |||||
| Spitzer | 2003 | 3–180 μm | |||||
| Akari | 2006 | 2–200 μm | |||||
| Herschel | 2009 | 55–672 μm | |||||
| WISE | 2010 | 3–25 μm | |||||
| JWST | Planned | 0.6–28.5 μm | |||||
Read more about this topic: Infrared Telescopes
Famous quotes containing the words selective and/or comparison:
“The selective memory isn’t selective enough.”
—Blake Morrison (b. 1950)
“Most parents aren’t even aware of how often they compare their children. . . . Comparisons carry the suggestion that specific conditions exist for parental love and acceptance. Thus, even when one child comes out on top in a comparison she is left feeling uneasy about the tenuousness of her position and the possibility of faring less well in the next comparison.”
—Marianne E. Neifert (20th century)
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