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Table 3
Computed spectral slope between 0.57 and 0.70 μm and between 0.40 and 0.70 μm, with the spectra normalized at 0.60 μm, for the spectra of Pluto+Charon (this work; Buie & Fink 1987; Grundy & Fink 1996), for the spectrum of Makemake (Licandro et al. 2006b) and for the spectrum of Eris (Alvarez-Candal et al. 2011).
| Longitude (degrees) | Slope (% / 1000 Å) 0.57–0.70 μm | Slope (% / 1000 Å) 0.40–0.70 μm | Reference |
|
|
|||
| 49.7° | 14.2 | 19.9 | This work |
| 103.7° | 12.6 | 20.6 | ′′ |
| 141.3° | 12.5 | 19.3 | ′′ |
| 197.9° | 12.7 | 19.4 | ′′ |
| 245.2° | 10.7 | 17.3 | ′′ |
| 358.9° | 10.8 | 17.2 | ′′ |
| Average spectrum | 12.3 | 19.0 | ′′ |
|
|
|||
| 25° (1983) | 5.7 | – | Buie & Fink (1987) |
| 329° (1983) | 5.1 | – | ′′ |
| 144° (1990) | 7.7 | – | Grundy & Fink (1996) |
| 56° (1993) | 10.8 | – | ′′ |
| 150° (1994) | 10.4 | – | ′′ |
|
|
|||
| Makemake | 12.9 | 17.3 | Licandro et al. (2006b) |
| Eris | 4.4 | 6.5 | Alvarez-Candal et al. (2011) |
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