Table 3
Magnitude and colours of centaur 523676 (2013 UL10) in selected apertures centred on the centaur optocentre.
| ρa (′′) | R | B–V | V –R | B–R |
|---|---|---|---|---|
| 0.50 | 20.93 ± 0.09 | 1.13 ± 0.10 | 0.75 ± 0.12 | 1.88 ± 0.11 |
| 1.00 | 20.18 ± 0.09 | 1.07 ± 0.10 | 0.71 ± 0.12 | 1.78 ± 0.11 |
| 1.51 | 19.91 ± 0.09 | 1.01 ± 0.10 | 0.71 ± 0.12 | 1.72 ± 0.11 |
| 2.02 | 19.78 ± 0.09 | 1.02 ± 0.10 | 0.68 ± 0.12 | 1.69 ± 0.11 |
| Te+16b | 0.97 ± 0.02 | 0.67 ± 0.02 | 1.64 ± 0.03 | |
| Active centaursc | 0.85 ± 0.16 | 0.51 ± 0.12 | 1.32 ± 0.27 | |
| Sund | 0.64 | 0.35 | 0.99 | |
Notes. (a) Aperture radius; (b) colours of 523676 (2013 UL10) by Tegler et al. (2016); (c)average colours for active centaurs, respectively. Literature data are taken from Jewitt (2009, 2015); Mazzotta Epifani et al. (2014); Peixinho et al. (2015). The value and the associated error have been computed considering the median (over 13 values) and the maximum error; (d) solar colours in the modern Johnson-Cousins system (Holmberg et al. 2006).
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