Table 3
Deprojected ellipse parameters.
Parameter | IRDIS | STIS(a) |
---|---|---|
a (au) | 82.4 ± 0.5 | 84.2 ± 1.0(b) |
e | ![]() |
0.02 ± 0.01 |
i (°) | 30.2 ± 1.0 | ![]() |
ω(°) | ![]() |
![]() |
Ω(°) | 99.1 ± 1.6 | 11.2 ± 4.6(c) |
Notes. The uncertainty is given at 1σ and contains only the statistical error from the fit and no systematic error from the true north or star registration. (a)Stark et al. (2014). (b)This value uses the revised Gaia distance to the star of 48.2pc instead of 51.8 pc from Stark et al. (2014). (c)The argument of the ascending node Ω from Stark et al. (2014) is 90° offset from the value derived in this work. This is likely a problem of definition of the origin, taken here as east of north, as the literature mentions various conventions for the deprojection of discs (Chen et al. 2020).
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