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2006 QH181: Revision history


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  • curprev 22:5722:57, 13 August 2019146.199.60.87 talk 7,582 bytes 0 This was inaccurate as well - possibly the Johnston's record has been updated in between? Still not clear where THEY'RE pulling the info from of course. FWIW, neither 607 or 612km are entirely in agreement with "366 to 819km", if we assume it's they're supposed to be the mean of that range, but they're closer to that than 420 to 940km. (mean of the former = 592.5km, mean of the latter = 680km, so 14.5 or 19.5km difference, vs 73 or 68km) undo
  • curprev 22:5222:52, 13 August 2019146.199.60.87 talk 7,582 bytes −1 The (archived version of the) absolute magnitude page says H=4.0 equates to an assumed size range of 420 to 940km. Higher magnitude means *smaller* diameter, not larger; the body's magnitude is listed as 4.3; an 0.3 mag increase equates to that being 75.9% the brightness of 4.0, and so the visible area is that much less; we then take the square root to get the relative diameter, ie 87.1%. The new figures are 420~940km multiplied by that. undo

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