> On Feb 23, 2017, at 8:57 AM, Bruce Johnson <xxxxxx@Pharmacy.Arizona.EDU> wrote:
>
>>
>> On Feb 23, 2017, at 7:34 AM, C. Berry <xxxxxx@gmail.com> wrote:
>>
>> Ah, yes. The Traveller version of "A wizard did it." :)
>>
>> Has anybody seen the orbital periods for these planets published? It would be easy to look for resonances. I'd be surprised if there's room for everything to have small integer resonances in a 7-planet system that small, but I've been surprised before.
>
> Here’s the article they published in Nature, haven’t read it yet, but that info might be in there: http://dbdev2.pharmacy.arizona.edu/miscjunk/nature21360.pdf
>

And to answer my own post, yes Table 1 lists them, some with astonishing precisison.TRAPPIST-1b has a period of 1.51087081±0.60×10−6 days. That’s 0.05 seconds of variance!

Which if these weren’t actual rocket surgeons I would classify as ‘because my calculator said so’ kind of numbers :-)
--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs