Quasi Resonance in HD 45354

Having gone into resonant-orbits, and orbits (like Uranus') as just look resonant: here's HD 45354. This is an orange K0V in the Monoceros constellation 34.3-.4 parsecs away. Its two habitable-zone but 0.19-and-0.55/sini sub?Jupiters were, at first, deemed 3:2 and eccentric - like Jupiter and its Hildas. Like HD 204313 b:d before d got shot away. Hinting at speculations upon HD 45354...

Now Zhexing Li et al. have ruled their orbits circular; with a nonKeplerian dynamical model improving on the mass-estimate now marked 0.19-and-0.55. This means i>40° such that the sini is ~1, woohoo! As to the orbits, although they look 3:2 today; they veer out, and in again. They've constrained-away anything of note within b's 0.6784 AU orbit - which includes the stellar tides obviously. They're not seeing much outside c's 0.9026 AU, neither.

Inner b runs in the "(very) optimistic HZ". As I remain unaware of any rebuttal of Sudarsky's I-III classifications, I'd say b gets sufficient infrared to run it over 350 K into Class III. It looks like Neptune. But bloated out to Saturn size, and stormier, and basically moonless.

Outer c could be a Class II Water Giant, by contrast. Li et al. deemed c as promising for exomoons, also having more Hill to play with. In this much... er. If the two biggies are wandering in and out of mutual proximity... I'm seeing an analogue with Jupiter during the Grand Tack. So HD 45354's moons should look like Jupiter's, likewise in their own mutual resonance - but rockier. And certainly smaller. Less planetary radiation tho'!

Li's crew, seeing room outside c in the HZ, further (or alternately) considered a cold Earthlike. They say such can persist with semimajor 1.22, 1.24, certainly 1.28+ AU. Did I mention this star was no G but K? Such a world would have formed as an iceball and migrated in, less Mars more Ceres. Li might hope that a later impact has boiled that excess into a silicate/ice moon. Or, Imagined Life won't rule out advanced life even in an iceball.