What star can give an earth-like planet a 1-day year?

I did the orbital period for a planet orbiting a mass = 1 sol with a 24-hour year, it's got a semi-major axis of 1.82 million miles - far and away beyond the Roche limit, still beyond the corona, but just a tad too hot. Problem!

So what sort of star would be a black body radiator generating earth-like irradiance at 1.82 million miles distance?

I'm also allowing for a strong magnetosphere to shield from solar winds, and an atmosphere sufficient to absorb excess gamma/X-rays.

Earth-like is a loose term with $\pm 10^{\circ}$F mean temperature, and a little tectonic activity never hurt anyone on Mustafar - except Annakin (that's a joke). Seriously, gravity will shake things up but not break the planet, and that's OK.

The star's tidal force replaces the moon. The planet orbits clockwise every 24 hours and rotates anticlockwise from a synchronous rotation every 24 hours (the sun is observed to complete a $360^{\circ}$ altitude arc). You see the same sunrise/set cycle we do and a fairly similar tidal cycle as well - if not a bit more profound in variance - but the very concept of "year" ceases to exist. We just have days. No months, seasons, years, centuries, or millennia etc, etc.

If this is a no-go for an earth-like climate, I can work with a Venus-like planet if that makes anything more realistic.

posted almost 5 years ago

Vogon Poet‭

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