Stable star with minimal outbursts
Surface average temperature circa 280-310 degrees K
Surface pressure circa 1 bar or 100000 pascals
Surface gravity circa 10 meters/second2
Overall composition approximating Earth
Density roughly same as Earth
Moderate magnetic field similar to Earth
Ocean covering at least 25% of planet & at least 2000 meters average depth (otherwise no rain)
No excessive concentrations of toxic elements in crust
Plate tectonics (otherwise, no land surface above sea level)
Atmosphere free of toxic gasses such as ammonia, cyanide, etc
Rotation period circa 24 hours
Rotation axis approximately perpendicular to orbital plane
Low to moderate volcanism
Astronomical environment without major potential impactors
THAT'S "Earth Like".
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