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Proper Name	None
Designations	YZ Ceti d, Gliese 54.1 d, Luyten 725-32 d, LHS 138 d, HIP 5643 d
Classification	Earth-mass planet
Orbital Period	4 days, 16 hours
Mean Distance from YZ Ceti	4.1 million km 0.028 AU
Mass	1.14 x Earth
Diameter	1.03 x Earth
Temperature	Not known
Parent star	YZ Ceti, red dwarf in Cetus
Other planets in this system	YZ Ceti b, Earth-mass planet YZ Ceti c, Earth-mass planet

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