Primärstjärnan HD 31975 är en gul till vit stjärna i huvudserien av spektralklass F9 V Fe-0.5. som har ett svagt underskott av järn i dess spektrum.
Den har en massa som är ca 1,1 solmassor, en radie som är ca 1,5 solradier och har ca 2,8 gånger solens utstrålning av energi från dess fotosfär vid en effektiv temperatur av ca 6200 K.
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