天節二,即金牛座ρ(ρ Tau,ρ Tauri)是一個位於金牛座的恆星,它是畢宿星團的成員,距離地球約152光年。
天節二是一顆白色A-型主序星,視星等為+4.65。它也是一顆盾牌座δ型變星,光變範圍為0.01等,光變周期為1.61小時。
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