* alf Oph

[ α=17.6h, δ=12.6° | A5IVnn | d=14.9 pc ]

* 55 Oph , * alf Oph , * alf Oph A , * alf Oph B , GJ 681 , HD 159561 , HIP 86032 , HR 6556 , NAME Rasalhague , TYC 1000-2508-1

Figs: sed | limits

I/O: data | model

Post: fit | extra

Best fit:

T_star = 7850 ± 30 K , L_star = 25.3 ± 0.8 L_Sun , R_star = 2.72 ± 0.04 R_Sun