**Table 4:** Orbital solutions for FN Sgr.
Component	K	$\gamma_0$	e	$\omega$	T₀¹	$\Delta T^{2}$	$a \sin i$	f(M)
	[km s^-1]	[km s^-1]		[deg]	[JD 24...]	[day]	[AU]	[ $M_\odot$ ]
M giant	$10.0\pm0.3$	$-53.4\pm0.2$	0³			2.2	0.52	0.0580
M giant	$10.0\pm0.3$	$-53.4\pm0.2$	$0.06\pm0.03$	$368\pm29$	50995	7.1	0.52	0.0586
cF-abs	$22.0\pm1.5$	$-48.2\pm0.9$	0³		50718	-24.8	1.15	0.6300
cF-abs	$23.3\pm1.0$	$-47.5\pm0.6$	$0.33\pm0.05$	$240\pm9$	51614	-16.4	1.15	0.6259
He II wings	$16.8\pm2.0$	$-51.3\pm1.2$	0³			29.0	0.88	0.2795
He II wings	$18.3\pm1.4$	$-51.6\pm1.1$	$0.33\pm0.10$	$271\pm15$	53424	26.8	0.90	0.3042
H $\alpha$ +H $\beta$ wings	$11.0\pm1.3$	$-51.2\pm0.8$	0³			-19.1	0.57	0.0783
Fe II	$9.3\pm1.8$	$-60.0\pm1.8$	0³			-75.3	0.48	0.0468
He I	$15.8\pm1.0$	$-54.1\pm0.8$	0³			-32.2	0.82	0.2310
He II	$16.5\pm1.3$	$-53.8\pm0.8$	0³			-33.1	0.86	0.2656
[Fe VII] $\lambda$ 6087	$21.7\pm2.9$	$-66.2\pm1.8$	0³			95.2	1.13	0.6028