The multi-planet system TOI-5624: four transiting sub-Neptunes with an outer companion revealed by transit-timing variations

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Table 1

Stellar properties of TOI-5624.

Star names	TOI-5624 TIC 53498154 BD+50 1888 Gaia DR3 1546352569189373952
Parameter	Value	Source
RA [h:min:s]	12:03:22.64	Gaia DR3
Dec [°:′:″]	+49:15:4.41	Gaia DR3
G mag	10.5435 ± 0.0028	Gaia DR3
π [mas]	9.840 ± 0.016	Gaia DR3^(a)

T_eff [K]	5327 ± 64	Spectroscopy
[Fe/H]	–0.023 ± 0.040	Spectroscopy
log g [cgs]	4.49 ± 0.03	Spec & Gaia DR3
log R′_HK	–4.50 ± 0.03	Spectroscopy
v sin i_* [km s⁻¹]	2.0 ± 0.5	Spectroscopy
R_* [R_⊙]	0.820 ± 0.005	IRFM
M_* [M_⊙]	${0.858}_{- 0.029}^{+ 0.033}$ $Mathematical equation: $0.858_{-0.029}^{+0.033}$$	Isochrones
t_* [Gyr]	${5.7}_{- 2.3}^{+ 2.6}$ $Mathematical equation: $5.7_{-2.3}^{+2.6}$$	Isochrones
L_* [L_⊙]	0.486 ± (0.024	From T_eff & R_*
ρ_* [ρ_⊙]	1.556 ± 0.063	From M_* & R_*

Notes. RA & Dec are reported in the J2000 reference frame. ^(a)Zeropoint correction from Lindegren et al. (2021) applied.

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