Open Access
Table 2
Stellar parameters of TOI-283.
| Parameter | Value | Reference |
|---|---|---|
| Identifiers | ||
| TYC | 8919-520-1 | Høg et al. (2000) |
| TOI | 283 | TESS Alerts |
| TIC | 382626661 | Stassun et al. (2018) |
| Gaia DR3 | 5275527747228841344 | Gaia Collaboration (2023) |
| 2MASS | J07541669-6526294 | Skrutskie et al. (2006) |
| Coordinates | ||
| α (ICRS, J2000) | 07:54:16.71 | Gaia DR3 |
| δ (ICRS, J2000) | −65:26:29.58 | Gaia DR3 |
| Photometry | ||
| B [mag] | 11.180 ± 0.010 | UCAC4 |
| GBP [mag] | 10.618 ± 0.003 | Gaia DR3 |
| V [mag] | 10.420 ± 0.120 | UCAC4 |
| G [mag] | 10.199 ± 0.003 | Gaia DR3 |
| GRP [mag] | 9.621 ± 0.004 | Gaia DR3 |
| J [mag] | 9.001 ± 0.027 | 2MASS |
| H [mag] | 8.554 ± 0.040 | 2MASS |
| Ks [mag] | 8.517 ± 0.026 | 2MASS |
| W1 [mag] | 8.423 ± 0.022 | AllWISE |
| W2 [mag] | 8.483 ± 0.020 | AllWISE |
| W3 [mag] | 8.456 ± 0.021 | AllWISE |
| W4 [mag] | 8.480 ± 0.185 | AllWISE |
| Parallax and kinematics | ||
| π [mas] | 12.12 ± 0.01 | Gaia DR3 |
| d[pc] | ![$\[82.43_{-0.07}^{+0.06}\]$](/articles/aa/full_html/2025/11/aa53968-25/aa53968-25-eq1.png) |
Bailer-Jones et al. (2021) |
| μα cos δ [mas yr−1] | −30.84 ± 0.02 | Gaia DR3 |
| μδ [mas yr−1] | 16.02 ± 0.02 | Gaia DR3 |
| γ [km s−1] | −12.64 ± 0.17 | Gaia DR3 |
| Photospheric parameters | ||
| Teff [K] | 5213 ± 70 | This work |
| log g | 4.50 ± 0.03 | This work |
| log g(cgs)a | 4.42 ± 0.12 | This work |
| log gt(cgs)b | 4.50 ± 0.03 | This work |
| [Fe/H] | −0.09 ± 0.05 | This work |
| ξt [km s−1] | 0.71 ± 0.06 | This work |
| log10(R′HK) | −4.92 ± 0.23 | This work |
| Physical parameters | ||
| M⋆ [M⊙] | 0.80 ± 0.01 | This work |
| R⋆ [R⊙] | 0.85 ± 0.03 | This work |
| ρ⋆ [g cm−3] | 1.84 ± 0.20 | This work |
| L [L⊙] | 0.46 ± 0.02 | This work |
| Prot [days] | ![$\[30.0_{-4.1}^{+5.8}\]$](/articles/aa/full_html/2025/11/aa53968-25/aa53968-25-eq2.png) |
This work |
| Age [Gyr] | 10.4 ± 3.3 | This work |
Notes. Gaia DR3: Gaia Collaboration (2023); UCAC: Zacharias et al. (2013); 2MASS: Skrutskie et al. (2006). AllWISE: Cutri et al. (2021). a From spectral analysis; b trigonometric surface gravity using Gaia DR3 data.
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