| Parameter . | K2-18 . | TOI-732 . |
|---|---|---|
| Host star | ||
| Spectral type | M2.5|$^{(1)}$| | M3.5 |$^{(6)}$| |
| Distance (pc) | |$38.099\pm 0.038^{(2)}$| | |$22.027\pm 0.014^{(2)}$| |
| V (mag) | |$13.477\pm 0.042^{(3)}$| | |$13.140\pm 0.035^{(3)}$| |
| |$T_{\mathrm{eff}}$| (K) | |$3590\pm 93^{(4)}$| | |$3360\pm 51^{(6)}$| |
| R|$_{\star }$| (R|$_{\mathrm{\odot }}$|) | |$0.450\pm 0.013^{(4)}$| | |$0.380\pm 0.012^{(8)}$| |
| Activity | Moderate|$^{(4)}$| | Quiet|$^{(7)}$| |
| Hycean candidate | ||
| Planet name | K2-18b | TOI-732c |
| P|$_{\mathrm{orb}}$| (d) | |$32.93962\pm 1.0\times 10^{-4}\, ^{(5)}$| | |$12.25228\pm 1.3\times 10^{-5}\, ^{(8)}$| |
| Semimajor axis, a|$_{\mathrm{p}}$| (au) | |$0.1591\pm 0.0004^{(5)}$| | |$0.0757\pm 0.0018^{(8)}$| |
| R|$_{\mathrm{pl}}$| (R|$_{\rm{\oplus }}$|) | 2.51|$^{+0.13}_{-0.18}\, ^{(4)}$| | 2.39|$^{+0.10}_{-0.11}\, ^{(8)}$| |
| M|$_{\mathrm{pl}}$| (M|$_{\rm{\oplus }}$|) | |$8.63\pm 1.35^{(5)}$| | 8.04|$^{+0.50}_{-0.48}\, ^{(8)}$| |
| Parameter . | K2-18 . | TOI-732 . |
|---|---|---|
| Host star | ||
| Spectral type | M2.5|$^{(1)}$| | M3.5 |$^{(6)}$| |
| Distance (pc) | |$38.099\pm 0.038^{(2)}$| | |$22.027\pm 0.014^{(2)}$| |
| V (mag) | |$13.477\pm 0.042^{(3)}$| | |$13.140\pm 0.035^{(3)}$| |
| |$T_{\mathrm{eff}}$| (K) | |$3590\pm 93^{(4)}$| | |$3360\pm 51^{(6)}$| |
| R|$_{\star }$| (R|$_{\mathrm{\odot }}$|) | |$0.450\pm 0.013^{(4)}$| | |$0.380\pm 0.012^{(8)}$| |
| Activity | Moderate|$^{(4)}$| | Quiet|$^{(7)}$| |
| Hycean candidate | ||
| Planet name | K2-18b | TOI-732c |
| P|$_{\mathrm{orb}}$| (d) | |$32.93962\pm 1.0\times 10^{-4}\, ^{(5)}$| | |$12.25228\pm 1.3\times 10^{-5}\, ^{(8)}$| |
| Semimajor axis, a|$_{\mathrm{p}}$| (au) | |$0.1591\pm 0.0004^{(5)}$| | |$0.0757\pm 0.0018^{(8)}$| |
| R|$_{\mathrm{pl}}$| (R|$_{\rm{\oplus }}$|) | 2.51|$^{+0.13}_{-0.18}\, ^{(4)}$| | 2.39|$^{+0.10}_{-0.11}\, ^{(8)}$| |
| M|$_{\mathrm{pl}}$| (M|$_{\rm{\oplus }}$|) | |$8.63\pm 1.35^{(5)}$| | 8.04|$^{+0.50}_{-0.48}\, ^{(8)}$| |
Note. (1) Benneke et al. (2017), (2) Gaia Collaboration (2022), (3) Zacharias et al. (2013), (4) Hardegree-Ullman et al. (2020), (5) Cloutier et al. (2019), (6) Nowak et al. (2020), (7) Cloutier et al. (2020), (8) Bonfanti et al. (2024).
| Parameter . | K2-18 . | TOI-732 . |
|---|---|---|
| Host star | ||
| Spectral type | M2.5|$^{(1)}$| | M3.5 |$^{(6)}$| |
| Distance (pc) | |$38.099\pm 0.038^{(2)}$| | |$22.027\pm 0.014^{(2)}$| |
| V (mag) | |$13.477\pm 0.042^{(3)}$| | |$13.140\pm 0.035^{(3)}$| |
| |$T_{\mathrm{eff}}$| (K) | |$3590\pm 93^{(4)}$| | |$3360\pm 51^{(6)}$| |
| R|$_{\star }$| (R|$_{\mathrm{\odot }}$|) | |$0.450\pm 0.013^{(4)}$| | |$0.380\pm 0.012^{(8)}$| |
| Activity | Moderate|$^{(4)}$| | Quiet|$^{(7)}$| |
| Hycean candidate | ||
| Planet name | K2-18b | TOI-732c |
| P|$_{\mathrm{orb}}$| (d) | |$32.93962\pm 1.0\times 10^{-4}\, ^{(5)}$| | |$12.25228\pm 1.3\times 10^{-5}\, ^{(8)}$| |
| Semimajor axis, a|$_{\mathrm{p}}$| (au) | |$0.1591\pm 0.0004^{(5)}$| | |$0.0757\pm 0.0018^{(8)}$| |
| R|$_{\mathrm{pl}}$| (R|$_{\rm{\oplus }}$|) | 2.51|$^{+0.13}_{-0.18}\, ^{(4)}$| | 2.39|$^{+0.10}_{-0.11}\, ^{(8)}$| |
| M|$_{\mathrm{pl}}$| (M|$_{\rm{\oplus }}$|) | |$8.63\pm 1.35^{(5)}$| | 8.04|$^{+0.50}_{-0.48}\, ^{(8)}$| |
| Parameter . | K2-18 . | TOI-732 . |
|---|---|---|
| Host star | ||
| Spectral type | M2.5|$^{(1)}$| | M3.5 |$^{(6)}$| |
| Distance (pc) | |$38.099\pm 0.038^{(2)}$| | |$22.027\pm 0.014^{(2)}$| |
| V (mag) | |$13.477\pm 0.042^{(3)}$| | |$13.140\pm 0.035^{(3)}$| |
| |$T_{\mathrm{eff}}$| (K) | |$3590\pm 93^{(4)}$| | |$3360\pm 51^{(6)}$| |
| R|$_{\star }$| (R|$_{\mathrm{\odot }}$|) | |$0.450\pm 0.013^{(4)}$| | |$0.380\pm 0.012^{(8)}$| |
| Activity | Moderate|$^{(4)}$| | Quiet|$^{(7)}$| |
| Hycean candidate | ||
| Planet name | K2-18b | TOI-732c |
| P|$_{\mathrm{orb}}$| (d) | |$32.93962\pm 1.0\times 10^{-4}\, ^{(5)}$| | |$12.25228\pm 1.3\times 10^{-5}\, ^{(8)}$| |
| Semimajor axis, a|$_{\mathrm{p}}$| (au) | |$0.1591\pm 0.0004^{(5)}$| | |$0.0757\pm 0.0018^{(8)}$| |
| R|$_{\mathrm{pl}}$| (R|$_{\rm{\oplus }}$|) | 2.51|$^{+0.13}_{-0.18}\, ^{(4)}$| | 2.39|$^{+0.10}_{-0.11}\, ^{(8)}$| |
| M|$_{\mathrm{pl}}$| (M|$_{\rm{\oplus }}$|) | |$8.63\pm 1.35^{(5)}$| | 8.04|$^{+0.50}_{-0.48}\, ^{(8)}$| |
Note. (1) Benneke et al. (2017), (2) Gaia Collaboration (2022), (3) Zacharias et al. (2013), (4) Hardegree-Ullman et al. (2020), (5) Cloutier et al. (2019), (6) Nowak et al. (2020), (7) Cloutier et al. (2020), (8) Bonfanti et al. (2024).
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