| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
L 231-32 DR2 4781196115469953024 J04333970-5157222 |
||||
| RA | 04:33:39.7202 | DEC | -51:57:22.436 | ||
| Parallax 44.456 mas |
P.M. RA 82.944 mas/y |
P.M. DEC -269.755 mas/y |
|||
| MagV 12.617 |
MagR 12.147 |
MagI* 10.418 |
MagJ 9.099 |
MagH 8.531 |
MagK 8.251 |
| MagG 11.631 |
MagGBP 12.87 |
MagGRP 10.543 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2458822.10811 ± 0.00047 BJDTDB |
|||||
| Period 11.379549 ± 2.6e-05 days |
|||||
| Transit Parameters | |||||
| Günther et al. 2019 | |||||
| Rp/Rs 0.05143 ± 0.00074 |
a/Rs 41.56 +0.7 -0.83 |
i 89.69 +0.16 -0.12 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 3.52 mmag |
Duration* 2.15 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Günther et al. 2019 | |||||
| Teff 3386.0 +137.0 -131.0 K |
Log(g) 4.88 +0.068 -0.067 cm/s2 |
Fe/H -0.17 +0.1 -0.1 dex |
|||
| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | HIGH | ||||
| Minimum aperture | 23.36" | ||||
| Total Observations (Recent) | 24 (0) | ||||
| O-C | - | ||||
| ExoClock Observations (Recent) | 2 (0) | ||||
| Space Observations (Recent) | 10 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 12 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.05152 ± 0.00081 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| TOI-270d (HIGH) 2023-11-30 | Magdalena Szkudlarek Deep Sky Chile - ROTUZ | PlaneWave CDK 20 QHY268M pro / R / 60.0 | 11.98 ± 2.02 | |
| TOI-270d (HIGH) 2023-11-30 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / Lum / 60.0 | 10.97 ± 2.74 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| TOI-270d (HIGH) 2020-12-14 | TESS | -5.94 ± 1.87 | ||
| TOI-270d (HIGH) 2020-11-21 | TESS | -6.67 ± 1.73 | ||
| TOI-270d (HIGH) 2020-10-18 | TESS | -6.02 ± 1.73 | ||
| TOI-270d (HIGH) 2020-09-25 | TESS | -7.46 ± 1.21 | ||
| TOI-270d (HIGH) 2018-12-05 | TESS | -6.11 ± 4.61 | ||
| TOI-270d (HIGH) 2018-11-24 | TESS | -4.89 ± 1.73 | ||
| TOI-270d (HIGH) 2018-11-12 | TESS | -8.31 ± 1.37 | ||
| TOI-270d (HIGH) 2018-10-20 | TESS | -15.19 ± 4.18 | ||
| TOI-270d (HIGH) 2018-10-09 | TESS | -10.22 ± 1.58 | ||
| TOI-270d (HIGH) 2018-09-28 | TESS | -9.14 ± 1.73 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2020-09-02 | Kaye et al. 2022 | -5.31 ± 0.53 | ||
| 2020-07-19 | Kaye et al. 2022 | -3.3 ± 1.01 | ||
| 2020-01-07 | Kaye et al. 2022 | 1.08 ± 0.35 | ||
| 2019-12-04 | Kaye et al. 2022 | 1.08 ± 0.33 | ||
| 2019-11-23 | Kaye et al. 2022 | 4.85 ± 2.04 | ||
| 2019-11-23 | Kaye et al. 2022 | -2.15 ± 1.2 | ||
| 2019-10-20 | Kaye et al. 2022 | 1.75 ± 1.02 | ||
| 2019-10-08 | Kaye et al. 2022 | 1.63 ± 0.68 | ||
| 2019-09-27 | Kaye et al. 2022 | 2.66 ± 1.8 | ||
| 2019-09-27 | Kaye et al. 2022 | -0.74 ± 0.48 | ||
| 2019-06-16 | Kaye et al. 2022 | 2.89 ± 0.36 | ||
| 2019-02-23 | Kaye et al. 2022 | -2.07 ± 1.08 | ||