| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
L 231-32 DR2 4781196115469953024 J04333970-5157222 |
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| 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 |
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| 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 2458874.314 ± 0.0011 BJDTDB |
|||||
| Period 3.360166 ± 1.1e-05 days |
|||||
| Transit Parameters | |||||
| Günther et al. 2019 | |||||
| Rp/Rs 0.03 ± 0.0015 |
a/Rs 17.5 +1.5 -3.2 |
i 88.65 +0.85 -1.4 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 1.16 mmag |
Duration* 1.39 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| 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 |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | HIGH | ||||
| Minimum aperture | 79.61" | ||||
| Total Observations (Recent) | 19 (0) | ||||
| O-C | - | ||||
| ExoClock Observations (Recent) | 0 (0) | ||||
| Space Observations (Recent) | 12 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 7 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.0363 ± 0.0013 | ||||
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
|---|---|---|---|---|
| TOI-270b (HIGH) 2020-12-13 | TESS | -3.51 ± 2.59 | ||
| TOI-270b (HIGH) 2020-12-10 | TESS | 1.77 ± 2.59 | ||
| TOI-270b (HIGH) 2020-10-17 | TESS | -3.91 ± 2.88 | ||
| TOI-270b (HIGH) 2020-10-13 | TESS | 4.54 ± 1.73 | ||
| TOI-270b (HIGH) 2020-09-27 | TESS | -3.19 ± 10.22 | ||
| TOI-270b (HIGH) 2020-09-23 | TESS | -12.46 ± 3.74 | ||
| TOI-270b (HIGH) 2018-12-01 | TESS | -22.97 ± 4.18 | ||
| TOI-270b (HIGH) 2018-11-25 | TESS | 1.13 ± 2.02 | ||
| TOI-270b (HIGH) 2018-11-08 | TESS | 23.63 ± 5.9 | ||
| TOI-270b (HIGH) 2018-10-09 | TESS | 1.16 ± 2.74 | ||
| TOI-270b (HIGH) 2018-10-05 | TESS | 2.12 ± 6.19 | ||
| TOI-270b (HIGH) 2018-09-28 | TESS | 2.6 ± 7.49 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2020-10-23 | Kaye et al. 2022 | -1.45 ± 27.59 | ||
| 2020-09-13 | Kaye et al. 2022 | 4.53 ± 7.99 | ||
| 2019-12-13 | Kaye et al. 2022 | 0.33 ± 19.94 | ||
| 2019-09-03 | Kaye et al. 2022 | 2.27 ± 4.48 | ||
| 2019-01-27 | Kaye et al. 2022 | -5.72 ± 9.78 | ||
| 2019-01-24 | Kaye et al. 2022 | -5.6 ± 20.56 | ||
| 2019-01-14 | Kaye et al. 2022 | -6.16 ± 22.82 | ||