| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
CD-27 15244 DR2 6801474136516893184 J21063165-2641333 |
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| RA | 21:06:31.6564 | DEC | -26:41:33.474 | ||
| Parallax 2.89 mas |
P.M. RA -4.711 mas/y |
P.M. DEC -54.25 mas/y |
|||
| MagV 11.3 |
MagR* 10.965 |
MagI* 10.55 |
MagJ 10.135 |
MagH 9.825 |
MagK 9.722 |
| MagG 11.193 |
MagGBP 11.551 |
MagGRP 10.682 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459359.90284 ± 0.0009 BJDTDB |
|||||
| Period 9.476918 ± 1.5e-05 days |
|||||
| Transit Parameters | |||||
| Rodriguez et al. 2019 | |||||
| Rp/Rs 0.05588 ± 0.00091 |
a/Rs 11.09 +0.28 -0.3 |
i 88.2 +1.1 -1.0 deg |
|||
| e 0.3806 +0.0093 -0.009 |
ω 57.1 +1.7 -1.7 deg |
||||
| DepthR* 4.13 mmag |
Duration* 4.73 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Rodriguez et al. 2019 | |||||
| Teff 5645.0 +50.0 -50.0 K |
Log(g) 3.99 +0.03 -0.03 cm/s2 |
Fe/H 0.148 +0.079 -0.08 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | HIGH | ||||
| Minimum aperture | 12.29" | ||||
| Total Observations (Recent) | 8 (1) | ||||
| O-C | -1.26 ± 2.45 minutes | ||||
| ExoClock Observations (Recent) | 4 (1) | ||||
| Space Observations (Recent) | 3 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.0567 ± 0.001 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| TOI-172b (HIGH) 2025-08-17 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / R / 45.0 | -1.26 ± 2.45 | |
| TOI-172b (HIGH) 2021-09-16 | Anaël Wünsche El Sauce Observatory | CDK Planewave Chili Moravian G4 16k / R / 120.0 | -2.67 ± 4.32 | |
| TOI-172b (HIGH) 2021-07-21 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 11.31 ± 3.46 | |
| TOI-172b (HIGH) 2021-07-02 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | 2.0 ± 1.87 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| TOI-172b (HIGH) 2023-07-30 | TESS | -1.08 ± 1.73 | ||
| TOI-172b (HIGH) 2020-08-14 | TESS | -3.31 ± 2.3 | ||
| TOI-172b (HIGH) 2020-08-04 | TESS | -1.85 ± 2.16 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2018-07-27 | Rodriguez et al. 2019 | 0.32 ± 2.45 | ||