| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
CD-35 15858A DR2 2323985539482908416 J23364036-3436404 |
||||
| RA | 23:36:40.3765 | DEC | -34:36:40.562 | ||
| Parallax 4.264 mas |
P.M. RA 87.963 mas/y |
P.M. DEC -8.556 mas/y |
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| MagV 11.15 |
MagR 11.5 |
MagI* 10.425 |
MagJ 10.374 |
MagH 10.084 |
MagK 10.002 |
| MagG 11.397 |
MagGBP 11.751 |
MagGRP 10.911 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2458972.256311 ± 8.8e-05 BJDTDB |
|||||
| Period 1.38665306 ± 1.3e-07 days |
|||||
| Transit Parameters | |||||
| Hellier et al. 2019 | |||||
| Rp/Rs 0.1109 ± 0.0009 |
a/Rs** 4.78 +0.17 -0.17 |
i 85.2 +1.1 -1.1 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 15.74 mmag |
Duration* 2.32 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Hellier et al. 2019 | |||||
| Teff 5800.0 +140.0 -140.0 K |
Log(g) 4.37 +0.03 -0.03 cm/s2 |
Fe/H 0.16 +0.14 -0.14 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | LOW | ||||
| Minimum aperture | 5.0" | ||||
| Total Observations (Recent) | 57 (4) | ||||
| O-C | -1.78 ± 0.9 minutes | ||||
| ExoClock Observations (Recent) | 9 (4) | ||||
| Space Observations (Recent) | 47 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.11193 ± 0.00026 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| WASP-173Ab (LOW) 2025-12-01 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -4.51 ± 1.34 | |
| WASP-173Ab (LOW) 2025-11-13 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -0.47 ± 1.44 | |
| WASP-173Ab (LOW) 2025-10-19 | Joaquin M. Ruiz-Luque Asociación Argentina "Amigos de la Astronomía" | Meade LX200 EMC SBIG ST-9XE / Clear / 40.0 | 0.92 ± 2.59 | |
| WASP-173Ab (LOW) 2025-09-24 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 7.33 ± 4.32 | |
| WASP-173Ab (LOW) 2023-09-13 | Anaël Wünsche El Sauce Observatory | CDK Planewave Chili Moravian G4 16k / Lum / 120.0 | -3.98 ± 1.24 | |
| WASP-173Ab (LOW) 2023-09-09 | Luciano Correa Pico dos Dias | Perkin-Elmer Andor iKon-L CCD / R / 15.0 | -1.31 ± 0.82 | |
| WASP-173Ab (LOW) 2023-08-15 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / V / 30.0 | 7.19 ± 3.17 | |
| WASP-173Ab (LOW) 2022-10-21 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 0.0 ± 2.59 | |
| WASP-173Ab (LOW) 2021-06-21 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 1.33 ± 1.15 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| WASP-173Ab (LOW) 2023-09-17 | TESS | 1.74 ± 0.68 | ||
| WASP-173Ab (LOW) 2023-09-16 | TESS | -0.93 ± 0.73 | ||
| WASP-173Ab (LOW) 2023-09-14 | TESS | -0.34 ± 0.62 | ||
| WASP-173Ab (LOW) 2023-09-13 | TESS | 0.43 ± 0.69 | ||
| WASP-173Ab (LOW) 2023-09-11 | TESS | -0.2 ± 0.75 | ||
| WASP-173Ab (LOW) 2023-09-10 | TESS | 0.8 ± 0.68 | ||
| WASP-173Ab (LOW) 2023-09-09 | TESS | -1.37 ± 0.72 | ||
| WASP-173Ab (LOW) 2023-09-05 | TESS | 0.86 ± 0.71 | ||
| WASP-173Ab (LOW) 2023-09-03 | TESS | -0.2 ± 0.66 | ||
| WASP-173Ab (LOW) 2023-09-02 | TESS | 0.03 ± 0.73 | ||
| WASP-173Ab (LOW) 2023-08-30 | TESS | 0.62 ± 0.66 | ||
| WASP-173Ab (LOW) 2023-08-29 | TESS | -0.2 ± 0.65 | ||
| WASP-173Ab (LOW) 2023-08-27 | TESS | -1.36 ± 0.65 | ||
| WASP-173Ab (LOW) 2023-08-26 | TESS | -0.38 ± 0.66 | ||
| WASP-173Ab (LOW) 2020-09-19 | TESS | -0.68 ± 0.73 | ||
| WASP-173Ab (LOW) 2020-09-18 | TESS | 0.45 ± 0.65 | ||
| WASP-173Ab (LOW) 2020-09-17 | TESS | 0.11 ± 0.63 | ||
| WASP-173Ab (LOW) 2020-09-15 | TESS | 1.73 ± 0.69 | ||
| WASP-173Ab (LOW) 2020-09-14 | TESS | -0.63 ± 0.68 | ||
| WASP-173Ab (LOW) 2020-09-12 | TESS | 1.27 ± 0.69 | ||
| WASP-173Ab (LOW) 2020-09-11 | TESS | -0.91 ± 0.69 | ||
| WASP-173Ab (LOW) 2020-09-10 | TESS | -0.03 ± 0.69 | ||
| WASP-173Ab (LOW) 2020-09-04 | TESS | 0.35 ± 0.63 | ||
| WASP-173Ab (LOW) 2020-09-03 | TESS | 0.3 ± 0.62 | ||
| WASP-173Ab (LOW) 2020-09-01 | TESS | 0.26 ± 0.76 | ||
| WASP-173Ab (LOW) 2020-08-31 | TESS | -0.72 ± 0.71 | ||
| WASP-173Ab (LOW) 2020-08-30 | TESS | 1.3 ± 0.69 | ||
| WASP-173Ab (LOW) 2020-08-28 | TESS | -0.39 ± 0.68 | ||
| WASP-173Ab (LOW) 2020-08-27 | TESS | -0.44 ± 0.68 | ||
| WASP-173Ab (LOW) 2018-09-18 | TESS | -0.86 ± 0.81 | ||
| WASP-173Ab (LOW) 2018-09-17 | TESS | 1.65 ± 0.6 | ||
| WASP-173Ab (LOW) 2018-09-15 | TESS | 0.64 ± 0.75 | ||
| WASP-173Ab (LOW) 2018-09-14 | TESS | 1.01 ± 0.69 | ||
| WASP-173Ab (LOW) 2018-09-13 | TESS | 0.52 ± 0.69 | ||
| WASP-173Ab (LOW) 2018-09-11 | TESS | -0.37 ± 0.68 | ||
| WASP-173Ab (LOW) 2018-09-10 | TESS | -0.38 ± 0.71 | ||
| WASP-173Ab (LOW) 2018-09-08 | TESS | -1.43 ± 0.68 | ||
| WASP-173Ab (LOW) 2018-09-07 | TESS | -1.08 ± 0.68 | ||
| WASP-173Ab (LOW) 2018-09-04 | TESS | -1.11 ± 0.68 | ||
| WASP-173Ab (LOW) 2018-09-03 | TESS | -0.0 ± 0.66 | ||
| WASP-173Ab (LOW) 2018-09-02 | TESS | -0.83 ± 0.62 | ||
| WASP-173Ab (LOW) 2018-08-31 | TESS | 0.84 ± 0.68 | ||
| WASP-173Ab (LOW) 2018-08-30 | TESS | 0.43 ± 0.6 | ||
| WASP-173Ab (LOW) 2018-08-28 | TESS | 0.79 ± 0.69 | ||
| WASP-173Ab (LOW) 2018-08-27 | TESS | -1.04 ± 0.76 | ||
| WASP-173Ab (LOW) 2018-08-26 | TESS | 1.49 ± 0.63 | ||
| WASP-173Ab (LOW) 2018-08-24 | TESS | -0.11 ± 0.66 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2015-09-23 | Hellier et al. 2019 | -0.28 ± 0.29 | ||