| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
WASP-181 DR2 2512413932376364288 J01471037+0307587 |
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| RA | 01:47:10.3796 | DEC | +03:07:58.897 | ||
| Parallax 2.257 mas |
P.M. RA -5.343 mas/y |
P.M. DEC -21.97 mas/y |
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| MagV 12.91 |
MagR 12.81 |
MagI 14.432 |
MagJ 11.785 |
MagH 11.522 |
MagK 11.443 |
| MagG 12.783 |
MagGBP 13.116 |
MagGRP 12.302 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459166.79292 ± 0.0002 BJDTDB |
|||||
| Period 4.51950074 ± 8.7e-07 days |
|||||
| Transit Parameters | |||||
| Turner et al. 2019 | |||||
| Rp/Rs 0.1261 ± 0.0015 |
a/Rs 12.09 +0.54 -0.54 |
i 88.38 +0.76 -0.59 deg |
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| e - |
ω - deg |
||||
| DepthR* 20.62 mmag |
Duration* 3.07 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Turner et al. 2019 | |||||
| Teff 5839.0 +70.0 -70.0 K |
Log(g) 4.38 +0.08 -0.08 cm/s2 |
Fe/H 0.09 +0.04 -0.04 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 7.4" | ||||
| Total Observations (Recent) | 21 (1) | ||||
| O-C | 1.2 ± 1.04 minutes | ||||
| ExoClock Observations (Recent) | 9 (1) | ||||
| Space Observations (Recent) | 11 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.12386 ± 0.00082 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| WASP-181b (MEDIUM) 2025-10-17 | Lionel Rousselot Private observatory Vierzon | Newton 250/740 ZWO 533 monochrome / Lum / 120.0 | -0.12 ± 1.3 | |
| WASP-181b (MEDIUM) 2025-01-09 | Simon Dawes William James II | Celestron Edge11 HD Risingcam Monochrome SONY imx571 / Lum / 300.0 | 2.21 ± 3.17 | |
| WASP-181b (MEDIUM) 2024-11-30 | Bryan Martin Tiger Butte Observatory Remote | AG Optical IDK ZWO ASI 294 / Lum / 180.0 | 5.09 ± 2.59 | |
| WASP-181b (MEDIUM) 2024-10-02 | Bryan Martin Tiger Butte Observatory Remote | AG Optical IDK ZWO ASI 294 / Lum / 180.0 | 2.37 ± 3.46 | |
| WASP-181b (MEDIUM) 2023-12-09 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 180.0 | -0.75 ± 0.85 | |
| WASP-181b (MEDIUM) 2023-10-15 | Dim Stouraitis Galilaios | SCT SXVF-H9 Starlight-Xpress / R / 120.0 | -3.3 ± 3.17 | |
| WASP-181b (MEDIUM) 2023-10-11 | Bryan Martin Tiger Butte Observatory Remote | AG Optical IDK ZWO ASI 294 / Lum / 180.0 | 5.05 ± 2.02 | |
| WASP-181b (MEDIUM) 2021-11-27 | Robert Roth TURMX Observatory | CFF Telescopes 160mm APO ZWO ASI6200MM Pro / Lum / 90.0 | -1.41 ± 1.01 | |
| WASP-181b (MEDIUM) 2021-11-18 | Robert Roth TURMX Observatory | Planewave CDK17 QHY600M / rpr / 120.0 | -1.41 ± 2.02 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| WASP-181b (MEDIUM) 2023-10-11 | TESS | 2.46 ± 1.73 | ||
| WASP-181b (MEDIUM) 2023-10-06 | TESS | 0.85 ± 1.32 | ||
| WASP-181b (MEDIUM) 2023-09-27 | TESS | -0.15 ± 1.3 | ||
| WASP-181b (MEDIUM) 2023-09-23 | TESS | 0.45 ± 1.58 | ||
| WASP-181b (MEDIUM) 2021-10-09 | TESS | 0.18 ± 1.58 | ||
| WASP-181b (MEDIUM) 2021-10-04 | TESS | 0.27 ± 1.21 | ||
| WASP-181b (MEDIUM) 2021-09-30 | TESS | -0.23 ± 1.22 | ||
| WASP-181b (MEDIUM) 2021-09-21 | TESS | -0.03 ± 1.2 | ||
| WASP-181b (MEDIUM) 2021-09-12 | TESS | -0.5 ± 1.34 | ||
| WASP-181b (MEDIUM) 2021-09-07 | TESS | 0.74 ± 1.35 | ||
| WASP-181b (MEDIUM) 2021-08-25 | TESS | -0.53 ± 1.58 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2016-12-25 | Turner et al. 2019 | 0.13 ± 0.5 | ||