| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
WASP-31 DR2 3545873945303316224 J11174536-1903171 |
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| RA | 11:17:45.3578 | DEC | -19:03:17.216 | ||
| Parallax 2.577 mas |
P.M. RA -28.708 mas/y |
P.M. DEC 0.99 mas/y |
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| MagV 11.66 |
MagR 11.98 |
MagI* 11.069 |
MagJ 10.912 |
MagH 10.709 |
MagK 10.65 |
| MagG 11.816 |
MagGBP 12.083 |
MagGRP 11.398 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2022 | |||||
| Mid-time 2457277.09226 ± 0.00012 BJDTDB |
|||||
| Period 3.4058875 ± 2.7e-07 days |
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| Transit Parameters | |||||
| Anderson et al. 2011 | |||||
| Rp/Rs 0.1271 ± 0.0011 |
a/Rs 8.0 +0.19 -0.19 |
i 84.41 +0.22 -0.22 deg |
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| e - |
ω - deg |
||||
| DepthR* 17.25 mmag |
Duration* 2.67 hours |
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|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Anderson et al. 2011 | |||||
| Teff 6302.0 +102.0 -102.0 K |
Log(g) 4.31 +0.023 -0.023 cm/s2 |
Fe/H -0.2 +0.09 -0.09 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | LOW | ||||
| Minimum aperture | 5.68" | ||||
| Total Observations (Recent) | 34 (3) | ||||
| O-C | -0.18 ± 0.44 minutes | ||||
| ExoClock Observations (Recent) | 11 (3) | ||||
| Space Observations (Recent) | 12 (0) | ||||
| ETD Observations (Recent) | 4 (0) | ||||
| Literature Mid-times (Recent) | 7 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.12499 ± 0.00057 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| WASP-31b (LOW) 2024-02-22 | Darryl Madison Ajijic Observatory | Celestron CPC 800 Edge HD ZWO2400MC / Clear / 120.0 | -3.65 ± 1.87 | |
| WASP-31b (LOW) 2024-02-12 | Antelm Ginard IAC | IAC Telescope CAMELOT2 / R / 120.0 | -0.1 ± 2.59 | |
| WASP-31b (LOW) 2024-01-19 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | 1.2 ± 0.82 | |
| WASP-31b (LOW) 2023-01-23 | Anaël Wünsche El Sauce Observatory | CDK Planewave Chili Moravian G4 16k / Lum / 120.0 | 3.59 ± 1.18 | |
| WASP-31b (LOW) 2023-01-23 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 180.0 | -3.18 ± 1.18 | |
| WASP-31b (LOW) 2022-06-09 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -2.48 ± 1.01 | |
| WASP-31b (LOW) 2022-05-23 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -3.87 ± 1.73 | |
| WASP-31b (LOW) 2021-06-13 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 2.09 ± 1.01 | |
| WASP-31b (LOW) 2021-03-30 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 1.7 ± 1.15 | |
| WASP-31b (LOW) 2021-03-23 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 1.23 ± 1.15 | |
| WASP-31b (LOW) 2020-04-03 | Phil Evans El Sauce | Planewave CDK14 SBIG STT 1603-3 / R / 180.0 | -1.22 ± 1.3 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| WASP-31b (LOW) 2021-03-30 | TESS | 0.95 ± 0.99 | ||
| WASP-31b (LOW) 2021-03-26 | TESS | -1.23 ± 0.96 | ||
| WASP-31b (LOW) 2021-03-23 | TESS | 0.03 ± 0.92 | ||
| WASP-31b (LOW) 2021-03-16 | TESS | -0.13 ± 0.92 | ||
| WASP-31b (LOW) 2021-03-13 | TESS | -1.0 ± 0.99 | ||
| WASP-31b (LOW) 2021-03-09 | TESS | -1.19 ± 0.94 | ||
| WASP-31b (LOW) 2019-03-25 | TESS | -1.36 ± 1.01 | ||
| WASP-31b (LOW) 2019-03-22 | TESS | 2.14 ± 0.86 | ||
| WASP-31b (LOW) 2019-03-18 | TESS | -0.1 ± 0.95 | ||
| WASP-31b (LOW) 2019-03-11 | TESS | -0.55 ± 0.92 | ||
| WASP-31b (LOW) 2019-03-08 | TESS | 0.17 ± 0.96 | ||
| WASP-31b (LOW) 2019-03-04 | TESS | -0.85 ± 0.95 | ||
ETD Observations |
||||
| Planet Observation Date |
Observer(s) | ETD link | O-C minutes |
|
| WASP-31b (LOW) 2023-02-26 | Giuseppe Conzo | 1677453297 | 3.37 ± 1.38 | |
| WASP-31b (LOW) 2014-05-19 | Phil Evans | 1400634133 | -2.34 ± 1.58 | |
| WASP-31b (LOW) 2012-04-16 | Phil Evans | 1334615700 | -1.18 ± 1.28 | |
| WASP-31b (LOW) 2011-03-28 | Ivan Curtis | 1301744254 | -2.35 ± 3.74 | |
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2013-03-19 | Sing et al. 2015 | 0.27 ± 0.62 | ||
| 2013-03-09 | Sing et al. 2015 | -0.25 ± 0.46 | ||
| 2012-07-10 | Sing et al. 2015 | -0.86 ± 0.59 | ||
| 2012-06-26 | Sing et al. 2015 | -0.19 ± 0.53 | ||
| 2012-05-13 | Sing et al. 2015 | -0.0 ± 0.71 | ||
| 2011-01-26 | Dragomir et al. 2011 | -0.23 ± 2.02 | ||
| 2009-12-27 | Anderson et al. 2011 | 0.56 ± 0.43 | ||