| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HD 332231 DR2 2056007995732413312 J20265791+3344401 |
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| RA | 20:26:57.9179 | DEC | +33:44:40.024 | ||
| Parallax 12.368 mas |
P.M. RA -36.869 mas/y |
P.M. DEC -14.651 mas/y |
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| MagV 8.56 |
MagR* 8.216 |
MagI* 7.943 |
MagJ 7.509 |
MagH 7.3 |
MagK 7.242 |
| MagG 8.418 |
MagGBP 8.715 |
MagGRP 8.0 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
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|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459384.5968 ± 0.0029 BJDTDB |
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| Period 18.71175 ± 0.00013 days |
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| Transit Parameters | |||||
| Dalba et al. 2020 | |||||
| Rp/Rs 0.06976 ± 0.00041 |
a/Rs 24.21 +0.62 -0.78 |
i 89.68 +0.22 -0.28 deg |
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| e 0.032 +0.03 -0.022 |
ω 47.0 +69.0 -74.0 deg |
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| DepthR* 6.4 mmag |
Duration* 6.12 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 | |||||
| Dalba et al. 2020 | |||||
| Teff 6089.0 +97.0 -96.0 K |
Log(g) 4.279 +0.027 -0.034 cm/s2 |
Fe/H 0.036 +0.059 -0.058 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | ALERT - TTVs | ||||
| Minimum aperture | 5.0" | ||||
| Total Observations (Recent) | 8 (2) | ||||
| O-C | 80.61 ± 1.19 minutes | ||||
| ExoClock Observations (Recent) | 4 (2) | ||||
| Space Observations (Recent) | 4 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.07015 ± 0.00019 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HD332231b (ALERT - TTVs) 2025-10-07 | Matthieu Bachschmidt Gonachon | Celestron C11 SBIG ST8XME / R / 30.0 | 96.77 ± 2.74 | |
| HD332231b (ALERT - TTVs) 2025-10-07 | Anaël Wünsche Observatoire des Baronnies Provençales | Astelco2 ZWO ASI6200 / R / 30.0 | 91.01 ± 1.58 | |
| HD332231b (ALERT - TTVs) 2024-09-09 | Claudio Lopresti Claudio Lopresti | Mak-Newton CCD Sbig ST10xme / I / 180.0 | 42.7 ± 2.45 | |
| HD332231b (ALERT - TTVs) 2023-08-13 | Paolo Arcangelo Matassa P:M.P.H.R. Deep Sky (K81) | Ritchey Chretien 40cm-F5.3 CCD ICX453AQ / R / 60.0 | -5.04 ± 4.61 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| HD332231b (ALERT - TTVs) 2022-08-23 | TESS | -9.68 ± 0.46 | ||
| HD332231b (ALERT - TTVs) 2021-08-14 | TESS | 10.2 ± 0.52 | ||
| HD332231b (ALERT - TTVs) 2021-07-26 | TESS | 10.43 ± 0.56 | ||
| HD332231b (ALERT - TTVs) 2019-09-03 | TESS | -7.08 ± 0.52 | ||