| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
LP 791-18 DR2 3562427951852172288 J11024596-1624222 |
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| RA | 11:02:45.9543 | DEC | -16:24:22.285 | ||
| Parallax 37.718 mas |
P.M. RA -221.078 mas/y |
P.M. DEC -58.999 mas/y |
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| MagV* 17.288 |
MagR* 15.406 |
MagI* 13.363 |
MagJ 11.559 |
MagH 10.993 |
MagK 10.644 |
| MagG 15.072 |
MagGBP 17.238 |
MagGRP 13.695 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459115.35992 ± 0.00027 BJDTDB |
|||||
| Period 4.9899163 ± 2.3e-06 days |
|||||
| Transit Parameters | |||||
| Crossfield et al. 2019 | |||||
| Rp/Rs 0.1238 ± 0.0022 |
a/Rs 34.5 +2.0 -3.7 |
i 89.55 +0.32 -0.5 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 21.45 mmag |
Duration* 1.21 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Crossfield et al. 2019 | |||||
| Teff 2960.0 +55.0 -55.0 K |
Log(g) 5.12 +0.09 -0.09 cm/s2 |
Fe/H -0.09 +0.19 -0.19 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | HIGH | ||||
| Minimum aperture | 19.94" | ||||
| Total Observations (Recent) | 17 (0) | ||||
| O-C | -3.61 ± 2.66 minutes | ||||
| ExoClock Observations (Recent) | 3 (0) | ||||
| Space Observations (Recent) | 13 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.1238 ± 0.0028 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| LP791-18c (HIGH) 2024-05-02 | Karolina Prucnal DeepSkyChile - ROTUZ | PlaneWave CDK 20 QHY268M pro / Lum / 180.0 | -5.94 ± 3.31 | |
| LP791-18c (HIGH) 2024-04-17 | Karolina Prucnal DeepSkyChile - ROTUZ | PlaneWave CDK 20 QHY268M pro / Lum / 240.0 | 0.61 ± 4.46 | |
| LP791-18c (HIGH) 2023-01-19 | Gemma Domènech Teide Observatory | IAC80 CAMELOT2 / I / 400.0 | 1.44 ± 0.84 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| LP791-18c (HIGH) 2023-04-03 | TESS | -0.34 ± 2.3 | ||
| LP791-18c (HIGH) 2023-03-29 | TESS | -3.77 ± 2.45 | ||
| LP791-18c (HIGH) 2023-03-25 | TESS | 1.29 ± 2.59 | ||
| LP791-18c (HIGH) 2023-03-20 | TESS | -2.0 ± 2.59 | ||
| LP791-18c (HIGH) 2023-03-15 | TESS | 4.07 ± 3.74 | ||
| LP791-18c (HIGH) 2021-03-31 | TESS | -2.94 ± 1.87 | ||
| LP791-18c (HIGH) 2021-03-26 | TESS | -2.91 ± 2.16 | ||
| LP791-18c (HIGH) 2021-03-16 | TESS | -2.72 ± 1.58 | ||
| LP791-18c (HIGH) 2021-03-11 | TESS | -1.69 ± 1.73 | ||
| LP791-18c (HIGH) 2019-03-23 | TESS | 2.12 ± 2.45 | ||
| LP791-18c (HIGH) 2019-03-18 | TESS | 0.27 ± 1.73 | ||
| LP791-18c (HIGH) 2019-03-08 | TESS | -1.41 ± 1.87 | ||
| LP791-18c (HIGH) 2019-03-04 | TESS | -0.02 ± 1.28 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2019-06-16 | Crossfield et al. 2019 | 0.53 ± 0.59 | ||