| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
G 268-38 DR2 2371032916186181760 J00445930-1516166 |
||||
| RA | 00:44:59.3314 | DEC | -15:16:17.543 | ||
| Parallax 66.7 mas |
P.M. RA 317.585 mas/y |
P.M. DEC -596.617 mas/y |
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| MagV 14.15 |
MagR 13.801 |
MagI 11.19 |
MagJ 9.612 |
MagH 9.092 |
MagK 8.821 |
| MagG 12.671 |
MagGBP 14.435 |
MagGRP 11.399 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2458103.084198 ± 7.4e-05 BJDTDB |
|||||
| Period 24.737216 ± 1.2e-05 days |
|||||
| Transit Parameters | |||||
| Ment et al. 2019 | |||||
| Rp/Rs 0.0739 ± 8e-05 |
a/Rs 95.3 +1.1 -1.1 |
i 89.89 +0.05 -0.03 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 7.47 mmag |
Duration* 2.1 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Dittmann et al. 2017 | |||||
| Teff 3131.0 +100.0 -100.0 K |
Log(g) 5.04 +0.07 -0.07 cm/s2 |
Fe/H -0.24 +0.14 -0.14 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | HIGH | ||||
| Minimum aperture | 19.59" | ||||
| Total Observations (Recent) | 10 (1) | ||||
| O-C | 6.55 ± 1.44 minutes | ||||
| ExoClock Observations (Recent) | 5 (1) | ||||
| Space Observations (Recent) | 2 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 3 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.0721 ± 0.0022 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| LHS1140b (HIGH) 2025-10-24 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 180.0 | 6.55 ± 1.44 | |
| LHS1140b (HIGH) 2023-10-12 | Mercedes Correa Teide Observatory | IAC80 Camelot2 / I / 80.0 | 2.49 ± 3.17 | |
| LHS1140b (HIGH) 2023-10-12 | Kevin Hills Tacande | ASA 0.5m f/3.6 astrograph. QHY 600M with IMX 455 chip / R / 120.0 | 0.47 ± 3.02 | |
| LHS1140b (HIGH) 2023-10-12 | David Arnot OSO PIRATE | PlaneWave Instruments CDK24 24 inch (610 mm) f/6.5 Corrected Dall-Kirkham Astrograph FLI ProLine KAF-16803 / R / 120.0 | -2.7 ± 3.17 | |
| LHS1140b (HIGH) 2022-10-06 | David Arnot OSO PIRATE | PlaneWave Instruments CDK24 24 inch (610 mm) f/6.5 Corrected Dall-Kirkham Astrograph FLI ProLine KAF-16803 / R / 120.0 | 2.11 ± 5.62 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| LHS1140b (HIGH) 2020-09-24 | TESS | -0.22 ± 1.87 | ||
| LHS1140b (HIGH) 2018-10-08 | TESS | -2.15 ± 2.16 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2018-10-08 | Edwards et al. 2021 | 1.14 ± 1.88 | ||
| 2017-12-15 | Edwards et al. 2021 | 0.0 ± 0.11 | ||
| 2014-09-15 | Dittmann et al. 2017 | 3.84 ± 7.78 | ||