| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
TOI-1842 DR2 3719927426253118848 J13275106+0901504 |
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| RA | 13:27:51.0619 | DEC | +09:01:50.435 | ||
| Parallax 4.447 mas |
P.M. RA -23.976 mas/y |
P.M. DEC -7.518 mas/y |
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| MagV 9.81 |
MagR* 9.452 |
MagI* 9.167 |
MagJ 8.747 |
MagH 8.511 |
MagK 8.446 |
| MagG 9.66 |
MagGBP 9.969 |
MagGRP 9.223 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
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|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459469.47592 ± 0.00085 BJDTDB |
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| Period 9.573935 ± 2.3e-05 days |
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| Transit Parameters | |||||
| Wittenmyer et al. 2022 | |||||
| Rp/Rs 0.052 ± 0.003 |
a/Rs 16.2 +1.6 -2.9 |
i 88.4 +0.9 -1.5 deg |
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| e - |
ω - deg |
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| DepthR* 3.38 mmag |
Duration* 4.29 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 | |||||
| Wittenmyer et al. 2022 | |||||
| Teff 6230.0 +50.0 -50.0 K |
Log(g) 4.1 +0.1 -0.1 cm/s2 |
Fe/H 0.22 +0.05 -0.05 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 11.09" | ||||
| Total Observations (Recent) | 13 (3) | ||||
| O-C | -1.06 ± 2.02 minutes | ||||
| ExoClock Observations (Recent) | 9 (3) | ||||
| Space Observations (Recent) | 4 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.05248 ± 0.00052 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| TOI-1842b (MEDIUM) 2025-04-06 | Adrian Jones Private Observatory (I64) | Meade ACF 30cm QSI 583 / R / 107.0 | 9.24 ± 6.34 | |
| TOI-1842b (MEDIUM) 2025-04-06 | Lionel Rousselot Private observatory Vierzon | Newton 250/740 ZWO 533 monochrome / rpr / 30.0 | 6.51 ± 8.06 | |
| TOI-1842b (MEDIUM) 2025-04-06 | Matthieu Bachschmidt Gonachon | Celestron C11 SBIG ST8XME / AstrodonExoPlanet-BB / 30.0 | -21.57 ± 4.46 | |
| TOI-1842b (MEDIUM) 2024-05-05 | Giovanni Calapai Home Astronomical Observatory | Celestron 11 Schmidt-Cassegrain Atik 314L+ / Clear / 90.0 | 5.82 ± 6.77 | |
| TOI-1842b (MEDIUM) 2024-04-16 | Alexey Garmash Lyceum 130 | EdgeHD C11 ASI2600MM pro / R / 60.0 | 2.76 ± 2.74 | |
| TOI-1842b (MEDIUM) 2023-05-08 | Anaël Wünsche El Sauce Observatory | CDK Planewave Chili Moravian G4 16k / R / 60.0 | 7.88 ± 3.74 | |
| TOI-1842b (MEDIUM) 2023-04-18 | Fran Campos Puig d'Agulles Observtory | RC14" on EQ8 German mount SBIG ST-8XME / R / 90.0 | 13.31 ± 3.74 | |
| TOI-1842b (MEDIUM) 2022-02-12 | MUSCAT Team Teide Observatory | Telescope Carlos Sanchez MuSCAT2 - PIXIS: 1024B eXcelon - CH4 z / zpr / 8.0 | -0.55 ± 1.14 | |
| TOI-1842b (MEDIUM) 2022-02-12 | MUSCAT Team Teide Observatory | Telescope Carlos Sanchez MuSCAT2 - PIXIS: 1024B eXcelon - CH1 g / gpr / 8.0 | -5.01 ± 1.73 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| TOI-1842b (MEDIUM) 2022-04-20 | TESS | 1.26 ± 1.87 | ||
| TOI-1842b (MEDIUM) 2022-04-01 | TESS | -2.38 ± 1.73 | ||
| TOI-1842b (MEDIUM) 2020-04-12 | TESS | 1.34 ± 1.34 | ||
| TOI-1842b (MEDIUM) 2020-03-24 | TESS | 1.35 ± 2.3 | ||