| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
TRAPPIST-1 DR2 2635476908753563008 J23062928-0502285 |
||||
| RA | 23:06:29.3684 | DEC | -05:02:29.031 | ||
| Parallax 80.451 mas |
P.M. RA 930.879 mas/y |
P.M. DEC -479.403 mas/y |
|||
| MagV 18.798 |
MagR 16.466 |
MagI 14.024 |
MagJ 11.354 |
MagH 10.718 |
MagK 10.296 |
| MagG 15.645 |
MagGBP 18.998 |
MagGRP 14.097 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Not verified 
|
|||||
|---|---|---|---|---|---|
| Gillon et al. 2017 | |||||
| Mid-time 2457282.80728 ± 0.00019 BJDTDB |
|||||
| Period 2.4218233 ± 1.7e-06 days |
|||||
| Transit Parameters | |||||
| Gillon et al. 2017 | |||||
| Rp/Rs 0.0829 ± 0.0006 |
a/Rs 28.08 +0.22 -0.42 |
i 89.67 +0.17 -0.17 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 10.28 mmag |
Duration* 0.71 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Gillon et al. 2016 | |||||
| Teff 2550.0 +55.0 -55.0 K |
Log(g) 5.18 +0.05 -0.05 cm/s2 |
Fe/H 0.04 +0.08 -0.08 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | ALERT | ||||
| Minimum aperture | 59.03" | ||||
| Total Observations (Recent) | 1 (1) | ||||
| O-C | -32.42 ± 3.17 minutes | ||||
| ExoClock Observations (Recent) | 1 (1) | ||||
| Space Observations (Recent) | 0 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | - | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| TRAPPIST-1c (ALERT) 2025-08-15 | Dim Stouraitis Galilaios | SCT SXVF-H9 Starlight-Xpress / I / 350.0 | -32.42 ± 3.17 | |