| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HD 297549 DR2 5313031504751276032 J09362869-5027478 |
||||
| RA | 09:36:28.6865 | DEC | -50:27:47.793 | ||
| Parallax 7.023 mas |
P.M. RA -24.817 mas/y |
P.M. DEC 42.417 mas/y |
|||
| MagV 9.82 |
MagR* 9.454 |
MagI* 9.183 |
MagJ 8.722 |
MagH 8.47 |
MagK 8.429 |
| MagG 9.661 |
MagGBP 9.968 |
MagGRP 9.229 |
|||
| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459334.03639 ± 0.00014 BJDTDB |
|||||
| Period 11.2365969 ± 2.7e-06 days |
|||||
| Transit Parameters | |||||
| Jordán et al. 2020 | |||||
| Rp/Rs 0.0942 ± 0.001 |
a/Rs** 21.5 +0.17 -0.17 |
i 87.63 +0.11 -0.1 deg |
|||
| e 0.435 +0.024 -0.024 |
ω 70.47 +3.61 -3.61 deg |
||||
| DepthR* 10.91 mmag |
Duration* 2.47 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Jordán et al. 2020 | |||||
| Teff 6295.0 +77.0 -77.0 K |
Log(g) 4.29 +0.03 -0.03 cm/s2 |
Fe/H 0.0 +0.05 -0.05 dex |
|||
| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 5.0" | ||||
| Total Observations (Recent) | 18 (1) | ||||
| O-C | 0.89 ± 0.86 minutes | ||||
| ExoClock Observations (Recent) | 6 (1) | ||||
| Space Observations (Recent) | 12 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.08966 ± 0.00025 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| TOI-677b (MEDIUM) 2025-03-04 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 25.0 | 1.16 ± 1.17 | |
| TOI-677b (MEDIUM) 2024-12-04 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 45.0 | -0.76 ± 1.87 | |
| TOI-677b (MEDIUM) 2024-02-27 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 30.0 | 1.72 ± 1.73 | |
| TOI-677b (MEDIUM) 2022-06-08 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 60.0 | 0.03 ± 1.01 | |
| TOI-677b (MEDIUM) 2022-04-24 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 60.0 | -1.43 ± 1.01 | |
| TOI-677b (MEDIUM) 2022-01-24 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 0.64 ± 0.91 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| TOI-677b (MEDIUM) 2023-03-27 | TESS | 0.91 ± 0.45 | ||
| TOI-677b (MEDIUM) 2023-03-15 | TESS | 0.36 ± 0.49 | ||
| TOI-677b (MEDIUM) 2023-03-04 | TESS | -0.9 ± 0.42 | ||
| TOI-677b (MEDIUM) 2023-02-21 | TESS | -1.08 ± 0.43 | ||
| TOI-677b (MEDIUM) 2021-03-26 | TESS | 0.58 ± 0.45 | ||
| TOI-677b (MEDIUM) 2021-03-15 | TESS | 0.9 ± 0.48 | ||
| TOI-677b (MEDIUM) 2021-03-04 | TESS | 0.51 ± 0.49 | ||
| TOI-677b (MEDIUM) 2021-02-21 | TESS | 0.3 ± 0.53 | ||
| TOI-677b (MEDIUM) 2019-04-18 | TESS | 0.77 ± 0.45 | ||
| TOI-677b (MEDIUM) 2019-04-07 | TESS | -0.01 ± 0.49 | ||
| TOI-677b (MEDIUM) 2019-03-16 | TESS | -1.13 ± 0.45 | ||
| TOI-677b (MEDIUM) 2019-03-04 | TESS | -0.59 ± 0.48 | ||