| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HD 2685 DR2 4684205720883329920 J00291894-7618146 |
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| RA | 00:29:18.9527 | DEC | -76:18:14.623 | ||
| Parallax 5.051 mas |
P.M. RA -2.97 mas/y |
P.M. DEC 6.961 mas/y |
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| MagV 9.59 |
MagR* 9.348 |
MagI* 9.094 |
MagJ 8.825 |
MagH 8.651 |
MagK 8.595 |
| MagG 9.52 |
MagGBP 9.752 |
MagGRP 9.18 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2022 | |||||
| Mid-time 2458726.093504 ± 8.9e-05 BJDTDB |
|||||
| Period 4.1269052 ± 1e-06 days |
|||||
| Transit Parameters | |||||
| Jones et al. 2019 | |||||
| Rp/Rs 0.09467 ± 0.00033 |
a/Rs 7.697 +0.069 -0.054 |
i 89.25 +0.41 -0.44 deg |
|||
| e 0.091 +0.039 -0.047 |
ω 184.36 +6.27 -6.56 deg |
||||
| DepthR* 11.66 mmag |
Duration* 4.49 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Jones et al. 2019 | |||||
| Teff 6801.0 +76.0 -76.0 K |
Log(g) 4.21 +0.03 -0.03 cm/s2 |
Fe/H 0.02 +0.06 -0.06 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 5.0" | ||||
| Total Observations (Recent) | 20 (1) | ||||
| O-C | -0.1 ± 1.36 minutes | ||||
| ExoClock Observations (Recent) | 3 (1) | ||||
| Space Observations (Recent) | 17 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.09334 ± 0.00012 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HD2685b (MEDIUM) 2023-11-25 | Francois Regembal HRT Deep Sky Chile | Astrosib RC360 Moravian C3 PRO 61000 / Lum / 75.0 | 1.94 ± 1.87 | |
| HD2685b (MEDIUM) 2022-11-02 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 60.0 | -1.39 ± 2.45 | |
| HD2685b (MEDIUM) 2022-10-29 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 20.0 | -4.12 ± 3.31 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| HD2685b (MEDIUM) 2020-08-23 | TESS | -0.67 ± 0.42 | ||
| HD2685b (MEDIUM) 2020-08-19 | TESS | -1.38 ± 0.43 | ||
| HD2685b (MEDIUM) 2020-08-15 | TESS | 0.57 ± 0.42 | ||
| HD2685b (MEDIUM) 2020-08-07 | TESS | -0.22 ± 0.43 | ||
| HD2685b (MEDIUM) 2020-08-02 | TESS | 0.2 ± 0.42 | ||
| HD2685b (MEDIUM) 2020-07-29 | TESS | 0.19 ± 0.52 | ||
| HD2685b (MEDIUM) 2020-07-25 | TESS | 0.53 ± 0.43 | ||
| HD2685b (MEDIUM) 2020-07-21 | TESS | -0.05 ± 0.45 | ||
| HD2685b (MEDIUM) 2020-07-13 | TESS | 0.76 ± 0.45 | ||
| HD2685b (MEDIUM) 2020-07-09 | TESS | 0.25 ± 0.42 | ||
| HD2685b (MEDIUM) 2018-08-20 | TESS | 0.07 ± 0.39 | ||
| HD2685b (MEDIUM) 2018-08-15 | TESS | -0.87 ± 0.39 | ||
| HD2685b (MEDIUM) 2018-08-11 | TESS | 0.49 ± 0.36 | ||
| HD2685b (MEDIUM) 2018-08-07 | TESS | 0.17 ± 0.39 | ||
| HD2685b (MEDIUM) 2018-08-03 | TESS | 0.01 ± 0.4 | ||
| HD2685b (MEDIUM) 2018-07-30 | TESS | 0.02 ± 0.43 | ||
| HD2685b (MEDIUM) 2018-07-26 | TESS | 0.03 ± 0.39 | ||