| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HATS-55 DR2 5592019557950033536 J07370802-3245195 |
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| RA | 07:37:08.0193 | DEC | -32:45:19.515 | ||
| Parallax 1.611 mas |
P.M. RA -6.283 mas/y |
P.M. DEC 0.531 mas/y |
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| MagV* 13.489 |
MagR* 13.13 |
MagI* 12.784 |
MagJ 12.338 |
MagH 12.048 |
MagK 12.02 |
| MagG 13.35 |
MagGBP 13.682 |
MagGRP 12.865 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2458745.85939 ± 0.00056 BJDTDB |
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| Period 4.2041903 ± 1.7e-06 days |
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| Transit Parameters | |||||
| Patel et al. 2022 | |||||
| Rp/Rs 0.1237 ± 0.0073 |
a/Rs 12.4 +1.6 -2.1 |
i 88.0 +75.0 72.0 deg |
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| e - |
ω - deg |
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| DepthR* 19.29 mmag |
Duration* 2.69 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 | |||||
| Espinoza et al. 2019 | |||||
| Teff 6214.0 +36.0 -36.0 K |
Log(g) 4.41 +0.01 -0.01 cm/s2 |
Fe/H 0.108 +0.046 -0.03 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 8.27" | ||||
| Total Observations (Recent) | 16 (1) | ||||
| O-C | 3.44 ± 0.72 minutes | ||||
| ExoClock Observations (Recent) | 6 (1) | ||||
| Space Observations (Recent) | 10 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.1301 ± 0.0025 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HATS-55b (MEDIUM) 2025-02-11 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | 4.65 ± 1.12 | |
| HATS-55b (MEDIUM) 2024-11-02 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 180.0 | 8.68 ± 1.87 | |
| HATS-55b (MEDIUM) 2024-02-28 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / Lum / 120.0 | -1.94 ± 2.02 | |
| HATS-55b (MEDIUM) 2023-12-31 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 180.0 | 6.07 ± 1.73 | |
| HATS-55b (MEDIUM) 2023-12-10 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 180.0 | -3.64 ± 1.87 | |
| HATS-55b (MEDIUM) 2023-11-19 | Anaël Wünsche El Sauce Observatory | CDK Planewave Chili Moravian G4 16k / Lum / 120.0 | -1.55 ± 1.44 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| HATS-55b (MEDIUM) 2023-02-10 | TESS | 0.53 ± 3.74 | ||
| HATS-55b (MEDIUM) 2023-02-06 | TESS | 5.85 ± 2.88 | ||
| HATS-55b (MEDIUM) 2023-02-02 | TESS | -2.52 ± 2.88 | ||
| HATS-55b (MEDIUM) 2023-01-28 | TESS | 3.37 ± 6.34 | ||
| HATS-55b (MEDIUM) 2023-01-20 | TESS | -1.26 ± 2.59 | ||
| HATS-55b (MEDIUM) 2021-02-04 | TESS | -0.9 ± 2.59 | ||
| HATS-55b (MEDIUM) 2021-01-31 | TESS | -5.24 ± 5.18 | ||
| HATS-55b (MEDIUM) 2021-01-23 | TESS | -9.01 ± 3.74 | ||
| HATS-55b (MEDIUM) 2021-01-19 | TESS | 1.35 ± 3.89 | ||
| HATS-55b (MEDIUM) 2021-01-14 | TESS | -4.86 ± 4.75 | ||
Literature Mid-times |
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| Planet Observation Date |
Reference | O-C minutes |
||
| 2016-01-25 | Espinoza et al. 2019 | 0.21 ± 0.73 | ||