| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HATS-1 DR2 3540018633568783488 J11420608-2321174 |
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| RA | 11:42:06.0805 | DEC | -23:21:17.428 | ||
| Parallax 3.493 mas |
P.M. RA -20.357 mas/y |
P.M. DEC -0.924 mas/y |
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| MagV 12.059 |
MagR 12.08 |
MagI 11.38 |
MagJ 10.924 |
MagH 10.634 |
MagK 10.58 |
| MagG 11.936 |
MagGBP 12.266 |
MagGRP 11.458 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459201.26601 ± 0.00015 BJDTDB |
|||||
| Period 3.44645571 ± 5.6e-07 days |
|||||
| Transit Parameters | |||||
| Penev et al. 2013 | |||||
| Rp/Rs 0.1288 ± 0.002 |
a/Rs 9.2 +0.8 -0.8 |
i 85.6 +0.6 -1.4 deg |
|||
| e 0.12 +0.09 -0.09 |
ω 18.0 +30.0 -18.0 deg |
||||
| DepthR* 19.17 mmag |
Duration* 2.5 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Penev et al. 2013 | |||||
| Teff 5870.0 +100.0 -100.0 K |
Log(g) 4.4 +0.11 -0.11 cm/s2 |
Fe/H -0.06 +0.12 -0.12 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 5.85" | ||||
| Total Observations (Recent) | 34 (2) | ||||
| O-C | -0.55 ± 0.44 minutes | ||||
| ExoClock Observations (Recent) | 12 (2) | ||||
| Space Observations (Recent) | 19 (0) | ||||
| ETD Observations (Recent) | 1 (0) | ||||
| Literature Mid-times (Recent) | 2 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.12585 ± 0.00044 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HATS-1b (MEDIUM) 2025-05-29 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / V / 60.0 | 0.61 ± 0.6 | |
| HATS-1b (MEDIUM) 2025-03-21 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | -2.02 ± 0.66 | |
| HATS-1b (MEDIUM) 2025-02-04 | Darryl Madison Ajijic Observatory | Celestron CPC 800 Edge HD ZWO2400MC / Clear / 60.0 | 0.99 ± 3.02 | |
| HATS-1b (MEDIUM) 2024-01-15 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | -0.69 ± 0.72 | |
| HATS-1b (MEDIUM) 2023-05-19 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / Lum / 60.0 | -0.82 ± 1.58 | |
| HATS-1b (MEDIUM) 2023-03-04 | Jean-Pascal Vignes Deep Sky Chile | Planewave CDK400 QHYCCD 600M / Lum / 60.0 | -2.95 ± 0.99 | |
| HATS-1b (MEDIUM) 2022-04-28 | Anaël Wünsche El Sauce Observatory | CDK Planewave Chili Moravian G4 16k / Lum / 60.0 | 0.24 ± 1.15 | |
| HATS-1b (MEDIUM) 2022-04-21 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / U / 120.0 | -2.19 ± 0.86 | |
| HATS-1b (MEDIUM) 2022-02-11 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | 0.28 ± 0.58 | |
| HATS-1b (MEDIUM) 2021-02-21 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 0.48 ± 1.15 | |
| HATS-1b (MEDIUM) 2020-05-11 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / V / 120.0 | 0.8 ± 1.44 | |
| HATS-1b (MEDIUM) 2020-04-10 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Clear / 120.0 | -1.79 ± 0.72 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| HATS-1b (MEDIUM) 2023-04-04 | TESS | -0.43 ± 0.91 | ||
| HATS-1b (MEDIUM) 2023-03-31 | TESS | -0.61 ± 0.85 | ||
| HATS-1b (MEDIUM) 2023-03-28 | TESS | 0.29 ± 0.76 | ||
| HATS-1b (MEDIUM) 2023-03-24 | TESS | 0.58 ± 0.79 | ||
| HATS-1b (MEDIUM) 2023-03-21 | TESS | 0.07 ± 0.92 | ||
| HATS-1b (MEDIUM) 2023-03-18 | TESS | 0.23 ± 0.89 | ||
| HATS-1b (MEDIUM) 2023-03-14 | TESS | 0.02 ± 0.88 | ||
| HATS-1b (MEDIUM) 2021-03-31 | TESS | 1.55 ± 0.85 | ||
| HATS-1b (MEDIUM) 2021-03-27 | TESS | -0.02 ± 0.88 | ||
| HATS-1b (MEDIUM) 2021-03-24 | TESS | -1.17 ± 0.91 | ||
| HATS-1b (MEDIUM) 2021-03-17 | TESS | -0.17 ± 0.79 | ||
| HATS-1b (MEDIUM) 2021-03-13 | TESS | -1.01 ± 0.75 | ||
| HATS-1b (MEDIUM) 2021-03-10 | TESS | 0.49 ± 0.75 | ||
| HATS-1b (MEDIUM) 2019-04-21 | TESS | -0.4 ± 0.81 | ||
| HATS-1b (MEDIUM) 2019-04-17 | TESS | 2.16 ± 0.72 | ||
| HATS-1b (MEDIUM) 2019-04-14 | TESS | 1.16 ± 0.76 | ||
| HATS-1b (MEDIUM) 2019-04-07 | TESS | 0.9 ± 0.79 | ||
| HATS-1b (MEDIUM) 2019-04-03 | TESS | -0.46 ± 0.81 | ||
| HATS-1b (MEDIUM) 2019-03-31 | TESS | 0.88 ± 0.89 | ||
ETD Observations |
||||
| Planet Observation Date |
Observer(s) | ETD link | O-C minutes |
|
| HATS-1b (MEDIUM) 2013-04-06 | Phil Evans | 1365277493 | -2.23 ± 1.15 | |
Literature Mid-times |
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| Planet Observation Date |
Reference | O-C minutes |
||
| 2021-02-21 | Edwards et al. 2021 | 4.8 ± 1.44 | ||
| 2010-02-13 | Penev et al. 2013 | -0.59 ± 1.02 | ||