| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HAT-P-44 DR2 1506159170017461888 J14123457+4700528 |
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| RA | 14:12:34.5714 | DEC | +47:00:53.045 | ||
| Parallax 2.846 mas |
P.M. RA -29.681 mas/y |
P.M. DEC 11.079 mas/y |
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| MagV 13.21 |
MagR 12.83 |
MagI 12.31 |
MagJ 11.729 |
MagH 11.36 |
MagK 11.275 |
| MagG 12.973 |
MagGBP 13.412 |
MagGRP 12.397 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2022 | |||||
| Mid-time 2457679.78645 ± 0.00028 BJDTDB |
|||||
| Period 4.30119043 ± 8.2e-07 days |
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| Transit Parameters | |||||
| Hartman et al. 2014 | |||||
| Rp/Rs 0.1343 ± 0.001 |
a/Rs 11.5 +0.5 -0.8 |
i 89.1 +0.4 -0.4 deg |
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| e - |
ω - deg |
||||
| DepthR* 24.45 mmag |
Duration* 3.21 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 | |||||
| Hartman et al. 2014 | |||||
| Teff 5295.0 +100.0 -100.0 K |
Log(g) 4.46 +0.06 -0.06 cm/s2 |
Fe/H 0.33 +0.1 -0.1 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | LOW | ||||
| Minimum aperture | 7.45" | ||||
| Total Observations (Recent) | 24 (5) | ||||
| O-C | 0.54 ± 0.44 minutes | ||||
| ExoClock Observations (Recent) | 18 (5) | ||||
| Space Observations (Recent) | 5 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.1345 ± 0.0012 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HAT-P-44b (LOW) 2023-05-11 | jean paul vergne CH9-gapra | Ritchey Chretien zwo 294mm pro / Lum / 180.0 | 3.43 ± 2.74 | |
| HAT-P-44b (LOW) 2023-04-15 | Bryan Martin Tiger Butte Observatory Remote | AG Optical IDK ZWO ASI 294 / Lum / 180.0 | -0.13 ± 1.38 | |
| HAT-P-44b (LOW) 2022-05-31 | Jean-François Coliac OABAC | N200 f4 ASI 183mm pro / Clear / 120.0 | 5.21 ± 2.74 | |
| HAT-P-44b (LOW) 2022-05-31 | Paolo Arcangelo Matassa P:M.P.H.R. Deep Sky (K81) | Ritchey Chretien 40cm-F5.3 CCD ICX453AQ / Lum / 90.0 | 2.18 ± 2.16 | |
| HAT-P-44b (LOW) 2022-05-31 | Lorenzo Betti Osservatorio Polifunzionale del Chianti | RC-80cm Moravian G4 - KAF 09000 / V / 120.0 | 0.89 ± 0.72 | |
| HAT-P-44b (LOW) 2022-04-18 | Manfred Raetz privat observatory Herges-Hallenberg | SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / Clear / 120.0 | 3.48 ± 1.15 | |
| HAT-P-44b (LOW) 2022-03-24 | Simon Dawes William James II Observatory | Skywatcher MN190 2 ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 120.0 | 2.54 ± 4.32 | |
| HAT-P-44b (LOW) 2022-03-06 | Yves Jongen Rasteau Observatory | Plane Wave CDK 17" FLI Kepler CMOS 4040 / Lum / 180.0 | -2.41 ± 0.86 | |
| HAT-P-44b (LOW) 2021-04-14 | Giorgio Baj M57 | Ritchey-Chretien Sbig STT1603 ME / Clear / 120.0 | -2.45 ± 1.58 | |
| HAT-P-44b (LOW) 2021-03-14 | Yves Jongen Rasteau Observatory | Plane Wave CDK 17" SBIG STXL 11002 / Lum / 120.0 | -3.99 ± 1.87 | |
| HAT-P-44b (LOW) 2021-03-02 | Manfred Raetz privat observatory Herges-Hallenberg | SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / Clear / 120.0 | 4.03 ± 1.01 | |
| HAT-P-44b (LOW) 2021-03-02 | Yves Jongen Rasteau Observatory | Plane Wave CDK 17" SBIG STXL 11002 / Lum / 120.0 | 2.74 ± 1.44 | |
| HAT-P-44b (LOW) 2020-04-22 | Manfred Raetz privat observatory Herges-Hallenberg | SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / Clear / 120.0 | 5.19 ± 1.3 | |
| HAT-P-44b (LOW) 2019-05-01 | Anaël Wünsche Observatoire des Baronnies Provençales | CDK Planewave SBIG STL11K / Clear / 120.0 | 0.15 ± 1.3 | |
| HAT-P-44b (LOW) 2019-05-01 | Anaël Wünsche Observatoire des Baronnies Provençales | Astelco FLIPL230 / Clear / 120.0 | -0.82 ± 0.36 | |
| HAT-P-44b (LOW) 2019-03-31 | Anaël Wünsche Observatoire des Baronnies Provençales | CDK Planewave SBIG STL11K / Clear / 120.0 | -0.66 ± 1.01 | |
| HAT-P-44b (LOW) 2016-06-06 | Alessandro Marchini Astronomical Observatory University of Siena | Mak-Cas 0.3m f/5.6 Sbig STL-6303 / R / 300.0 | 1.08 ± 1.87 | |
| HAT-P-44b (LOW) 2016-03-12 | Anaël Wünsche Observatoire des Baronnies Provençales | CDK Planewave SBIG STL11K / Clear / 120.0 | 2.68 ± 1.58 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| HAT-P-44b (LOW) 2020-04-13 | TESS | 0.91 ± 1.15 | ||
| HAT-P-44b (LOW) 2020-04-09 | TESS | 0.67 ± 1.14 | ||
| HAT-P-44b (LOW) 2020-04-04 | TESS | 1.68 ± 1.58 | ||
| HAT-P-44b (LOW) 2020-03-31 | TESS | -2.93 ± 1.31 | ||
| HAT-P-44b (LOW) 2020-03-22 | TESS | -2.02 ± 1.31 | ||
Literature Mid-times |
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| Planet Observation Date |
Reference | O-C minutes |
||
| 2011-05-15 | Hartman et al. 2014 | 0.08 ± 0.35 | ||