| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HAT-P-38 DR2 324889227693298560 J02213197+3214461 |
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| RA | 02:21:31.9802 | DEC | +32:14:46.090 | ||
| Parallax 3.89 mas |
P.M. RA 47.771 mas/y |
P.M. DEC -21.428 mas/y |
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| MagV 12.51 |
MagR 12.36 |
MagI* 11.585 |
MagJ 10.989 |
MagH 10.593 |
MagK 10.501 |
| MagG 12.302 |
MagGBP 12.765 |
MagGRP 11.699 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2022 | |||||
| Mid-time 2457570.76143 ± 0.00011 BJDTDB |
|||||
| Period 4.64032787 ± 8.8e-07 days |
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| Transit Parameters | |||||
| Sato et al. 2012 | |||||
| Rp/Rs 0.0918 ± 0.0016 |
a/Rs 12.2 +1.0 -1.0 |
i 88.3 +0.7 -0.7 deg |
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| e 0.07 +0.05 -0.05 |
ω 240.0 +104.0 -104.0 deg |
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| DepthR* 10.97 mmag |
Duration* 3.16 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 | |||||
| Sato et al. 2012 | |||||
| Teff 5330.0 +100.0 -100.0 K |
Log(g) 4.46 +0.1 -0.1 cm/s2 |
Fe/H 0.06 +0.1 -0.1 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 7.4" | ||||
| Total Observations (Recent) | 24 (5) | ||||
| O-C | 0.09 ± 0.72 minutes | ||||
| ExoClock Observations (Recent) | 18 (5) | ||||
| Space Observations (Recent) | 0 (0) | ||||
| ETD Observations (Recent) | 2 (0) | ||||
| Literature Mid-times (Recent) | 4 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | - | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HAT-P-38b (MEDIUM) 2024-01-26 | Adrian Jones Private Observatory (I64) | Meade ACF 30cm QSI 583 / R / 200.0 | 5.7 ± 2.02 | |
| HAT-P-38b (MEDIUM) 2024-01-26 | Martin Crow Burnham Observatory | Celestron C9.25 SX694 mono / R / 200.0 | -2.94 ± 3.6 | |
| HAT-P-38b (MEDIUM) 2023-09-05 | Simon Dawes William James II | Celestron Edge11 HD Risingcam Monochrome SONY imx571 / Lum / 300.0 | 0.47 ± 3.17 | |
| HAT-P-38b (MEDIUM) 2023-09-05 | David Wright Yorick (private observatory) | 10" Ritchey-Chretien QSI 683WSG-8 / R / 240.0 | -0.11 ± 2.74 | |
| HAT-P-38b (MEDIUM) 2023-09-05 | Pieter Vuylsteke TheGardenToTheSkyFacility | TS ONTC 25cm f4.7 QHY 268M / rpr / 150.0 | -1.26 ± 2.45 | |
| HAT-P-38b (MEDIUM) 2022-12-09 | Kevin Johnson Holbrook Observatory | Meade LX10 EMC Atik 383L+ / R / 240.0 | -2.68 ± 4.61 | |
| HAT-P-38b (MEDIUM) 2022-11-12 | Manfred Raetz privat observatory Herges-Hallenberg | SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0 | 1.74 ± 7.63 | |
| HAT-P-38b (MEDIUM) 2022-10-29 | Pierre Gamache Observatoire de la Licorne | RC ASI6200MM / R / 120.0 | 3.01 ± 4.46 | |
| HAT-P-38b (MEDIUM) 2022-10-05 | Paolo Arcangelo Matassa P:M.P.H.R. Deep Sky (K81) | Ritchey Chretien 40cm-F5.3 CCD ICX453AQ / Lum / 120.0 | 2.78 ± 4.32 | |
| HAT-P-38b (MEDIUM) 2022-10-05 | Martin Crow Burnham Observatory | Celestron C9.25 SX694 mono / R / 120.0 | 0.19 ± 2.02 | |
| HAT-P-38b (MEDIUM) 2022-10-05 | Adrian Jones Private Observatory (I64) | Meade ACF 30cm QSI 583 / R / 200.0 | -2.32 ± 1.37 | |
| HAT-P-38b (MEDIUM) 2022-09-22 | Matthieu Bachschmidt Gonachon | Celestron C11 SBIG ST8XME / AstrodonExoPlanet-BB / 60.0 | 0.6 ± 1.87 | |
| HAT-P-38b (MEDIUM) 2021-11-05 | Anaël Wünsche Observatoire des Baronnies Provençales | CDK Planewave 2 ZWO ASI6200 / Clear / 120.0 | -1.39 ± 1.58 | |
| HAT-P-38b (MEDIUM) 2021-10-08 | Manfred Raetz privat observatory Herges-Hallenberg | SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / Clear / 120.0 | -1.29 ± 0.86 | |
| HAT-P-38b (MEDIUM) 2020-10-25 | Danilo Sedita Osservatorio Sedita Castrofilippo | RC GSO 14" Moravian G2-1600 / R / 60.0 | 1.29 ± 2.02 | |
| HAT-P-38b (MEDIUM) 2020-10-25 | Carmelo Falco GALHassin Robotic Telescope 2 (GRT2) | Giacometti-Fogale RC16 Andor Apogee Aspen CG16M / Lum / 60.0 | -0.3 ± 1.73 | |
| HAT-P-38b (MEDIUM) 2017-10-22 | Steven Peterson Vail View Observatory H18 | RCOS 14.5" f/ 7.9 SBIG STL-1301E / AstrodonExoPlanet-BB / 120.0 | -0.95 ± 1.17 | |
| HAT-P-38b (MEDIUM) 2016-10-29 | Anaël Wünsche Observatoire des Baronnies Provençales | Astelco FLIPL230 / Lum / 120.0 | -2.24 ± 1.3 | |
ETD Observations |
||||
| Planet Observation Date |
Observer(s) | ETD link | O-C minutes |
|
| HAT-P-38b (MEDIUM) 2021-11-05 | Yves Jongen | 1636324797 | 1.48 ± 1.38 | |
| HAT-P-38b (MEDIUM) 2021-10-08 | F. Lomoz | 1633763615 | 1.3 ± 2.3 | |
Literature Mid-times |
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| Planet Observation Date |
Reference | O-C minutes |
||
| 2017-09-29 | Mallonn et al. 2019 | -1.27 ± 2.15 | ||
| 2016-08-25 | Bruno et al. 2018 | 0.05 ± 0.14 | ||
| 2016-03-02 | Bruno et al. 2018 | 1.22 ± 0.65 | ||
| 2011-10-28 | Sato et al. 2012 | -0.62 ± 0.5 | ||