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HAT-P-53 b

View target in exoplanet catalog
Timing Plot
Global Light Curve

Total Reductions to Date: 8

Date Processed: 05/09/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 1.9616248686602689 3.2389080250816447e-07
Ephemeris (BJD_TDB) 2460252.912627192 0.00043406214746744253

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 21.8711012 decimal
DEC 38.9681137 decimal
Host Star Metallicity 0.0 0.08 Kokori et al. 2023
Host Star log(g) 4.31 0.043 Log10(cgs) Kokori et al. 2023
Host Star Radius [R_Sun] 1.209 0.081 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 5956.0 50.0 K Yalçınkaya et al. 2024
a/Rs 5.6 0.3 Kokori et al. 2023
eccentricity 0.085 Bonomo et al. 2017
inclination [degrees] 86.2 1.5 deg Kokori et al. 2023
omega [degrees] 0.0 deg Yalçınkaya et al. 2024
orbital period [days] 1.96162529 3.5e-07 day Yalçınkaya et al. 2024
Rp 12.9 1.02 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1172 0 ExoFOP-TESS TOI
ephemeris [JD] 2458771.88605 0.00028 BJD-TDB Yalçınkaya et al. 2024

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2455829.4481929997 0.00044 BJD-TDB, BJD-UTC Bonomo et al. 2017, Hartman et al. 2015
2457502.7149 0.0003 BJD-TDB Kokori et al. 2022
2457898.96242 0.00039 BJD-TDB Kokori et al. 2023
2458771.88605 0.00028 BJD-TDB Yalçınkaya et al. 2024
2458785.619295 0.0015216 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0000846
Parameter Value Uncertainty
Am1 0.9991 0.0057
Am2 0.0017 0.0032
a/Rs 5.39 0.14
Rp/Rs 0.1342 0.0052
ephemeris [JD] 2459434.9123 0.0015
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.6376659148649635
u1 -4.718574008142662
u2 4.741453418806314
u3 -1.660545254875454
duration 0.1256 0.0037
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
SI Sloan i 697.5 nm 827.5 nm
Organization Observer Code Secondary Observers
AAVSO LNWA (collaborate/publish) BPAG
Light curve chart for 0001077
Parameter Value Uncertainty
Am1 1.657 0.051
Am2 -0.528 0.058
a/Rs 7.09 0.25
Rp/Rs 0.2343 0.0053
ephemeris [JD] 2459550.65 0.0038
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.4773501964709355
u1 -4.450904810872227
u2 4.621099032047068
u3 -1.647544348786036
duration 0.101 0.0043
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CBB Astrodon ExoPlanet-BB 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0001966
Parameter Value Uncertainty
Am1 0.873 0.0062
Am2 0.131 0.055
a/Rs 5.2 0.29
Rp/Rs 0.1615 0.0075
ephemeris [JD] 2459846.8421 0.0036
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.7434846360316807
u1 -4.934921887318035
u2 4.895518447054406
u3 -1.7040811228191415
duration 0.1168 0.0055
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0002000
Parameter Value Uncertainty
Am1 1.04 0.029
Am2 -0.037 0.029
a/Rs 4.11 0.22
Rp/Rs 0.142 0.017
ephemeris [JD] 2459850.7704 0.0046
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.0720832265279654
u1 -3.764283615167329
u2 4.275821235944394
u3 -1.5836207835903289
duration 0.171 0.01
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV MObs CV 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO NANF (collaborate/publish)
Light curve chart for 0002005
Parameter Value Uncertainty
Am1 0.989 0.019
Am2 0.0104 0.0076
a/Rs 4.88 0.75
Rp/Rs 0.094 0.017
ephemeris [JD] 2459852.7304 0.0066
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.4764250185474865
u1 -4.44735773045508
u2 4.6166039316603085
u3 -1.6456711509599553
duration 0.133 0.024
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CBB Astrodon ExoPlanet-BB 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO NANF (collaborate/publish)
Light curve chart for 0002116
Parameter Value Uncertainty
Am1 1.0004 0.0075
Am2 -0.0002 0.0027
a/Rs 5.84 0.34
Rp/Rs 0.1119 0.0053
ephemeris [JD] 2459897.8578 0.0029
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 1.8280703920089618
u1 -3.192916627015311
u2 3.797875868194276
u3 -1.4330295765951662
duration 0.1118 0.0076
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO CCHD (collaborate/publish)
Light curve chart for 0004171
Parameter Value Uncertainty
Am1 1.0325 0.0089
Am2 -0.0174 0.0026
a/Rs 5.83 0.69
Rp/Rs 0.109 0.013
ephemeris [JD] 2460152.8658 0.0068
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.0717004863918
u1 -3.7629878470107845
u2 4.274178191146621
u3 -1.5828907668374192
duration 0.112 0.016
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV MObs CV 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 0004930
Parameter Value Uncertainty
Am1 0.9945 0.007
Am2 0.0045 0.0026
a/Rs 5.36 0.29
Rp/Rs 0.1196 0.0067
ephemeris [JD] 2460252.9123 0.0031
eccentricity 0.085
inclination [degrees] 86.2
omega [degrees] 0.0
orbital period [days] 1.96162529
u0 2.4152113780462554
u1 -4.269159626975632
u2 4.432262271565071
u3 -1.5783139565898394
duration 0.1244 0.008
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
RJ Johnson R 590.0 nm 810.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)

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