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HAT-P-51 b

View target in exoplanet catalog
Timing Plot
Global Light Curve

Total Reductions to Date: 11

Date Processed: 05/06/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 4.218020190298421 6.390715102457722e-07
Ephemeris (BJD_TDB) 2460306.6929138615 0.0003274816029339501

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 21.0651251 decimal
DEC 32.8107 decimal
Host Star Metallicity 0.302 0.052 Kang et al. 2024
Host Star log(g) 4.4256 0.0069 Log10(cgs) Kang et al. 2024
Host Star Radius [R_Sun] 0.995 0.013 Sol Kang et al. 2024
Host Star Effective Temperature [K] 5453.0 31.0 K Kang et al. 2024
a/Rs 10.86 0.08 Kang et al. 2024
eccentricity 0.07 Bonomo et al. 2017
inclination [degrees] 89.28 0.3 deg Kang et al. 2024
omega [degrees] 0.0 deg Kang et al. 2024
orbital period [days] 4.21802091 6.6e-07 day Kang et al. 2024
Rp 13.51 0.19 R_Earth Kang et al. 2024
Rp/Rs 0.1361 0 ExoFOP-TESS TOI
ephemeris [JD] 2458349.53123 0.00013 BJD-TDB Kang et al. 2024

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2456194.12243 0.0004 BJD-TDB, BJD-UTC Bonomo et al. 2017, Hartman et al. 2015
2457868.67797 0.00024 BJD-TDB Kokori et al. 2022
2458345.31404 0.00019 BJD-TDB Kokori et al. 2023
2458349.53123 0.00013 BJD-TDB Kang et al. 2024
2459855.36278 0.00097559 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0001087
Parameter Value Uncertainty
Am1 1.0022 0.0057
Am2 -0.001 0.02
a/Rs 11.13 0.21
Rp/Rs 0.1292 0.0052
ephemeris [JD] 2459551.6616 0.0027
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.6393346827419744
u1 -2.825091566722275
u2 3.426607936093394
u3 -1.2408510010526563
duration 0.1352 0.0027
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 0002263
Parameter Value Uncertainty
Am1 1.0033 0.0048
Am2 -0.0023 0.0018
a/Rs 10.73 0.21
Rp/Rs 0.1284 0.0032
ephemeris [JD] 2459939.7258 0.0017
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.712632090919493
u1 -2.982274045793684
u2 3.5497565227940457
u3 -1.2801145150243607
duration 0.1401 0.0028
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 418.0 nm 700.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 0004407
Parameter Value Uncertainty
Am1 0.997 0.023
Am2 0.0035 0.0063
a/Rs 10.47 0.23
Rp/Rs 0.11 0.028
ephemeris [JD] 2460192.8039 0.0099
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.6393470324480912
u1 -2.8253391783970527
u2 3.4270986881162044
u3 -1.241106491099493
duration 0.141 0.0048
Not 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 CPHB (collaborate/publish) MOBS
Light curve chart for 0004918
Parameter Value Uncertainty
Am1 1.007 0.024
Am2 -0.0031 0.0046
a/Rs 10.48 0.23
Rp/Rs 0.126 0.025
ephemeris [JD] 2460251.8662 0.0074
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.6394480462458587
u1 -2.825473339876404
u2 3.4271264734161893
u3 -1.2411011287174798
duration 0.1431 0.0046
Not 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 CPHB (collaborate/publish) MOBS
Light curve chart for 0005230
Parameter Value Uncertainty
Am1 0.9954 0.006
Am2 0.0027 0.0019
a/Rs 10.83 0.21
Rp/Rs 0.1226 0.0034
ephemeris [JD] 2460306.6924 0.0016
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.9708403261275091
u1 -3.3387963387919397
u2 3.675597538281234
u3 -1.3076414708461321
duration 0.1381 0.0028
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
R Cousins R 561.7 nm 719.7 nm
Organization Observer Code Secondary Observers
AAVSO IGE (collaborate/publish)
Light curve chart for cff8bdb33f5a21bfbe08ab9606d09f08
Parameter Value Uncertainty
Am1 1.0001 0.0056
Am2 0
a/Rs 11.18 0.18
Rp/Rs 0.1271 0.0031
ephemeris [JD] 2459859.5813 0.0015
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5086486789617104
u1 -4.404348528630132
u2 4.42657044235852
u3 -1.5308705267290583
duration 0.1342 0.0023
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
EPW TESS (collaborate/publish)
Light curve chart for b5257b2001e30003a9fdf95b0e445708
Parameter Value Uncertainty
Am1 1.0002 0.0052
Am2 0
a/Rs 10.72 0.2
Rp/Rs 0.122 0.0029
ephemeris [JD] 2459876.4548 0.0016
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5091426002672828
u1 -4.405564619712083
u2 4.427750243769705
u3 -1.5313281583462857
duration 0.1398 0.0026
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
EPW TESS (collaborate/publish)
Light curve chart for da8889f532eeb66a661f70a883ae4508
Parameter Value Uncertainty
Am1 0.9997 0.0054
Am2 0
a/Rs 10.59 0.19
Rp/Rs 0.1229 0.0031
ephemeris [JD] 2459872.2361 0.0015
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.509158525288858
u1 -4.405568495779667
u2 4.427758429109337
u3 -1.5313483926397868
duration 0.1413 0.0027
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
EPW TESS (collaborate/publish)
Light curve chart for 8043b6985cd878174ef76fae1e007529
Parameter Value Uncertainty
Am1 1.0002 0.0054
Am2 0
a/Rs 10.95 0.2
Rp/Rs 0.1249 0.003
ephemeris [JD] 2459880.6769 0.0015
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5088828166637893
u1 -4.405063018507158
u2 4.427416582950781
u3 -1.5312363151337638
duration 0.1367 0.0026
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
EPW TESS (collaborate/publish)
Light curve chart for b15db942d11d1569600749d271f93723
Parameter Value Uncertainty
Am1 1.0007 0.0051
Am2 0
a/Rs 11.2 0.16
Rp/Rs 0.1282 0.003
ephemeris [JD] 2459855.3633 0.0014
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.50884412842267
u1 -4.404602819658672
u2 4.426583842944794
u3 -1.5308250857475518
duration 0.1342 0.002
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
EPW TESS (collaborate/publish)
Light curve chart for 356b64a4d30754a4db4be47ec08bffa3
Parameter Value Uncertainty
Am1 0.9995 0.0052
Am2 0
a/Rs 11.08 0.17
Rp/Rs 0.1259 0.003
ephemeris [JD] 2459868.018 0.0014
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.509163172114488
u1 -4.405751744526581
u2 4.42812512207534
u3 -1.5315364836790408
duration 0.1352 0.0021
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
EPW TESS (collaborate/publish)

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