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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: 05/24/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 4.2180202007811305 6.46328023394474e-07
Ephemeris (BJD_TDB) 2460306.6929183775 0.0003334346068199532

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 1.0002 0.0057
Am2 0.001 0.02
a/Rs 11.17 0.2
Rp/Rs 0.1286 0.005
ephemeris [JD] 2459551.6613 0.0025
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.638684965198006
u1 -2.8230104628669426
u2 3.4237942896816986
u3 -1.2394687409942517
duration 0.1345 0.0025
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 1.0029 0.0048
Am2 -0.002 0.0018
a/Rs 10.79 0.21
Rp/Rs 0.1284 0.0033
ephemeris [JD] 2459939.7258 0.0017
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.712638267548569
u1 -2.982157646006754
u2 3.549416346675825
u3 -1.2798969153272148
duration 0.1393 0.0027
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 0.0031 0.0063
a/Rs 10.51 0.23
Rp/Rs 0.108 0.028
ephemeris [JD] 2460192.805 0.01
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.639562360899698
u1 -2.8256331043490177
u2 3.4273470395963463
u3 -1.2412762450755759
duration 0.1402 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 1.008 0.024
Am2 -0.004 0.0046
a/Rs 10.46 0.23
Rp/Rs 0.125 0.026
ephemeris [JD] 2460251.8652 0.0077
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.6391980549330567
u1 -2.824768508659721
u2 3.4263093676716974
u3 -1.240738862889045
duration 0.1433 0.0049
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 0.9957 0.006
Am2 0.0024 0.0019
a/Rs 10.85 0.2
Rp/Rs 0.1229 0.0035
ephemeris [JD] 2460306.6925 0.0016
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 1.9709085614480584
u1 -3.339212190314177
u2 3.6760299587019283
u3 -1.3077262750586942
duration 0.1376 0.0026
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 0.19
Rp/Rs 0.1271 0.0032
ephemeris [JD] 2459859.5813 0.0016
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.509153340057168
u1 -4.40563053610058
u2 4.427862795143269
u3 -1.5313855331195598
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 2.5095850087659604
u1 -4.406904934307782
u2 4.429335092026081
u3 -1.5320151004820235
duration 0.1393 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 10.6 0.19
Rp/Rs 0.1229 0.003
ephemeris [JD] 2459872.2362 0.0016
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5091041374122223
u1 -4.405523505194651
u2 4.427794587580778
u3 -1.5313751538190687
duration 0.1413 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 8043b6985cd878174ef76fae1e007529
Parameter Value Uncertainty
Am1 1.0002 0.0054
Am2 0
a/Rs 10.94 0.2
Rp/Rs 0.1249 0.003
ephemeris [JD] 2459880.6768 0.0015
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5087862457935644
u1 -4.404630280499406
u2 4.426803695305779
u3 -1.5309595946354215
duration 0.1367 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 b15db942d11d1569600749d271f93723
Parameter Value Uncertainty
Am1 1.0007 0.0051
Am2 0
a/Rs 11.2 0.17
Rp/Rs 0.1282 0.0029
ephemeris [JD] 2459855.3634 0.0014
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5086452316745387
u1 -4.404243030515124
u2 4.426376135993362
u3 -1.5307782711946327
duration 0.1342 0.0022
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 11.1 0.17
Rp/Rs 0.1258 0.003
ephemeris [JD] 2459868.0181 0.0013
eccentricity 0.07
inclination [degrees] 89.28
omega [degrees] 0.0
orbital period [days] 4.21802091
u0 2.5090765716935617
u1 -4.4055348870862785
u2 4.4278679564310455
u3 -1.5314095750579546
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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