results

WASP-55 b

Timing Plot

Total Reductions to Date: 3

Date Processed: 09/06/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 4.465630395645682 5.122136410748166e-07
Ephemeris (BJD_TDB) 2460069.6013049004 0.0003653968733694144
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 203.7581951 decimal
DEC -17.5034961 decimal
Host Star Metallicity -0.2 0.08 Bonomo et al. 2017
Host Star log(g) 4.4201 0.1 Log10(cgs) ExoFOP-TESS TOI
Host Star Radius [R_Sun] 1.06 0.03 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 5960.0 100.0 K Kokori et al. 2023
a/Rs 10.66 0.07 Kokori et al. 2023
eccentricity 0.056 Bonomo et al. 2017
inclination [degrees] 89.0 0.6 deg Kokori et al. 2023
omega [degrees] 0.0 deg Kokori et al. 2023
orbital period [days] 4.46563013 4.2e-07 day Kokori et al. 2023
Rp 14.73 0.96 R_Earth Kruse et al. 2019
Rp/Rs 0.1355 0 Kruse et al. 2019
ephemeris [JD] 2457207.132185 8e-05 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2455737.93992 0.0003 BJD-TDB, HJD-UTC Bonomo et al. 2017, Hellier et al. 2012
2456416.71565 0.00013 BJD-TDB Southworth et al. 2016
2456720.37845 0.0001 BJD-TDB Kokori et al. 2022
2456778.43182 0.00013 BJD-TDB Ivshina & Winn 2022
2457207.132185 8e-05 BJD-TDB Kokori et al. 2023
2457224.99482 0.000201 BJD Petigura et al. 2018
2459310.444439 0.00047408 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0008436
Parameter Value Uncertainty
Am1 1.029 0.024
Am2 -0.013 0.019
a/Rs 10.97 0.2
Rp/Rs 0.119 0.045
ephemeris [JD] 2459332.761 0.012
eccentricity 0.056
inclination [degrees] 89.0
omega [degrees] 0.0
orbital period [days] 4.46563013
u0 1.8182654674774987
u1 -3.0950977399699355
u2 3.670785559851591
u3 -1.3939532326601864
duration 0.1431 0.0064
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 DJSA (collaborate/publish) MOBS
Light curve chart for 0003322
Parameter Value Uncertainty
Am1 0.991 0.01
Am2 0.0086 0.0035
a/Rs 11.01 0.19
Rp/Rs 0.1225 0.0072
ephemeris [JD] 2460042.8136 0.0044
eccentricity 0.056
inclination [degrees] 89.0
omega [degrees] 0.0
orbital period [days] 4.46563013
u0 2.2108961166716408
u1 -3.827911720645356
u2 4.11564814965668
u3 -1.4986324843550283
duration 0.1427 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 RHAB (collaborate/publish)
Light curve chart for 0004793
Parameter Value Uncertainty
Am1 0.967 0.014
Am2 0.0249 0.0082
a/Rs 10.32 0.18
Rp/Rs 0.124 0.012
ephemeris [JD] 2460069.5922 0.004
eccentricity 0.056
inclination [degrees] 89.0
omega [degrees] 0.0
orbital period [days] 4.46563013
u0 2.4222217264725887
u1 -4.259840533729461
u2 4.417550272527993
u3 -1.5799313994444923
duration 0.1529 0.0031
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 PMGA (collaborate/publish)