results

TOI-2109 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) 0.6724748641311878 6.910921424395359e-07
Ephemeris (BJD_TDB) 2460048.916802944 0.0006988639369289425
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 253.1862971 decimal
DEC 16.5799153 decimal
Host Star Metallicity 0.068 0.07 Wong et al. 2021
Host Star log(g) 4.139 0.041 Log10(cgs) Wong et al. 2021
Host Star Radius [R_Sun] 1.698 0.062 Sol Wong et al. 2021
Host Star Effective Temperature [K] 6540.0 160.0 K Wong et al. 2021
a/Rs 2.268 0.021 Wong et al. 2021
eccentricity 0.0 Wong et al. 2021
inclination [degrees] 70.74 0.37 deg Wong et al. 2021
omega [degrees] 0.0 deg Wong et al. 2021
orbital period [days] 0.67247414 2.8e-08 day Wong et al. 2021
Rp 15.1 0.53 R_Earth Wong et al. 2021
Rp/Rs 0.0816 0 Wong et al. 2021
ephemeris [JD] 2459378.45937 5.9e-05 BJD-TDB Wong et al. 2021

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2459378.45937 5.9e-05 BJD-TDB Wong et al. 2021
2458984.38888 0.00042 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0001569
Parameter Value Uncertainty
Am1 1.785 0.012
Am2 -0.496 0.042
a/Rs 2.36 0.061
Rp/Rs 0.151 0.047
ephemeris [JD] 2459742.961 0.012
eccentricity 0.0
inclination [degrees] 70.74
omega [degrees] 0.0
orbital period [days] 0.67247414
u0 1.9918085826152423
u1 -3.558792362163004
u2 4.112546364088751
u3 -1.5455625232592736
duration 0.055 0.012
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 LPAC (collaborate/publish)
Light curve chart for 0003186
Parameter Value Uncertainty
Am1 1.012 0.0038
Am2 -0.0067 0.0043
a/Rs 2.371 0.06
Rp/Rs 0.081 0.013
ephemeris [JD] 2460040.8412 0.0047
eccentricity 0.0
inclination [degrees] 70.74
omega [degrees] 0.0
orbital period [days] 0.67247414
u0 2.3893583645917102
u1 -4.243598576828522
u2 4.445384630617034
u3 -1.591144352138829
duration 0.0388 0.0053
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 KADB (collaborate/publish) PERC
Light curve chart for 0003213
Parameter Value Uncertainty
Am1 1.0025 0.0096
Am2 -0.001 0.0099
a/Rs 2.369 0.054
Rp/Rs 0.1061 0.0081
ephemeris [JD] 2460048.913 0.0029
eccentricity 0.0
inclination [degrees] 70.74
omega [degrees] 0.0
orbital period [days] 0.67247414
u0 2.5967782131424118
u1 -4.639856618980085
u2 4.689199020046313
u3 -1.6461205443341296
duration 0.0764 0.0038
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)