results

Kepler-424 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) 3.3118630029111675 1.026651113911949e-06
Ephemeris (BJD_TDB) 2459422.5102893664 0.0013750845947280539
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 298.6249797 decimal
DEC 48.57745 decimal
Host Star Metallicity 0.42 0.04 Fulton & Petigura 2018
Host Star log(g) 4.33005 0.023 Log10(cgs) Gajdoš et al. 2019
Host Star Radius [R_Sun] 1.09206 0.029 Sol Gajdoš et al. 2019
Host Star Effective Temperature [K] 5355.0 122.0 K Gajdoš et al. 2019
a/Rs 10.942 0.534 Q1-Q17 DR25 KOI Table
eccentricity 0.0 Q1-Q17 DR25 KOI Table
inclination [degrees] 85.26 0.79 deg Q1-Q17 DR25 KOI Table
omega [degrees] 0.0 deg Gajdoš et al. 2019
orbital period [days] 3.31186452 2.8e-07 day Gajdoš et al. 2019
Rp 10.02 0.3 R_Earth Fulton & Petigura 2018
Rp/Rs 0.0773 0 Q1-Q17 DR25 KOI Table
ephemeris [JD] 2454964.74288 6.756e-05 BJD Gajdoš et al. 2019

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2454964.7426866726 0.00011754181818181817 BJD, BJD-TDB, JD Gajdoš et al. 2019, Q1-Q17 DR25 Supplemental KOI Table, Q1-Q17 DR25 KOI Table, Bonomo et al. 2017, Holczer et al. 2016, Morton et al. 2016, Q1-Q17 DR24 KOI Table, Q1-Q16 KOI Table, Q1-Q12 KOI Table, Endl et al. 2014, Q1-Q8 KOI Table
2459422.509996 0.00145387 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0001926
Parameter Value Uncertainty
Am1 0.9953 0.0091
Am2 0.0038 0.0069
a/Rs 11.97 0.73
Rp/Rs 0.154 0.023
ephemeris [JD] 2459104.5747 0.0047
eccentricity 0.0
inclination [degrees] 85.26
omega [degrees] 0.0
orbital period [days] 3.31186452
u0 2.2557863685844817
u1 -3.934797562454466
u2 4.099781987016583
u3 -1.4207707320550864
duration 0 0
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 SGEO (collaborate/publish)
Light curve chart for 0001567
Parameter Value Uncertainty
Am1 1.0288 0.007
Am2 -0.0202 0.0063
a/Rs 13.38 1.55
Rp/Rs 0.133 0.039
ephemeris [JD] 2459743.775 0.012
eccentricity 0.0
inclination [degrees] 85.26
omega [degrees] 0.0
orbital period [days] 3.31186452
u0 2.2568589503278482
u1 -3.9374401115536855
u2 4.102509919692062
u3 -1.4219286973340628
duration 0 0
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 0004094
Parameter Value Uncertainty
Am1 0.9908 0.0057
Am2 0.0072 0.0085
a/Rs 8.39 1.61
Rp/Rs 0.152 0.045
ephemeris [JD] 2460147.818 0.012
eccentricity 0.0
inclination [degrees] 85.26
omega [degrees] 0.0
orbital period [days] 3.31186452
u0 1.6145290812796607
u1 -2.7400374416808755
u2 3.2827303758327298
u3 -1.1572219665150207
duration 0 0
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 CCHD (collaborate/publish)