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Kepler-422 b

View target in exoplanet catalog

Timing Plot

Total Reductions to Date: 1

Date Processed: 04/21/2025 at 07:00:25 (PDT)

Exoplanet Watch Ephemeris

Parameter	Value	Uncertainty
Orbital Period (Days)	7.8914533050183895	5.487070281167218e-07
Ephemeris (BJD_TDB)	2460494.8096324024	0.0003525312625369438

Assumed Priors

Parameter	Value	Uncertainty	Units	Reference
RA	282.6296334		decimal
DEC	46.3232807		decimal
Host Star Metallicity	0.23	0.09		Kokori et al. 2023
Host Star log(g)	4.31	0.073	Log10(cgs)	Kokori et al. 2023
Host Star Radius [R_Sun]	1.24	0.12	Sol	Kokori et al. 2023
Host Star Effective Temperature [K]	5972.0	84.0	K	Kokori et al. 2023
a/R_s	14.2	1.9		Kokori et al. 2023
eccentricity	0.0			Q1-Q17 DR25 KOI Table
inclination [degrees]	88.3	0.3	deg	Kokori et al. 2023
omega [degrees]	0.0		deg	Kokori et al. 2023
orbital period [days]	7.89144912	4.9e-07	day	Kokori et al. 2023
R_p	12.85	0.29	R_Earth	Fulton & Petigura 2018
R_p/R_s	0.1017	0		Q1-Q17 DR25 KOI Table
ephemeris [JD]	2455641.565849	2.6e-05	BJD-TDB	Kokori et al. 2023

Previously Published Mid-Transit Times

Value	Uncertainty	Units	Reference
2454955.009187	5.1e-05	BJD	Holczer et al. 2016
2455010.24991088	6.0713999999999995e-05	BJD, BJD-TDB, JD	Gajdoš et al. 2019, Q1-Q17 DR25 Supplemental KOI Table, Q1-Q17 DR25 KOI Table, Bonomo et al. 2017, 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
2455641.565849	2.6e-05	BJD-TDB	Kokori et al. 2023
2459776.680872	0.00295085	BJD	ExoFOP-TESS TOI

Observations

Light curve chart for 0006759

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Parameter	Value	Uncertainty
Am1	1.131	0.0056
Am2	-0.107	0.03
a/R_s	12.84	0.51
R_p/R_s	0.157	0.013
ephemeris [JD]	2460494.8081	0.0035
eccentricity	0.0
inclination [degrees]	88.3
omega [degrees]	0.0
orbital period [days]	7.89144912
u0	2.0697069301549886
u1	-3.7854940461131554
u2	4.294804969572
u3	-1.5790177896162523
duration	0.2139	0.0098

Included in ephemeris calculations

Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )

Filter	Detail	Min	Max
CV	MObs CV	350.0 nm	850.0 nm

Organization	Observer Code	Secondary Observers
AAVSO	MBEB (collaborate/publish)

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