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WASP-26 b

View target in exoplanet catalog

Timing Plot

Total Reductions to Date: 1

Date Processed: 04/03/2025 at 07:00:25 (PDT)

Exoplanet Watch Ephemeris

Parameter	Value	Uncertainty
Orbital Period (Days)	2.756598088887098	3.641121587363802e-07
Ephemeris (BJD_TDB)	2459878.770556788	0.00043736121133537226

Assumed Priors

Parameter	Value	Uncertainty	Units	Reference
RA	4.6030424		decimal
DEC	-15.2674044		decimal
Host Star Metallicity	-0.02	0.09		Kokori et al. 2023
Host Star log(g)	4.3	0.2	Log10(cgs)	Kokori et al. 2023
Host Star Radius [R_Sun]	1.34	0.06	Sol	Kokori et al. 2023
Host Star Effective Temperature [K]	5950.0	100.0	K	Kokori et al. 2023
a/R_s	6.64	0.16		Kokori et al. 2023
eccentricity	0.0039			Bonomo et al. 2017
inclination [degrees]	82.8	0.3	deg	Kokori et al. 2023
omega [degrees]	0.0		deg	Knudstrup et al. 2024
orbital period [days]	2.75659747	4.6e-07	day	Kokori et al. 2023
R_p	13.8	0.75	R_Earth	ExoFOP-TESS TOI
R_p/R_s	0.0962	0		ExoFOP-TESS TOI
ephemeris [JD]	2457309.62113	0.00025	BJD-TDB	Kokori et al. 2023

Previously Published Mid-Transit Times

Value	Uncertainty	Units	Reference
2455123.6379	0.0005	HJD	Smalley et al. 2010
2455228.38879	0.000665	BJD-TDB, HJD	Albrecht et al. 2012, Anderson et al. 2011
2455837.59821	0.00044	BJD-TDB	Bonomo et al. 2017, Southworth et al. 2014
2456548.80037	0.00022	BJD-TDB	Ivshina & Winn 2022
2456631.49797	0.00023	BJD-TDB	Kokori et al. 2022
2457309.62113	0.00025	BJD-TDB	Kokori et al. 2023
2459090.383107	0.00048461	BJD	ExoFOP-TESS TOI

Observations

Light curve chart for 0002282

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Parameter	Value	Uncertainty
Am1	1.0026	0.0033
Am2	-0.00151	0.00077
a/R_s	6.55	0.1
R_p/R_s	0.0951	0.0033
ephemeris [JD]	2459878.7694	0.0015
eccentricity	0.0039
inclination [degrees]	82.8
omega [degrees]	0.0
orbital period [days]	2.75659747
u0	2.1554067944023236
u1	-3.7999129931857283
u2	4.170275333199425
u3	-1.525769072274075
duration	0.0982	0.0034

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)	CWT

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