Exoplanet Exploration

Skip Navigation

menu close modal

results

TOI-3819 b

View target in exoplanet catalog

Timing Plot

Total Reductions to Date: 2

Date Processed: 05/09/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter	Value	Uncertainty
Orbital Period (Days)	3.244337301179258	1.3094269949818799e-05
Ephemeris (BJD_TDB)	2460261.91914287	0.003041668904044203

Assumed Priors

Parameter	Value	Uncertainty	Units	Reference
RA	121.8632568		decimal
DEC	29.3886446		decimal
Host Star Metallicity	0.273	0.084		Yee et al. 2023
Host Star log(g)	4.156	0.027	Log10(cgs)	Yee et al. 2023
Host Star Radius [R_Sun]	1.538	0.037	Sol	Yee et al. 2023
Host Star Effective Temperature [K]	5859.0	72.0	K	Yee et al. 2023
a/R_s	6.43	0.17		Yee et al. 2023
eccentricity	0.0			Yee et al. 2023
inclination [degrees]	82.79	0.3	deg	Yee et al. 2023
omega [degrees]	0.0		deg	Yee et al. 2023
orbital period [days]	3.2443141	5.5e-06	day	Yee et al. 2023
R_p	13.14	0.4	R_Earth	Yee et al. 2023
R_p/R_s	0.0783	0		Yee et al. 2023
ephemeris [JD]	2459502.7437	0.00038	BJD-TDB	Yee et al. 2023

Previously Published Mid-Transit Times

Value	Uncertainty	Units	Reference
2459502.744214	0.0004056	BJD, BJD-TDB	Yee et al. 2023, ExoFOP-TESS TOI

Observations

Light curve chart for 0004935

Copy link to this observation

Parameter	Value	Uncertainty
Am1	0.9993	0.0081
Am2	-0.0007	0.0042
a/R_s	6.53	0.3
R_p/R_s	0.115	0.011
ephemeris [JD]	2460248.93	0.0057
eccentricity	0.0
inclination [degrees]	82.79
omega [degrees]	0.0
orbital period [days]	3.2443141
u0	2.3713371403500227
u1	-4.172662399544151
u2	4.33012613452993
u3	-1.5288008108118936
duration	0.121	0.013

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)

Light curve chart for 0005033

Copy link to this observation

Parameter	Value	Uncertainty
Am1	1.0043	0.0029
Am2	-0.0029	0.002
a/R_s	6.45	0.23
R_p/R_s	0.0847	0.006
ephemeris [JD]	2460261.9235	0.0035
eccentricity	0.0
inclination [degrees]	82.79
omega [degrees]	0.0
orbital period [days]	3.2443141
u0	2.067690173435363
u1	-3.7772514260219334
u2	4.26400046535275
u3	-1.5544391492276217
duration	0.1168	0.0096

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)

Explore Alien Worlds