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K2-284 b

View target in exoplanet catalog

Total Reductions to Date: 1

Date Processed: 05/18/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter	Value	Uncertainty
Orbital Period (Days)	-	-
Ephemeris (BJD_TDB)	-	-

Assumed Priors

Parameter	Value	Uncertainty	Units	Reference
RA	79.1407971		decimal
DEC	20.2549034		decimal
Host Star Metallicity	0.0	0.08		Kokori et al. 2023
Host Star log(g)	4.67	0.01	Log10(cgs)	Kokori et al. 2023
Host Star Radius [R_Sun]	0.607	0.022	Sol	Kokori et al. 2023
Host Star Effective Temperature [K]	4140.0	50.0	K	Kokori et al. 2023
a/R_s	16.84	0.62		Kokori et al. 2023
eccentricity	0.078	0.108		Kokori et al. 2023
inclination [degrees]	89.0	0.65	deg	Kokori et al. 2023
omega [degrees]	180.2	126.4	deg	Kokori et al. 2023
orbital period [days]	4.7948599	5e-06	day	Kokori et al. 2023
R_p	2.78	0.14	R_Earth	David et al. 2018
R_p/R_s	0.0477	0		ExoFOP-TESS TOI
ephemeris [JD]	2458146.80246	0.00062	BJD-TDB	Kokori et al. 2023

Previously Published Mid-Transit Times

Value	Uncertainty	Units	Reference
2458146.80246	0.00062	BJD-TDB	Kokori et al. 2023
2457859.11316	0.00043	BJD	David et al. 2018
2460251.750696	0.00306	BJD	ExoFOP-TESS TOI

Observations

Light curve chart for 0001980

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Parameter	Value	Uncertainty
Am1	1.023	0.0043
Am2	-0.012	0.022
a/R_s	13.96	1.77
R_p/R_s	0.095	0.024
ephemeris [JD]	2459848.99	0.0097
eccentricity	0.078
inclination [degrees]	89.0
omega [degrees]	180.2
orbital period [days]	4.7948599
u0	2.1548548414726585
u1	-3.1948189870156085
u2	3.058495028891863
u3	-1.0185308377737852
duration	0.0975	0.008

Not included in ephemeris calculations

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

Filter	Detail	Min	Max
I	Cousins I	721.0 nm	875.0 nm

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

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