results

K2-137 b

Total Reductions to Date: 2

Date Processed: 09/06/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) - -
Ephemeris (BJD_TDB) - -
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 186.870426 decimal
DEC -6.1952168 decimal
Host Star Metallicity -0.059 0.18 Adams et al. 2021
Host Star log(g) 5.0 0.06 Log10(cgs) Adams et al. 2021
Host Star Radius [R_Sun] 0.29 0.06 Sol Adams et al. 2021
Host Star Effective Temperature [K] 3697.0 109.0 K Adams et al. 2021
a/Rs 2.1 0.4 Adams et al. 2021
eccentricity 0.0 Smith et al. 2018
inclination [degrees] 93.1 10.0 deg Adams et al. 2021
omega [degrees] 0.0 deg Adams et al. 2021
orbital period [days] 0.179719 2.8e-05 day Adams et al. 2021
Rp 0.64 0.1 R_Earth Adams et al. 2021
Rp/Rs 0.0202 0 Adams et al. 2021
ephemeris [JD] 2457639.27571 0.00077 HJD Adams et al. 2021

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457639.27571 0.00077 HJD Adams et al. 2021
2457583.0242 0.0004 BJD-TDB Smith et al. 2018

Observations

Light curve chart for 0000187
Parameter Value Uncertainty
Am1 0.989 0.04
Am2 0.006 0.021
a/Rs 1.25 1.15
Rp/Rs 0.039 0.012
ephemeris [JD] 2458584.768 0.012
eccentricity 0.0
inclination [degrees] 93.1
omega [degrees] 0.0
orbital period [days] 0.179719
u0 2.1881889138264743
u1 -2.7743271863545824
u2 2.3482882749289757
u3 -0.7621499674086456
duration 0.042 0.026
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CBB Clear with blue-blocking 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0000183
Parameter Value Uncertainty
Am1 0.805 0.025
Am2 0.161 0.077
a/Rs 0.65 1.15
Rp/Rs 0.038 0.012
ephemeris [JD] 2458596.809 0.012
eccentricity 0.0
inclination [degrees] 93.1
omega [degrees] 0.0
orbital period [days] 0.179719
u0 2.1837152058102474
u1 -2.7603468007002707
u2 2.3331918710676702
u3 -0.7565602414103787
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 Clear with blue-blocking 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)