results

Kepler-1520 b

Total Reductions to Date: 3

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 290.9662102 decimal
DEC 51.5047656 decimal
Host Star Metallicity -0.18 0.3 Q1-Q17 DR25 KOI Table
Host Star log(g) 4.56323 0.042 Log10(cgs) Q1-Q17 DR25 Supplemental KOI Table
Host Star Radius [R_Sun] 0.7 0.054 Sol Berger et al. 2018
Host Star Effective Temperature [K] 4550.0 159.0 K Berger et al. 2018
a/Rs 1.947 0.888 Q1-Q17 DR25 KOI Table
eccentricity 0.0 Q1-Q17 DR25 KOI Table
inclination [degrees] 50.98 deg Q1-Q17 DR25 KOI Table
omega [degrees] 0.0 deg Berger et al. 2018
orbital period [days] 0.65355361 1.7e-07 day Q1-Q17 DR25 Supplemental KOI Table
Rp 24.35 78.3 R_Earth Berger et al. 2018
Rp/Rs 0.0678 0 Q1-Q17 DR25 KOI Table
ephemeris [JD] 2454965.058957 0.000206 BJD Q1-Q17 DR25 Supplemental KOI Table

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2454965.0590902856 0.00021114285714285714 BJD, JD Q1-Q17 DR25 Supplemental KOI Table, Q1-Q17 DR25 KOI Table, Holczer et al. 2016, Morton et al. 2016, Q1-Q17 DR24 KOI Table, Q1-Q16 KOI Table, Q1-Q12 KOI Table

Observations

Light curve chart for 0001465
Parameter Value Uncertainty
Am1 1.009 0.048
Am2 -0.003 0.02
a/Rs 1.52 2.53
Rp/Rs 0.13 0.04
ephemeris [JD] 2459711.828 0.012
eccentricity 0.0
inclination [degrees] 50.98
omega [degrees] 0.0
orbital period [days] 0.65355361
u0 2.021339553649208
u1 -3.460058840748962
u2 3.7529971976947616
u3 -1.314277854670991
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 Astrodon ExoPlanet-BB 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0001617
Parameter Value Uncertainty
Am1 0.985 0.011
Am2 0.016 0.039
a/Rs 1.65 2.53
Rp/Rs 0.135 0.039
ephemeris [JD] 2459756.92 0.012
eccentricity 0.0
inclination [degrees] 50.98
omega [degrees] 0.0
orbital period [days] 0.65355361
u0 2.0219940937957266
u1 -3.45989585077077
u2 3.7516578036488304
u3 -1.3137559907697294
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 Astrodon ExoPlanet-BB 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0004154
Parameter Value Uncertainty
Am1 0.887 0.0095
Am2 0.088 0.023
a/Rs 1.31 2.55
Rp/Rs 0.133 0.04
ephemeris [JD] 2460152.986 0.012
eccentricity 0.0
inclination [degrees] 50.98
omega [degrees] 0.0
orbital period [days] 0.65355361
u0 2.194050995707708
u1 -3.7488060124397142
u2 3.9206830409112925
u3 -1.3659279657565562
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
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)