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Kepler-17 b

View target in exoplanet catalog
Timing Plot
Global Light Curve

Total Reductions to Date: 10

Date Processed: 09/18/2023 at 00:07:19 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 1.4857094614590345 1.7692369565747905e-07
Ephemeris (BJD_TDB) 2460177.662108585 0.0006005978185654288
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 298.3952437 decimal
DEC 47.8149865 decimal
Host Star Metallicity 0.26 0.1 Gajdoš et al. 2019
Host Star log(g) 4.45 0.04 Log10(cgs) Gajdoš et al. 2019
Host Star Radius [R_Sun] 1.01 0.04 Sol Gajdoš et al. 2019
Host Star Effective Temperature [K] 5781.0 85.0 K Gajdoš et al. 2019
a/Rs 5.6229 0.0909 Q1-Q17 DR25 KOI Table
eccentricity 0.0 Q1-Q17 DR25 KOI Table
inclination [degrees] 88.93 0.15 deg Q1-Q17 DR25 KOI Table
omega [degrees] 0.0 deg Gajdoš et al. 2019
orbital period [days] 1.48571099 2e-08 day Gajdoš et al. 2019
Rp 14.34 0.64 R_Earth Berger et al. 2018
Rp/Rs 0.1443 0 Q1-Q17 DR25 KOI Table
ephemeris [JD] 2455185.67875 7e-06 BJD Gajdoš et al. 2019

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2454965.793459375 3.1875e-05 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, Q1-Q8 KOI Table
2455185.6782726664 1.7666666666666668e-05 BJD, BJD-TDB, BJD-UTC Gajdoš et al. 2019, Bonomo et al. 2017, Désert et al. 2011
2459825.552259 0.000903 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0004138
Parameter Value Uncertainty
Am1 0.932 0.068
Am2 0.052 0.03
a/Rs 6.07 0.26
Rp/Rs 0.14 0.055
ephemeris [JD] 2458299.728 0.01
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 1.7603564862642325
u1 -3.1188465700617085
u2 3.7650574982526614
u3 -1.4065673583514564
duration 0.0889 0.0061
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO CJOK (collaborate/publish) MOBS
Light curve chart for 0002813
Parameter Value Uncertainty
Am1 0.99 0.094
Am2 0.013 0.028
a/Rs 5.58 0.26
Rp/Rs 0.077 0.053
ephemeris [JD] 2458593.907 0.012
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 1.7605649886166839
u1 -3.11928138159863
u2 3.7657432094925096
u3 -1.407026760396617
duration 0.0919 0.006
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO MJJA (collaborate/publish) MOBS
Light curve chart for 0002487
Parameter Value Uncertainty
Am1 0.936 0.046
Am2 0.062 0.078
a/Rs 5.29 0.26
Rp/Rs 0.132 0.047
ephemeris [JD] 2459012.889 0.011
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 1.760580788180083
u1 -3.119886026561202
u2 3.7664912905124246
u3 -1.4071859960062119
duration 0.1013 0.0067
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO WJEC (collaborate/publish) MOBS
Light curve chart for 0001565
Parameter Value Uncertainty
Am1 0.961 0.0074
Am2 0.06 0.07
a/Rs 5.22 0.25
Rp/Rs 0.154 0.023
ephemeris [JD] 2459737.8836 0.0044
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 2.4022993976674254
u1 -4.333987760699704
u2 4.556800455423425
u3 -1.6251120244895292
duration 0.0923 0.0015
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 0001742
Parameter Value Uncertainty
Am1 0.997 0.0093
Am2 0.0026 0.0084
a/Rs 5.27 0.25
Rp/Rs 0.1271 0.0072
ephemeris [JD] 2459786.9311 0.0031
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 1.7606301457150388
u1 -3.1194833843892757
u2 3.7657150024707238
u3 -1.4068617076829608
duration 0.1016 0.005
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO CCHD (collaborate/publish)
Light curve chart for 0001792
Parameter Value Uncertainty
Am1 0.7335 0.0094
Am2 0.287 0.054
a/Rs 6.03 0.26
Rp/Rs 0.044 0.027
ephemeris [JD] 2459798.791 0.012
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 2.883110584187542
u1 -5.269404417303535
u2 5.182799673008883
u3 -1.7965057626631573
duration 0.0802 0.006
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
IJ Johnson I 780.0 nm 1020.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0003838
Parameter Value Uncertainty
Am1 1.019 0.015
Am2 -0.016 0.01
a/Rs 6.07 0.23
Rp/Rs 0.137 0.012
ephemeris [JD] 2460113.7794 0.0033
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 2.020693011604545
u1 -3.692048121427177
u2 4.216263705056728
u3 -1.544908532406871
duration 0.0885 0.0035
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)
Light curve chart for 0004335
Parameter Value Uncertainty
Am1 0.962 0.013
Am2 0.036 0.039
a/Rs 5.83 0.25
Rp/Rs 0.152 0.012
ephemeris [JD] 2460162.8085 0.003
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 2.020379484734598
u1 -3.6912296684008066
u2 4.215188101404118
u3 -1.5443378549267117
duration 0.0937 0.0044
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)
Light curve chart for 0004336
Parameter Value Uncertainty
Am1 1.107 0.01
Am2 -0.097 0.085
a/Rs 6.07 0.23
Rp/Rs 0.139 0.017
ephemeris [JD] 2460168.7543 0.0032
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 2.020286354502722
u1 -3.691335566754767
u2 4.215498808213091
u3 -1.5444495331452188
duration 0.089 0.0038
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)
Light curve chart for 0004309
Parameter Value Uncertainty
Am1 1.051 0.014
Am2 -0.044 0.021
a/Rs 5.29 0.25
Rp/Rs 0.146 0.013
ephemeris [JD] 2460177.6695 0.0039
eccentricity 0.0
inclination [degrees] 88.93
omega [degrees] 0.0
orbital period [days] 1.48571099
u0 2.02049403978986
u1 -3.691840412549805
u2 4.216143541680695
u3 -1.5447971060953152
duration 0.1032 0.0052
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV Clear (unfiltered) reduced to V sequence 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO NANF (collaborate/publish)

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