results

WASP-177 b

Timing Plot

Total Reductions to Date: 19

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

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 3.0717203769710557 8.97929624589657e-07
Ephemeris (BJD_TDB) 2460159.9347445956 0.0004700171270488105
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 334.7969885 decimal
DEC -1.8344301 decimal
Host Star Metallicity 0.25 0.04 Kokori et al. 2023
Host Star log(g) 4.486 0.049 Log10(cgs) Kokori et al. 2023
Host Star Radius [R_Sun] 0.885 0.046 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 5017.0 70.0 K Kokori et al. 2023
a/Rs 9.25 0.06 Kokori et al. 2023
eccentricity 0.0 Kokori et al. 2023
inclination [degrees] 84.14 0.66 deg Kokori et al. 2023
omega [degrees] 0.0 deg Kokori et al. 2023
orbital period [days] 3.07172019 6.9e-07 day Kokori et al. 2023
Rp 17.71 7.4 R_Earth Turner et al. 2019
Rp/Rs 0.136 0 Turner et al. 2019
ephemeris [JD] 2458584.14248 0.00017 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457994.3714 0.00028 JD Turner et al. 2019
2458584.14248 0.00017 BJD-TDB Kokori et al. 2023
2459450.3674625 0.000334875 BJD, BJD-TDB Ivshina & Winn 2022, ExoFOP-TESS TOI

Observations

Light curve chart for 0000362
Parameter Value Uncertainty
Am1 1.003 0.01
Am2 -0.013 0.024
a/Rs 9.52 0.17
Rp/Rs 0.204 0.024
ephemeris [JD] 2459044.9046 0.0039
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.7500964858351575
u1 -2.9595893703198395
u2 3.3755687634413643
u3 -1.1660758286567883
duration 0.0731 0.0057
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 FMAA (collaborate/publish)
Light curve chart for 0006124
Parameter Value Uncertainty
Am1 0.67 0.11
Am2 0.24 0.28
a/Rs 9.35 0.17
Rp/Rs 0.271 0.079
ephemeris [JD] 2459078.693 0.012
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4520647831421956
u1 -2.418641624022843
u2 3.0273745582130336
u3 -1.0607976722209895
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
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO MANS (collaborate/publish) MOBS
Light curve chart for 0006367
Parameter Value Uncertainty
Am1 0.963 0.024
Am2 0.0154 0.0044
a/Rs 9.07 0.17
Rp/Rs 0.271 0.029
ephemeris [JD] 2459081.7598 0.0058
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4522075378452153
u1 -2.4192838274523925
u2 3.028343730261209
u3 -1.0612673955281935
duration 0.0942 0.0059
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 MJOU (collaborate/publish) MOBS
Light curve chart for 0009356
Parameter Value Uncertainty
Am1 1.145 0.015
Am2 -0.06 0.014
a/Rs 8.98 0.17
Rp/Rs 0.272 0.053
ephemeris [JD] 2459087.9133 0.0079
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4523141043088656
u1 -2.4191722732392793
u2 3.0279978840959663
u3 -1.061139670044868
duration 0.0564 0.009
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 JROE (collaborate/publish) MOBS
Light curve chart for 0012611
Parameter Value Uncertainty
Am1 0.998 0.028
Am2 0.002 0.021
a/Rs 9.52 0.17
Rp/Rs 0.197 0.062
ephemeris [JD] 2459124.768 0.01
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4520504070839146
u1 -2.4192051244994133
u2 3.028566629473115
u3 -1.061411866928457
duration 0.072 0.012
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 KPRB (collaborate/publish) MOBS
Light curve chart for 0006226
Parameter Value Uncertainty
Am1 1.21 0.014
Am2 -0.16 0.2
a/Rs 8.95 0.15
Rp/Rs 0.271 0.018
ephemeris [JD] 2459161.6286 0.0064
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.452173723821219
u1 -2.4189684537068237
u2 3.0278309323439263
u3 -1.0610361573401248
duration 0.0499 0.0066
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 LBRH (collaborate/publish) MOBS
Light curve chart for 0010057
Parameter Value Uncertainty
Am1 1.016 0.011
Am2 -0.0073 0.0032
a/Rs 9.51 0.17
Rp/Rs 0.196 0.027
ephemeris [JD] 2459164.7056 0.0038
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4525654800631802
u1 -2.419450111793651
u2 3.0280994122123532
u3 -1.0612147353596848
duration 0.0727 0.0061
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 TMUA (collaborate/publish) MOBS
Light curve chart for 0006658
Parameter Value Uncertainty
Am1 0.9933 0.0098
Am2 0.0113 0.0057
a/Rs 8.96 0.16
Rp/Rs 0.236 0.026
ephemeris [JD] 2459345.934 0.005
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4523781276708365
u1 -2.419441426797334
u2 3.0284047004018815
u3 -1.0613413561486378
duration 0.0766 0.0031
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 LANF (collaborate/publish) MOBS
Light curve chart for 0012213
Parameter Value Uncertainty
Am1 1.012 0.018
Am2 -0.011 0.021
a/Rs 9.54 0.17
Rp/Rs 0.236 0.034
ephemeris [JD] 2459431.943 0.0055
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4519599458868009
u1 -2.4183846840022825
u2 3.0271926919677306
u3 -1.0607679087435624
duration 0.078 0.0069
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 LKED (collaborate/publish) MOBS
Light curve chart for 0008990
Parameter Value Uncertainty
Am1 0.921 0.045
Am2 0.056 0.028
a/Rs 9.05 0.17
Rp/Rs 0.194 0.07
ephemeris [JD] 2459465.747 0.012
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.7498140209263502
u1 -2.9593299367931967
u2 3.3757671549334187
u3 -1.1662511887637215
duration 0.081 0.013
Not 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 CMAB (collaborate/publish) MOBS
Light curve chart for 0005484
Parameter Value Uncertainty
Am1 0.863 0.097
Am2 0.098 0.065
a/Rs 8.96 0.17
Rp/Rs 0.27 0.082
ephemeris [JD] 2459465.747 0.012
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.7497085273962327
u1 -2.9587452519486224
u2 3.374865864062601
u3 -1.1658290892207908
duration 0.095 0.013
Not 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 MJAW (collaborate/publish) MOBS
Light curve chart for 0004779
Parameter Value Uncertainty
Am1 0.9943 0.0049
Am2 0.0046 0.008
a/Rs 9.24 0.17
Rp/Rs 0.192 0.012
ephemeris [JD] 2459468.79275 0.00087
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 2.191097470898198
u1 -3.6987727130234997
u2 3.823890249474758
u3 -1.316214950369051
duration 0.0776 0.0044
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
SI Sloan i 697.5 nm 827.5 nm
Organization Observer Code Secondary Observers
AAVSO BCOE (collaborate/publish)
Light curve chart for 0002746
Parameter Value Uncertainty
Am1 0.974 0.017
Am2 0.0155 0.0057
a/Rs 9.55 0.17
Rp/Rs 0.208 0.047
ephemeris [JD] 2459471.852 0.0055
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4524042319723927
u1 -2.419638627163412
u2 3.0286451531097196
u3 -1.0614107127883707
duration 0.0729 0.0088
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 YLUA (collaborate/publish) MOBS
Light curve chart for 0008604
Parameter Value Uncertainty
Am1 3.49 0.69
Am2 -0.99 0.42
a/Rs 9.23 0.18
Rp/Rs 0.209 0.078
ephemeris [JD] 2459505.638 0.012
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4523107295325544
u1 -2.4189755662286543
u2 3.027666906023594
u3 -1.061002024211741
duration 0.078 0.012
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 GJOQ (collaborate/publish) MOBS
Light curve chart for 0008305
Parameter Value Uncertainty
Am1 1.037 0.015
Am2 -0.025 0.029
a/Rs 8.97 0.17
Rp/Rs 0.201 0.057
ephemeris [JD] 2459545.5796 0.0067
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4524720411408332
u1 -2.419535386942306
u2 3.0282904937944815
u3 -1.0612271028679636
duration 0.072 0.0083
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 DTEC (collaborate/publish) MOBS
Light curve chart for 0005429
Parameter Value Uncertainty
Am1 0.403 0.073
Am2 0.5 0.36
a/Rs 9.03 0.17
Rp/Rs 0.271 0.08
ephemeris [JD] 2459932.626 0.012
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.452696391074089
u1 -2.4201586336203267
u2 3.0290565913213507
u3 -1.0615943036386524
duration 0.0605 0.0046
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 VARD (collaborate/publish) MOBS
Light curve chart for 0004232
Parameter Value Uncertainty
Am1 1.051 0.043
Am2 -0.042 0.038
a/Rs 9.3 0.17
Rp/Rs 0.27 0.067
ephemeris [JD] 2460159.922 0.011
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.4524899676176342
u1 -2.419698739025633
u2 3.028592187139489
u3 -1.06138337060195
duration 0.089 0.011
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 CPHB (collaborate/publish) MOBS
Light curve chart for 0004200
Parameter Value Uncertainty
Am1 1.028 0.012
Am2 -0.0203 0.0095
a/Rs 9.54 0.17
Rp/Rs 0.175 0.019
ephemeris [JD] 2460159.9374 0.0032
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.7979503828217756
u1 -2.9273166232816736
u2 3.2795083686778344
u3 -1.1501420793494535
duration 0.0679 0.0051
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 610.0 nm 690.0 nm
Organization Observer Code Secondary Observers
AAVSO VVIA (collaborate/publish)
Light curve chart for 0004419
Parameter Value Uncertainty
Am1 1.219 0.011
Am2 -0.115 0.022
a/Rs 8.97 0.17
Rp/Rs 0.157 0.073
ephemeris [JD] 2460193.708 0.01
eccentricity 0.0
inclination [degrees] 84.14
omega [degrees] 0.0
orbital period [days] 3.07172019
u0 1.45231692429507
u1 -2.4190138261352656
u2 3.0276761076678556
u3 -1.0609791607117702
duration 0.072 0.012
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 CPHB (collaborate/publish) MOBS