Skip Navigation
menu close modal

results

WASP-31 b

View target in exoplanet catalog
Timing Plot
Global Light Curve

Total Reductions to Date: 7

Date Processed: 09/04/2024 at 16:24:27 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 3.4058875943165976 2.1704328439020255e-07
Ephemeris (BJD_TDB) 2460379.855828113 0.0002483309980464607
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 169.4388603 decimal
DEC -19.0547781 decimal
Host Star Metallicity -0.2 0.09 Bonomo et al. 2017
Host Star log(g) 4.31 0.07 Log10(cgs) ExoFOP-TESS TOI
Host Star Radius [R_Sun] 1.25 0.03 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 6302.0 102.0 K Kokori et al. 2023
a/Rs 8.0 0.19 Kokori et al. 2023
eccentricity 0.047 Bonomo et al. 2017
inclination [degrees] 84.41 0.22 deg Kokori et al. 2023
omega [degrees] 0.0 deg Kokori et al. 2023
orbital period [days] 3.4058875 2.7e-07 day Kokori et al. 2023
Rp 16.88 0.75 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1288 0 ExoFOP-TESS TOI
ephemeris [JD] 2457277.09226 0.00012 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457277.09226 0.00012 BJD-TDB Kokori et al. 2023
2458554.30005 0.00026 BJD Patel & Espinoza 2022
2456371.12617 0.00014 BJD-TDB Ivshina & Winn 2022
2456183.80208 0.0002 BJD-TDB Kokori et al. 2022
2459303.595258 0.000307 BJD ExoFOP-TESS TOI
2455873.86662 0.00011 BJD-TDB Bonomo et al. 2017
2455192.6887 0.0003 HJD Anderson et al. 2011

Observations

Light curve chart for 0005391
Parameter Value Uncertainty
Am1 2.03 0.99
Am2 -0.26 0.24
a/Rs 8.4 0.56
Rp/Rs 0.251 0.075
ephemeris [JD] 2458230.721 0.012
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 1.9236005982742612
u1 -3.3340484026040813
u2 3.8754933768130044
u3 -1.4650455147338328
duration 0.108 0.016
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 FTIA (collaborate/publish) MOBS
Light curve chart for 0005379
Parameter Value Uncertainty
Am1 1.0675 0.0081
Am2 -0.024 0.017
a/Rs 7.1 0.54
Rp/Rs 0.157 0.054
ephemeris [JD] 2458877.873 0.01
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 1.922879986091085
u1 -3.3310411518507035
u2 3.871709753554577
u3 -1.463548530101988
duration 0.0833 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 LIGA (collaborate/publish) MOBS
Light curve chart for 0005718
Parameter Value Uncertainty
Am1 1.002 0.021
Am2 0.001 0.011
a/Rs 8.51 0.54
Rp/Rs 0.057 0.031
ephemeris [JD] 2459599.916 0.012
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 1.924287766099996
u1 -3.337400939491593
u2 3.8799790197369313
u3 -1.4668657885291414
duration 0.085 0.015
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 GJOK (collaborate/publish) MOBS
Light curve chart for 0005506
Parameter Value Uncertainty
Am1 1.003 0.012
Am2 -0.0023 0.0045
a/Rs 7.69 0.52
Rp/Rs 0.119 0.039
ephemeris [JD] 2459633.9743 0.0099
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 1.9240136315857934
u1 -3.3363689328146435
u2 3.878783145720158
u3 -1.4664277866929347
duration 0.107 0.014
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 AEDB (collaborate/publish) MOBS
Light curve chart for 0002835
Parameter Value Uncertainty
Am1 1.055 0.017
Am2 -0.0199 0.0058
a/Rs 7.71 0.41
Rp/Rs 0.157 0.02
ephemeris [JD] 2460001.8073 0.0049
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 2.1277556805888427
u1 -3.8104569285503427
u2 4.27189811302115
u3 -1.589196801403407
duration 0.125 0.012
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 FMAA (collaborate/publish) MOBS
Light curve chart for 0004798
Parameter Value Uncertainty
Am1 1.0366 0.0033
Am2 -0.033 0.027
a/Rs 8.12 0.25
Rp/Rs 0.1306 0.006
ephemeris [JD] 2460066.5193 0.0041
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 2.5280562662451884
u1 -4.476712361595164
u2 4.566788605826234
u3 -1.618132442425806
duration 0.1079 0.006
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
RJ Johnson R 590.0 nm 810.0 nm
Organization Observer Code Secondary Observers
AAVSO PNIF (collaborate/publish)
Light curve chart for 0005652
Parameter Value Uncertainty
Am1 1.065 0.011
Am2 -0.0288 0.0076
a/Rs 7.06 0.42
Rp/Rs 0.171 0.012
ephemeris [JD] 2460379.8408 0.0054
eccentricity 0.047
inclination [degrees] 84.41
omega [degrees] 0.0
orbital period [days] 3.4058875
u0 2.3182386300143576
u1 -4.055627319445986
u2 4.28429069659625
u3 -1.5469019433237148
duration 0.0769 0.0085
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
R Cousins R 561.7 nm 719.7 nm
Organization Observer Code Secondary Observers
AAVSO RHEC (collaborate/publish)

Explore Alien Worlds

Exoplanet Travel Bureau

This set of travel posters envision a day when the creativity of scientists and engineers will allow us to do things we can only dream of now.
More

Strange New Worlds

Explore an interactive gallery of some of the most intriguing and exotic planets discovered so far.
More
A planetary tour through time. The ancients debated the existence of planets beyond our own; now we know of thousands.

Historic Timeline

A planetary tour through time. The ancients debated the existence of planets beyond our own; now we know of thousands.
More