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HAT-P-27 b

View target in exoplanet catalog
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Total Reductions to Date: 10

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

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 3.0395785620252833 2.7466391641843403e-07
Ephemeris (BJD_TDB) 2459775.7835297505 0.00031306279206891026
Time saved (hours) 0.0009  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 222.7673221 decimal
DEC 5.9473626 decimal
Host Star Metallicity 0.29 0.1 Kokori et al. 2022
Host Star log(g) 4.51 0.04 Log10(cgs) Kokori et al. 2022
Host Star Radius [R_Sun] 0.9 0.05 Sol Kokori et al. 2022
Host Star Effective Temperature [K] 5300.0 90.0 K Kokori et al. 2022
a/Rs 10.01 0.13 Seeliger et al. 2015
eccentricity 0.028 0.047 Bonomo et al. 2017
inclination [degrees] 85.0 0.2 deg Bonomo et al. 2017
omega [degrees] 0.0 64.0 deg Brown et al. 2012
orbital period [days] 3.0395802 1.2e-06 day Ivshina & Winn 2022
Rp 10.92 0.61 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1111 0 ExoFOP-TESS TOI
ephemeris [JD] 2456018.86487 0.00023 BJD-TDB Ivshina & Winn 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2455186.0195066663 0.0004333333333333333 BJD-TDB, BJD-UTC Bonomo et al. 2017, Seeliger et al. 2015, Béky et al. 2011
2455407.9088 0.0002 BJD-UTC Brown et al. 2012
2456018.86487 0.00023 BJD-TDB Ivshina & Winn 2022
2456638.93852 0.00012 BJD-TDB Kokori et al. 2022
2459693.716285 0.001045 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0000665
Parameter Value Uncertainty
Am1 0.9999 0.0038
Am2 0.0005 0.0014
a/Rs 10.09 0.21
Rp/Rs 0.1403 0.0096
ephemeris [JD] 2459316.80881 0.0009
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 1.587244190706382
u1 -2.713424501279862
u2 3.312912478162066
u3 -1.1867321182223427
duration 0.0699 0.0037
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 CMIA (collaborate/publish)
Light curve chart for 0000771
Parameter Value Uncertainty
Am1 0.993 0.012
Am2 0.0042 0.0048
a/Rs 9.93 0.36
Rp/Rs 0.123 0.026
ephemeris [JD] 2459368.4812 0.0053
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 1.9653312935767604
u1 -3.4382359535207248
u2 3.8198691362606985
u3 -1.3469644193962487
duration 0.0697 0.0074
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 400.0 nm 900.0 nm
Organization Observer Code Secondary Observers
AAVSO BMAW (collaborate/publish) UNIS
Light curve chart for 0001397
Parameter Value Uncertainty
Am1 0.99 0.01
Am2 0.0056 0.002
a/Rs 10.03 0.34
Rp/Rs 0.129 0.017
ephemeris [JD] 2459693.7148 0.0031
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.2262738970865503
u1 -3.8865803531372993
u2 4.087959433606258
u3 -1.4276529166401661
duration 0.0696 0.0063
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 LDJC (collaborate/publish)
Light curve chart for 0001398
Parameter Value Uncertainty
Am1 0.9676 0.0092
Am2 0.0266 0.0084
a/Rs 9.38 0.33
Rp/Rs 0.195 0.021
ephemeris [JD] 2459693.7017 0.0032
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.453323177402845
u1 -4.288101910006029
u2 4.329215796179183
u3 -1.4944369990656567
duration 0.0471 0.0047
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)
Light curve chart for 0001702
Parameter Value Uncertainty
Am1 1.005 0.012
Am2 -0.002 0.013
a/Rs 10.59 0.36
Rp/Rs 0.22 0.023
ephemeris [JD] 2459775.7741 0.0051
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 1.5868521441591013
u1 -2.712917253508208
u2 3.3128760229632648
u3 -1.186810864248459
duration 0.0679 0.0044
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 LPAC (collaborate/publish)
Light curve chart for 45be05d1f7ee2ca397a0643c88dbefb0
Parameter Value Uncertainty
Am1 1.0004 0.0025
Am2 0
a/Rs 10.11 0.18
Rp/Rs 0.1286 0.0081
ephemeris [JD] 2459699.7953 0.00093
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.4527611087230845
u1 -4.2868964380114285
u2 4.328266980000595
u3 -1.4941315862160467
duration 0.0682 0.0035
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
EPW TESS (collaborate/publish)
Light curve chart for 7f28552b0d17cb7d43ec5dd1b4072248
Parameter Value Uncertainty
Am1 1.0 0.0027
Am2 0
a/Rs 9.81 0.17
Rp/Rs 0.1155 0.0054
ephemeris [JD] 2459693.7141 0.0011
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.452644526503366
u1 -4.286839087496397
u2 4.328422198679321
u3 -1.4942275731877728
duration 0.0712 0.0032
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
EPW TESS (collaborate/publish)
Light curve chart for ef6cffbd963234528e69ce59e2f611a0
Parameter Value Uncertainty
Am1 1.0005 0.0022
Am2 0
a/Rs 9.69 0.12
Rp/Rs 0.1111 0.0032
ephemeris [JD] 2459702.83313 0.0009
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.4529222099426446
u1 -4.287497512451061
u2 4.329051046421802
u3 -1.4944756794054976
duration 0.0725 0.0022
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
EPW TESS (collaborate/publish)
Light curve chart for fa4aed362ae7d758e3b65824561c86d3
Parameter Value Uncertainty
Am1 0.9991 0.0022
Am2 0
a/Rs 9.83 0.14
Rp/Rs 0.122 0.0045
ephemeris [JD] 2459705.87176 0.00085
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.4526356951446364
u1 -4.287233323962492
u2 4.329179424581614
u3 -1.4945817312539575
duration 0.0717 0.0026
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
EPW TESS (collaborate/publish)
Light curve chart for d8c04d4b56aefd43cdccc5bedfe34677
Parameter Value Uncertainty
Am1 1.0006 0.0025
Am2 0
a/Rs 9.93 0.16
Rp/Rs 0.1199 0.0054
ephemeris [JD] 2459714.99004 0.00095
eccentricity 0.028
inclination [degrees] 85.0
omega [degrees] 0.0
orbital period [days] 3.0395802
u0 2.453164177971761
u1 -4.288193822498448
u2 4.3298431246386375
u3 -1.4948134155922599
duration 0.0698 0.0029
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
EPW TESS (collaborate/publish)

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