Skip Navigation
menu close modal

results

HAT-P-1 b

View target in exoplanet catalog
chart

Total Reductions to Date: 7

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

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 4.465300367165127 1.805040014838643e-07
Ephemeris (BJD_TDB) 2459851.8016821146 0.00016593955856725472
Time saved (hours) 0.0003  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 344.4453632 decimal
DEC 38.674919 decimal
Host Star Metallicity 0.13 0.08 Kokori et al. 2022
Host Star log(g) 4.38 0.03 Log10(cgs) Kokori et al. 2022
Host Star Radius [R_Sun] 1.14 0.05 Sol Kokori et al. 2022
Host Star Effective Temperature [K] 5975.0 120.0 K Kokori et al. 2022
a/Rs 9.853 0.071 Nikolov et al. 2014
eccentricity 0.0 Ment et al. 2018
inclination [degrees] 86.11 0.18 deg Bonomo et al. 2017
omega [degrees] 253.1 2.0 deg Ment et al. 2018
orbital period [days] 4.46529958 5.9e-07 day Ivshina & Winn 2022
Rp 14.54 0.66 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1215 0 ExoFOP-TESS TOI
ephemeris [JD] 2454381.80898 0.00021 BJD-TDB Ivshina & Winn 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2453979.931896667 0.00024333333333333333 BJD, BJD-TDB Bonomo et al. 2017, Turner et al. 2016, Nikolov et al. 2014
2453984.397 0.009 HJD Bakos et al. 2007
2454363.94656 0.00072 HJD Johnson et al. 2008
2454381.80898 0.00021 BJD-TDB Ivshina & Winn 2022
2455801.7739 0.00018 BJD-TDB Kokori et al. 2022
2456114.345307 0.00018 JD Wakeford et al. 2013
2459847.336508 0.00023 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0000577
Parameter Value Uncertainty
Am1 0.9652 0.0044
Am2 0.04 0.21
a/Rs 9.5 0.18
Rp/Rs 0.085 0.036
ephemeris [JD] 2458467.5771 0.0049
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.0600827714912984
u1 -3.7331429392705875
u2 4.238985497139059
u3 -1.5659252661939633
duration 0.1171 0.0062
Not 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 MWAA (collaborate/publish)
Light curve chart for a1cb97d7efbd1d4e84e3b0df87693706
Parameter Value Uncertainty
Am1 1.0004 0.0016
Am2 0
a/Rs 10.208 0.014
Rp/Rs 0.06975 0.00071
ephemeris [JD] 2459833.9414 0.00068
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.7284224877509193
u1 -4.906412243117992
u2 4.878416463095139
u3 -1.7004266350339967
duration 0.11392 0.00038
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 53645faa9d2fba9bff66ae552c040d03
Parameter Value Uncertainty
Am1 0.9999 0.0014
Am2 0
a/Rs 10.208 0.014
Rp/Rs 0.06909 0.00069
ephemeris [JD] 2459847.33609 0.00064
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.728218924343905
u1 -4.905294645836688
u2 4.876807831808922
u3 -1.6997320376460388
duration 0.11387 0.00038
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 455d243772bd2590ccfe9ed1d2db8ed7
Parameter Value Uncertainty
Am1 1.0 0.0015
Am2 0
a/Rs 10.208 0.017
Rp/Rs 0.06779 0.00072
ephemeris [JD] 2459851.80197 0.00061
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.7285121623285216
u1 -4.905243738050289
u2 4.876079615675685
u3 -1.6993479672946696
duration 0.11378 0.00042
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 f1a22e1eb586f2873a44f93233099dbb
Parameter Value Uncertainty
Am1 1.0 0.0014
Am2 0
a/Rs 10.208 0.017
Rp/Rs 0.06851 0.00068
ephemeris [JD] 2459842.87167 0.00057
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.7286519776388247
u1 -4.907747401877054
u2 4.880344668337161
u3 -1.7012491713761295
duration 0.11392 0.00044
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 d2b6758b269418c2a992c197b1c6df91
Parameter Value Uncertainty
Am1 1.0001 0.0014
Am2 0
a/Rs 10.208 0.027
Rp/Rs 0.0689 0.00067
ephemeris [JD] 2459829.47407 0.00064
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.729213865143192
u1 -4.907530882695461
u2 4.878714279431286
u3 -1.7003971891805079
duration 0.11392 0.0006
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 759a555ca2ca9c953d687ab471edce6e
Parameter Value Uncertainty
Am1 0.9995 0.0014
Am2 0
a/Rs 10.208 0.015
Rp/Rs 0.06853 0.00078
ephemeris [JD] 2459838.40549 0.00059
eccentricity 0.0
inclination [degrees] 86.11
omega [degrees] 253.1
orbital period [days] 4.46529958
u0 2.7288226468966563
u1 -4.9072712584773255
u2 4.879056167106085
u3 -1.7006074828218134
duration 0.11377 0.00037
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)

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