exoclock

HAT-P-26b

Discovered by: Hartman et al. 2011

The Star
Simbad
GAIA
2MASS		 HAT-P-26
DR2 3668036348641580288
J14123753+0403359
RA 14:12:37.5329 DEC +04:03:36.117
Parallax
7.022 mas		 P.M. RA
37.839 mas/y		 P.M. DEC
-142.891 mas/y
MagV
11.76		 MagR
11.56		 MagI*
10.809		 MagJ
10.08		 MagH
9.685		 MagK
9.581
MagG
11.464		 MagGBP
11.948		 MagGRP
10.853
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2456892.59046 ± 0.0001 BJDTDB
Period
4.2345002 ± 7e-07 days
Transit Parameters
Hartman et al. 2011
Rp/Rs
0.0737 ± 0.0012		 a/Rs
13.1 +0.8 -0.8
 i
88.6 +0.5 -0.9 deg
e
0.12 +0.06 -0.06
 ω
54.0 +165.0 -165.0 deg
DepthR*
7.28 mmag		 Duration*
2.32 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Hartman et al. 2011
Teff
5079.0 +88.0 -88.0 K
 Log(g)
4.56 +0.06 -0.06 cm/s2
 Fe/H
-0.04 +0.08 -0.08 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		LOW
9 (4)

18

1.1±0.7

HAT-P-26b


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2022-05-09 Adrian Jones
Private Observatory (I64)		 Meade ACF 30cm
QSI 583 / R / 100.0		 1.9 ± 2.9
2022-05-09 Martin Crow
Burnham Observatory		 Celestron C9.25
SX694 mono / R / 120.0		 -1.3 ± 2.0
2022-03-02 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 3.6 ± 2.4
2022-01-23 Fran Campos
Puig d'Agulles Observtory		 RC14" on EQ8 German mount
SBIG ST-8XME / R / 150.0		 0.3 ± 3.2
2021-04-22 John Savage
Z42 Rushay Farm Observatory		 Celestron 14Edge FR
ZWO ASI6200MM / Lum / 60.0		 4.2 ± 4.3
2021-03-20 Yves Jongen
Rasteau Observatory		 Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		 -1.5 ± 4.3
2021-03-20 Anaël Wünsche
Observatoire des Baronnies Provençales		 CDK Planewave 2
ZWO ASI6200 / R / 120.0		 -1.7 ± 1.4
2020-05-31 Matthias Mallonn
STELLA		 Cassegrain
optical CCD photometer / r' / 40.0		 4.1 ± 1.4 - Data available
2018-04-17 Anaël Wünsche
Observatoire des Baronnies Provençales		 Astelco
FLIPL230 / Lum / 60.0		 1.7 ± 2.3 - Data available


Literature Mid-times

Observation
Date		 Mid-time Time format Reference O-C
minutes
2018-04-17 2458226.45772 ± 0.00093 BJD_TDB von Essen et al. 2019 -0.4 ± 1.3
2017-06-17 2457921.57698 ± 0.00078 BJD_TDB von Essen et al. 2019 4.3 ± 1.1
2017-05-31 2457904.63796 ± 0.00066 BJD_TDB von Essen et al. 2019 2.8 ± 1.0
2017-05-14 2457887.69984 ± 0.00089 BJD_TDB von Essen et al. 2019 2.6 ± 1.3
2016-05-15 2457523.53041 ± 0.00072 BJD_TDB von Essen et al. 2019 -0.8 ± 1.0
2016-05-02 2457510.82634 ± 0.00011 HJD_UTC Tsiaras et al. 2018 -0.6 ± 0.2
2016-03-12 2457460.0127 ± 0.00011 HJD_UTC Tsiaras et al. 2018 0.0 ± 0.2
2015-06-23 2457197.47376 ± 0.00046 BJD_TDB von Essen et al. 2019 -1.0 ± 0.7
2015-06-07 2457180.5367 ± 0.00057 BJD_TDB von Essen et al. 2019 0.3 ± 0.8
2015-05-21 2457163.59738 ± 0.0004 BJD_TDB von Essen et al. 2019 -1.5 ± 0.6
2015-04-17 2457129.72283 ± 0.00063 BJD_TDB von Essen et al. 2019 0.5 ± 0.9
2015-04-17 2457129.72248 ± 0.00017 BJD_TDB Stevenson et al. 2016 0.0 ± 0.2
2015-04-12 2457125.4893 ± 0.00063 BJD_TDB von Essen et al. 2019 1.9 ± 0.9
2015-03-31 2457112.78503 ± 0.00058 BJD_TDB von Essen et al. 2019 0.8 ± 0.8
2013-04-23 2456405.62311 ± 7e-05 BJD_TDB Wakeford et al. 2017 0.2 ± 0.1
2010-05-26 2455342.76185 ± 0.00041 BJD_UTC Hartman et al. 2011 -1.1 ± 0.6
2010-04-18 2455304.65122 ± 0.00035 BJD_UTC Hartman et al. 2011 -1.3 ± 0.5
2009-01-28 2454860.02709 ± 0.00147 BJD_UTC Hartman et al. 2011 -3.6 ± 2.1
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