exoclock

HAT-P-1b

Discovered by: Bakos et al. 2007

The Star
Simbad
GAIA
2MASS		 BD+37 4734B
DR2 1928431764627661440
J22574684+3840302
RA 22:57:46.8443 DEC +38:40:30.355
Parallax
6.262 mas		 P.M. RA
32.384 mas/y		 P.M. DEC
-41.751 mas/y
MagV
9.87		 MagR
10.02		 MagI
9.7		 MagJ
9.156		 MagH
8.923		 MagK
8.858
MagG
10.179		 MagGBP
10.51		 MagGRP
9.714
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2455801.7739 ± 0.00018 BJDTDB
Period
4.4652992 ± 4e-07 days
Transit Parameters
Nikolov et al. 2014
Rp/Rs
0.11802 ± 0.00018		 a/Rs
9.85 +0.07 -0.07
 i
85.63 +0.06 -0.06 deg
e
-		 ω
- deg
DepthR*
15.23 mmag		 Duration*
2.88 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Torres et al. 2008
Teff
5975.0 +120.0 -120.0 K
 Log(g)
4.38 +0.03 -0.03 cm/s2
 Fe/H
0.13 +0.08 -0.08 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		LOW
13 (6)

10

0.0±0.3

HAT-P-1b


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2022-07-01 Kevin Johnson
Holbrook Observatory		 Meade LX10 EMC
Atik 383L+ / R / 45.0		 2.6 ± 2.0
2022-07-01 Patrick Brandebourg
Patrick Brandebourg (Observatoire du Guernet)		 RC 250
Asi294MM Pro / R / 30.0		 2.3 ± 3.5
2021-11-02 Martin Crow
Burnham Observatory		 Celestron C9.25
SX694 mono / R / 20.0		 -3.1 ± 4.3
2021-10-24 Jacques Michelet
Claix		 GSO Ritchey-Chrétien
QSI-632 / R / 30.0		 1.2 ± 1.0
2021-10-24 Robert Roth
TURMX Observatory		 CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / r' / 60.0		 0.4 ± 1.0
2021-10-24 Bernhard Wenzel
Vienna Lillte Telescope - Department of Astrophysics		 Cassegrain A=80 cm F=6,64 m
FLI Proline PL16803 / V / 15.0		 -1.1 ± 0.9
2020-10-05 Harri Kiiskinen
Hankasalmi observatory		 RCOS Carbon Tube Ritchey-Chrétien Telescope
SBIG STX-16803 / R / 15.0		 2.7 ± 3.0 - Data available
2020-07-22 Martin Smith
Heathwood Road		 Skywatcher 120mm ED Apochromatic
Atik 414 ex / R / 12.0		 -1.0 ± 4.3 - Data available
2020-07-22 Pierros Papadeas
Archodiko		 Celestron EdgeHD 9.25
ASI183MM-Pro / Lum / 10.0		 -1.6 ± 2.0 - Data available
2019-12-02 Martin Crow
Burnham Observatory		 Celestron
SX694 mono / R / 20.0		 -0.8 ± 2.2 - Data available
2019-09-08 Anaël Wünsche
Observatoire des Baronnies Provençales		 CDK Planewave
SBIG STL11K / B / 60.0		 2.6 ± 2.2
2017-09-28 Anaël Wünsche
Observatoire des Baronnies Provençales		 Astelco
FLIPL230 / V / 30.0		 -0.1 ± 0.4 - Data available
2016-07-04 Anaël Wünsche
Observatoire des Baronnies Provençales		 CDK Planewave
SBIG STL11K / Clear / 60.0		 -1.0 ± 5.8 - Data available


Literature Mid-times

Observation
Date		 Mid-time Time format Reference O-C
minutes
2012-10-03 2456203.64907 ± 0.00095 HJD_UTC Turner et al. 2016 -1.4 ± 1.4
2007-10-08 2454381.80849 ± 0.00125 HJD_UTC Johnson et al. 2008 0.7 ± 1.8
2007-09-20 2454363.94601 ± 0.00091 HJD_UTC Johnson et al. 2008 -1.1 ± 1.3
2006-11-29 2454069.23795 ± 0.0029 HJD_UTC Winn et al. 2007 1.3 ± 4.2
2006-10-02 2454011.18837 ± 0.00107 HJD_UTC Winn et al. 2007 0.3 ± 1.5
2006-09-28 2454006.72326 ± 0.00059 HJD_UTC Winn et al. 2007 0.6 ± 0.8
2006-09-19 2453997.79348 ± 0.00047 HJD_UTC Winn et al. 2007 1.8 ± 0.7
2006-09-19 2453997.792 ± 0.00054 HJD_UTC Winn et al. 2007 -0.4 ± 0.8
2006-09-10 2453988.86197 ± 0.00076 HJD_UTC Winn et al. 2007 0.5 ± 1.1
2006-09-01 2453979.92848 ± 0.00069 HJD_UTC Winn et al. 2007 -3.7 ± 1.0
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