exoclock

HAT-P-27b (LOW)

Discovered by: Béky et al. 2011

The Star
Simbad
GAIA
2MASS		 HAT-P-27
DR2 1159336403336463872
J14510418+0556505
RA 14:51:04.1870 DEC +05:56:50.548
Parallax
4.992 mas		 P.M. RA
-28.621 mas/y		 P.M. DEC
-2.757 mas/y
MagV
12.19		 MagR
11.98		 MagI
11.23		 MagJ
10.626		 MagH
10.249		 MagK
10.109
MagG
11.956		 MagGBP
12.419		 MagGRP
11.352
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457128.31066 ± 0.00013 BJDTDB
Period
3.03957804 ± 2.4e-07 days
Transit Parameters
Béky et al. 2011
Rp/Rs
0.119 ± 0.003		 a/Rs
9.7 +0.4 -0.5
 i
84.7 +0.4 -0.7 deg
e
0.08 +0.05 -0.05
 ω
63.0 +64.0 -64.0 deg
DepthR*
14.08 mmag		 Duration*
1.68 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Béky et al. 2011
Teff
5300.0 +90.0 -90.0 K
 Log(g)
4.51 +0.04 -0.04 cm/s2
 Fe/H
0.29 +0.1 -0.1 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.94"
Total Observations (Recent) 56 (12)
O-C -1.28 ± 0.34 minutes
ExoClock Observations (Recent) 45 (12)
Space Observations (Recent) 0 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 11 (0)
Kepler Rp/Rs -
TESS Rp/Rs -

HAT-P-27b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-27b (LOW)
2024-05-17		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		7.37 ± 3.17
HAT-P-27b (LOW)
2024-05-10		Javier Alonso Santiago
INAF-OACT		SC
Moravian C4 / R / 150.0		6.45 ± 4.46
HAT-P-27b (LOW)
2024-05-10		Lluis Ribe
Les Pedritxes		Celestron
Moravian G3 16200 / R / 120.0		1.12 ± 1.73
HAT-P-27b (LOW)
2024-05-07		Andre Kovacs
Moletai Astronomical Observatory (MAO)		35 cm Maksutov f/3.5
Apogee Alta U47 / R / 120.0		0.93 ± 1.11
HAT-P-27b (LOW)
2024-05-07		Enrique Arce
Vallbona Observatory		Ritchey Chretien
ZWO ASI 294 MM PRO / Lum / 300.0		-1.22 ± 1.87
HAT-P-27b (LOW)
2024-05-07		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-5.39 ± 2.74
HAT-P-27b (LOW)
2024-05-04		Zlatko Orbanić
Explorer		Newton Truss 254mm F/3.8
Atik 414 Ex Mono / rpr / 60.0		0.33 ± 3.31
HAT-P-27b (LOW)
2024-04-25		Alexey Garmash
Lyceum 130		EdgeHD C11
ASI2600MM pro / R / 180.0		-1.21 ± 1.43
HAT-P-27b (LOW)
2024-03-23		Darryl Madison
Ajijic Observatory		Celestron CPC 800 Edge HD
ZWO2400MC / Clear / 120.0		-0.4 ± 1.58
HAT-P-27b (LOW)
2024-03-23		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-0.71 ± 0.94
HAT-P-27b (LOW)
2023-07-15		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-3.7 ± 0.91
HAT-P-27b (LOW)
2023-07-05		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		1.2 ± 2.45
HAT-P-27b (LOW)
2023-05-09		Anaël Wünsche
El Sauce Observatory		CDK Planewave Chili
Moravian G4 16k / Lum / 120.0		-3.9 ± 1.08
HAT-P-27b (LOW)
2023-04-30		David Quiles
David Quiles Observatory		Celestron EDGEHD 800
Omegon veTEC 571M / R / 120.0		1.52 ± 2.45
HAT-P-27b (LOW)
2023-04-23		Tõnis Eenmäe
Tartu Observatory		Planewave CDK 12.5
Apogee Alta U42 / R / 90.0		-1.86 ± 1.44
HAT-P-27b (LOW)
2022-06-30		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 60.0		-3.09 ± 0.86
HAT-P-27b (LOW)
2022-06-20		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		-1.45 ± 2.74
HAT-P-27b (LOW)
2022-06-14		Stefano Lora
MarSEC		Ritchey Chrétien
Moravian G2 Mark II / Clear / 120.0		2.95 ± 1.3
HAT-P-27b (LOW)
2022-04-15		Adam Popowicz
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / R / 65.0		5.05 ± 2.45
HAT-P-27b (LOW)
2022-04-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		0.99 ± 1.87
HAT-P-27b (LOW)
2022-04-05		Marc Serrau
A77 Dauban		Celestron 11
ST8-XME / Clear / 120.0		0.49 ± 1.58
HAT-P-27b (LOW)
2022-02-16		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-1.88 ± 1.01
HAT-P-27b (LOW)
2022-02-07		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 150.0		0.18 ± 2.02
HAT-P-27b (LOW)
2021-06-09		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-0.19 ± 1.15
HAT-P-27b (LOW)
2021-06-02		Mario Billiani
starbase		Unistellar eVscope
Sony IMX224 / Clear / 119.09991		0.47 ± 5.76
HAT-P-27b (LOW)
2021-05-24		Carmelo Falco
GAL Hassin Robotic Telescope 2 (GRT2) - Multiband		Giacometti-Fogale RC16 - 2
Andor Apogee Aspen CG16M / gpr / 90.0		-0.06 ± 2.45
HAT-P-27b (LOW)
2021-05-24		Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / Lum / 60.0		-1.5 ± 2.88
HAT-P-27b (LOW)
2021-04-18		Billy Edwards
Haleakala Observatory		LCO Meade
SBIG STX6303 / rpr / 59.937		-0.58 ± 1.3
HAT-P-27b (LOW)
2021-04-12		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.51 ± 1.01
HAT-P-27b (LOW)
2021-04-09		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / V / 120.0		3.35 ± 1.15
HAT-P-27b (LOW)
2021-03-28		Marc Deldem
Les Barres Observatory		Celestron C11
SBIG ST10-XME / Clear / 120.0		-1.52 ± 1.01
HAT-P-27b (LOW)
2021-03-28		Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / gpr / 90.0		-2.68 ± 1.87
HAT-P-27b (LOW)
2021-03-25		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		2.48 ± 1.01
HAT-P-27b (LOW)
2021-03-25		Alberto Tomatis
Alto-Observatory		RC
STL 6303 / Lum / 60.0		0.75 ± 2.88
HAT-P-27b (LOW)
2021-03-25		Ivo Peretto
MarSEC Marana Space Explorer Center		R-C
Moravia G2-1600 MkII / Clear / 60.0		-0.26 ± 2.16
HAT-P-27b (LOW)
2021-03-25		Mauro Caló
Cavallino		RC
SBIG ST10 / Lum / 60.0		-0.55 ± 4.32
HAT-P-27b (LOW)
2021-03-25		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 100.0		-1.12 ± 2.3
HAT-P-27b (LOW)
2021-03-15		Rauno Neito
Tartu Observatory		Planewave CDK 12.5
Apogee Alta U42 / R / 60.0		0.22 ± 1.44
HAT-P-27b (LOW)
2020-05-22		Matthias Mallonn
STELLA		Cassegrain
optical CCD photometer / rpr / 50.0		-1.58 ± 0.58
HAT-P-27b (LOW)
2020-05-19		Matthias Mallonn
STELLA		Cassegrain
optical CCD photometer / rpr / 50.0		-0.03 ± 0.72
HAT-P-27b (LOW)
2020-05-15		John Savage
Z42 Rushay Farm Observatory		Celestron 14Edge
ZWO ASI6200MM / Clear / 120.0		0.95 ± 1.15
HAT-P-27b (LOW)
2020-05-15		Matthias Mallonn
STELLA		Cassegrain
optical CCD photometer / rpr / 50.0		-0.21 ± 0.58
HAT-P-27b (LOW)
2020-05-15		Francois Regembal
HRTobs		Astrosib RC360
SBIG STX 16803 / Lum / 60.0		-2.37 ± 2.88
HAT-P-27b (LOW)
2020-03-07		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / R / 120.0		0.51 ± 1.17
HAT-P-27b (LOW)
2017-05-29		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 300.0		2.07 ± 2.16

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2018-03-23 Wang et al. 2021 1.86 ± 4.32
2017-03-05 Wang et al. 2021 1.26 ± 1.38
2013-06-03 Seeliger et al. 2015 0.75 ± 0.43
2012-04-25 Seeliger et al. 2015 -0.5 ± 1.94
2012-04-01 Seeliger et al. 2015 -0.15 ± 3.34
2011-05-21 Sada et al. 2012 0.29 ± 0.56
2011-05-06 Seeliger et al. 2015 0.79 ± 0.73
2011-04-08 Seeliger et al. 2015 0.49 ± 1.67
2011-04-05 Seeliger et al. 2015 -2.24 ± 1.54
2010-06-14 Anderson et al. 2011 -0.27 ± 0.33
2009-12-20 Béky et al. 2011 -1.05 ± 0.78
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