exoclock

TrES-4b (LOW)

Discovered by: Mandushev et al. 2007

The Star
Simbad
GAIA
2MASS
TYC 2620-648-1
DR2 4609062308806929152
J17531304+3712426
RA 17:53:13.0490 DEC +37:12:42.586
Parallax
1.91 mas
P.M. RA
-6.482 mas/y
P.M. DEC
-20.855 mas/y
MagV
11.592
MagR
11.28
MagI
10.991
MagJ
10.583
MagH
10.35
MagK
10.33
MagG
11.473
MagGBP
11.742
MagGRP
11.057
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457482.75059 ± 0.00025 BJDTDB
Period
3.55392889 ± 4.4e-07 days

Transit Parameters
Sozzetti et al. 2015
Rp/Rs
0.1045 ± 0.0007
a/Rs
6.14 +0.24 -0.19
i
83.1 +0.5 -0.4 deg
e
-
ω
- deg
DepthR*
12.05 mmag
Duration*
3.67 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Torres et al. 2008
Teff
6200.0 +75.0 -75.0 K
Log(g)
4.06 +0.02 -0.02 cm/s2
Fe/H
0.14 +0.09 -0.09 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 42 (9)
O-C 0.17 ± 0.46 minutes
ExoClock Observations (Recent) 16 (9)
Space Observations (Recent) 20 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 6 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.09734 ± 0.00042

TrES-4b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
TrES-4b (LOW)
2022-08-11
Alvaro Fornas Silva
Centro Astronómico Alto Turia (CAAT). MPC J57
Planewave CDK 17"
Sbig STXL 11002 / V / 180.0
-0.37 ± 2.59
TrES-4b (LOW)
2022-08-11
Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY
Newton T305
QSI 683WS / Lum / 60.0
-4.11 ± 3.17
TrES-4b (LOW)
2022-08-11
Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0
-4.54 ± 1.44
TrES-4b (LOW)
2022-07-21
Po-Jian Chiu
zhshs obs
Takahashi FS-152
ZWO ASI6200MM / Lum / 60.0
-2.71 ± 2.59
TrES-4b (LOW)
2022-07-10
Dominique DANIEL
La Montjoie
Celestron C8
Camera CMOS ZWO ASI2600MC pro (color) / Clear / 180.0
0.29 ± 4.32
TrES-4b (LOW)
2022-05-22
Bryan Martin
Tiger Butte Obseratory
AG Opitcal
ZWO ASI 294 / AstrodonExoPlanet-BB / 45.0
3.18 ± 5.76
TrES-4b (LOW)
2022-05-08
Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 40.0
-7.02 ± 3.02
TrES-4b (LOW)
2022-04-06
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
FLI Kepler CMOS 4040 / R / 120.0
6.46 ± 1.73
TrES-4b (LOW)
2022-04-06
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0
-3.91 ± 4.32
TrES-4b (LOW)
2020-09-17
John Savage
Z42 Rushay Farm Observatory
Celestron 14Edge
ZWO ASI6200MM / R / 120.0
-2.34 ± 2.3
TrES-4b (LOW)
2020-05-23
Taewoo Kim
Deokheung Optical Astronomy Observatory
NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 90.0
-6.87 ± 1.44
TrES-4b (LOW)
2020-04-11
Alberto Tomatis
Alto-Observatory
RC
STL 6303 / Lum / 120.0
3.42 ± 2.3
TrES-4b (LOW)
2019-03-17
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0
-5.97 ± 2.88
TrES-4b (LOW)
2018-06-19
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
-1.22 ± 1.15
TrES-4b (LOW)
2018-05-19
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
-7.18 ± 1.87
TrES-4b (LOW)
2016-07-26
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
-0.31 ± 1.44

Space Observations

Planet
Observation Date
Mission O-C
minutes
TrES-4b (LOW)
2021-07-20
TESS1.19 ± 1.37
TrES-4b (LOW)
2021-07-17
TESS0.46 ± 1.44
TrES-4b (LOW)
2021-07-13
TESS2.65 ± 1.4
TrES-4b (LOW)
2021-07-06
TESS-0.56 ± 1.4
TrES-4b (LOW)
2021-07-02
TESS0.63 ± 1.58
TrES-4b (LOW)
2021-06-29
TESS2.26 ± 1.58
TrES-4b (LOW)
2021-06-25
TESS-1.3 ± 1.58
TrES-4b (LOW)
2020-07-01
TESS1.32 ± 1.43
TrES-4b (LOW)
2020-06-28
TESS-0.95 ± 2.02
TrES-4b (LOW)
2020-06-24
TESS0.39 ± 1.58
TrES-4b (LOW)
2020-06-21
TESS-0.58 ± 1.58
TrES-4b (LOW)
2020-06-17
TESS1.6 ± 1.41
TrES-4b (LOW)
2020-06-13
TESS3.4 ± 2.02
TrES-4b (LOW)
2020-06-10
TESS0.13 ± 1.44
TrES-4b (LOW)
2020-06-06
TESS-0.06 ± 1.4
TrES-4b (LOW)
2020-06-03
TESS0.4 ± 1.24
TrES-4b (LOW)
2020-05-30
TESS1.26 ± 1.58
TrES-4b (LOW)
2020-05-23
TESS2.09 ± 1.37
TrES-4b (LOW)
2020-05-20
TESS-0.63 ± 1.58
TrES-4b (LOW)
2020-05-16
TESS0.27 ± 1.44

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2010-05-05 Chan et al. 2011 -2.76 ± 1.51
2010-04-28 Chan et al. 2011 0.52 ± 0.89
2009-05-04 Chan et al. 2011 2.17 ± 1.64
2009-04-02 Chan et al. 2011 -1.05 ± 0.71
2008-06-11 Chan et al. 2011 3.31 ± 1.52
2007-05-10 Mandushev et al. 2007 0.64 ± 0.72
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