exoclock
exoclock
XO-3b
Discovered by: Johns-Krull et al. 2008
The Star
Simbad
GAIA
2MASS
BD+57 793
DR2 470650560777348352
J04215269+5749018
RA 04:21:52.7044 DEC +57:49:01.892
Parallax
4.666 mas
P.M. RA
-2.516 mas/y
P.M. DEC
4.003 mas/y
MagV
9.85
MagR*
9.567
MagI*
9.354
MagJ
9.013
MagH
8.845
MagK
8.791
MagG
9.739
MagGBP
9.965
MagGRP
9.393
* calculated from GAIA magnitudes

Ephemeris - Verified True
Kokori et al. 2020
Mid-time
2454721.14865 ± 0.00014 BJDTDB
Period
3.191526 ± 5e-07 days

Transit Parameters
Wong et al. 2014
Rp/Rs
0.0882 ± 0.0004
a/Rs
7.05 +0.08 -0.1
i
84.11 +0.16 -0.16 deg
e
0.2769 +0.0017 -0.0016
ω
347.2 +1.7 -1.6 deg
DepthR*
8.73 mmag
Duration*
2.94 hours
* calculated from the other parameters, using PyLightcurve

Limb Darkening Parameters
Johns-Krull et al. 2008
Teff
6429.0 +50.0 -50.0 K
Log(g)
3.95 +0.06 -0.06 cm/s2
Fe/H
-0.18 +0.03 -0.03 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
LOW
16 (1)
-1.8±0.6
18
XO-3b


ExoClock Observations
Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2021-03-01 Fabio Mortari
Hypatia Observatory
Ritchey Chretienne 250mm f/5.3
Sbig ST8-XE / R / 120.0
1.5 ± 2.2
2020-11-22 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / R / 30.0
-3.4 ± 2.4
2020-11-06 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / R / 60.0
-0.7 ± 2.3
2020-11-06 Mauro Calo’
Cavallino
RC
SBIG ST10 / Lum / 60.0
-5.8 ± 2.3
2020-11-03 Simon Dawes
William James II Observatory
Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / R / 30.0
-0.6 ± 3.0
2020-11-03 Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 5.0
-1.6 ± 3.2
2020-11-03 Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 30.0
-4.0 ± 4.3
2020-11-03 Martin Smith
Heathwood Road
Skywatcher 120mm ED Apochromatic
Atik 414 ex / R / 10.0
-5.5 ± 7.2
2020-10-22 Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 30.0
0.5 ± 2.7
2020-10-22 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / B / 20.0
-3.6 ± 2.2
2020-03-15 Alberto Tomatis
Alto-Observatory
RC
STL 6303 / R / 50.0
-2.7 ± 3.5 - Data available
2020-02-28 Mauro Calo’
Cavallino
GSO RC
SBIG ST10 / R / 60.0
2.2 ± 1.7 - Data available
2020-02-28 Alessandro Nastasi
Galhassin Robotic Telescope (GRT)
Officina Stellare RiLa 400
FLI ProLine 16803 / R / 45.0
1.1 ± 2.3 - Data available
2020-02-28 Alberto Tomatis
Alto-Observatory
RC
STL 6303 / R / 50.0
0.2 ± 2.0 - Data available
2020-01-24 Alessandro Nastasi
Galhassin Robotic Telescope 1 (GRT1)
Officina Stellare RiLa 400
FLI ProLine 16803 / R / 40.0
-4.4 ± 1.2
2020-01-08 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / V / 60.0
-2.9 ± 1.7 - Data available


Literature Mid-times
Observation
Date
Mid-time Time format Reference O-C
minutes
2012-12-01 2456262.6566 ± 0.0015 BJD_TDB Turner et al. 2017 1.3 ± 2.2
2009-02-02 2454864.76684 ± 0.0004 BJD_UTC Winn et al. 2009 0.4 ± 0.6
2008-02-29 2454526.4668 ± 0.0026 BJD_UTC Hébrard et al. 2008 2.9 ± 3.7
2008-02-17 2454513.69768 ± 0.0009 HJD_UTC Winn et al. 2008 -1.5 ± 1.3
2008-02-10 2454507.31319 ± 0.00118 HJD_UTC Winn et al. 2008 -3.6 ± 1.7
2008-01-16 2454481.78455 ± 0.0007 HJD_UTC Winn et al. 2008 1.6 ± 1.0
2008-01-13 2454478.59308 ± 0.00119 HJD_UTC Winn et al. 2008 1.7 ± 1.7
2007-12-31 2454465.8261 ± 0.00038 HJD_UTC Winn et al. 2008 0.4 ± 0.5
2007-12-15 2454449.8681 ± 0.0002 HJD_UTC Garai et al. 2017 -0.1 ± 0.3
2007-12-15 2454449.86742 ± 0.00067 HJD_UTC Winn et al. 2008 -1.1 ± 1.0
2007-11-07 2454411.56904 ± 0.00161 HJD_UTC Winn et al. 2008 -1.1 ± 2.3
2007-10-25 2454398.80332 ± 0.00066 HJD_UTC Winn et al. 2008 -0.6 ± 1.0
2007-10-22 2454395.61179 ± 0.00167 HJD_UTC Winn et al. 2008 -0.6 ± 2.4
2007-10-18 2454392.41999 ± 0.0013 HJD_UTC Winn et al. 2008 -1.0 ± 1.9
2007-10-09 2454382.84523 ± 0.00112 HJD_UTC Winn et al. 2008 -1.2 ± 1.6
2007-10-09 2454382.845 ± 0.00265 HJD_UTC Winn et al. 2008 -1.6 ± 3.8
2007-09-17 2454360.50866 ± 0.00173 HJD_UTC Winn et al. 2008 4.7 ± 2.5
2006-10-16 2454025.3967 ± 0.0038 HJD_UTC Johns-Krull et al. 2008 2.2 ± 5.5
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