ExoClock

The Star
Simbad GAIA 2MASS	WASP-11 DR2 123376685084303360 J03092855+3040249
RA	03:09:28.5427		DEC	+30:40:24.868
Parallax 7.992 mas		P.M. RA 3.856 mas/y		P.M. DEC -44.826 mas/y
Mag_V 11.57	Mag_R 11.42	Mag_I^* 10.508	Mag_J 10.015	Mag_H 9.56	Mag_K 9.421
Mag_G 11.554		Mag_{G_BP} 12.101		Mag_{G_RP} 10.885
^*Calculated from GAIA magnitudes.

Ephemeris - Verified
Kokori et al. 2021
Mid-time 2456200.28683 ± 9e-05 BJD_TDB
Period 3.722479 ± 3e-07 days
Transit Parameters
Wang et al. 2014
R_p/R_s 0.131 ± 0.0008	a/R_s 12.3 +0.11 -0.11		i 89.1 +0.5 -0.5 deg
R_p/R_s 0.131 ± 0.0008	e -		ω - deg
Depth_R^* 23.79 mmag		Duration^* 2.58 hours
^Calculated from the other parameters, using PyLightcurve. ^*Adjusted to produce a duration that matches the observations.
Limb Darkening Parameters
West et al. 2009
T_eff 4800.0 +100.0 -100.0 K	Log(g) 4.45 +0.2 -0.2 cm/s²		Fe/H 0.0 +0.2 -0.2 dex

ExoClock Status
Observing Priority ExoClock Observations (Recent) Space Observations Literature Mid-times ETD Observations O-C minutes		LOW 26 (9) 13 0.68±0.15

ExoClock Observations

Observation Date	Observer Observatory	Telescope Camera / Filter / Exp [s]	O-C minutes
2021-12-31	Matthieu Bachschmidt Gonachon	Celestron C11 SBIG ST8XME / Astrodon ExoPlanet-BB / 60.0	1.1 ± 0.4
2021-12-02	Aziz Ettahar Kaeouach High Atlas Observatory	Celestron C11 hd Zwo asi 294 mm pro / R / 60.0	0.1 ± 1.4
2021-11-28	Andre Kovacs MicroObservatory Cecillia	152mm Maksutov Kodak KAF-1402ME / Clear / 60.0	0.4 ± 2.0
2021-11-20	Paolo Arcangelo Matassa P.M.P.H.R. Deep Sky (K81)	Ritchey Chretien 40cm-F4.6 ICX453AQ / Lum / 90.0	3.0 ± 2.9
2021-11-20	Dominique DANIEL La Montjoie	Celestron CGX C8 XLT Camera CMOS ZWO ASI294MC pro (color) / Clear / 90.0	-6.0 ± 2.7
2021-11-13	Andre Kovacs MicroObservatory Cecillia	152mm Maksutov Kodak KAF-1402ME / Clear / 60.0	0.4 ± 3.2
2021-11-05	Robert Roth TURMX Observatory	Planewave CDK17 QHY600M / r' / 60.0	1.0 ± 0.3
2021-11-05	Giorgio Baj M57	Ritchey-Chretien Sbig STT1603 ME / Clear / 180.0	0.5 ± 0.9
2021-11-05	Giovanni Battista Casalnuovo FSO Filzi School Observatory	RC14" f/8 QHY9 / Clear / 30.0	-0.7 ± 0.7
2021-02-25	Fabio Mortari Hypatia Observatory	Ritchey Chretienne 250mm f/5.3 Sbig ST8-XE / R / 200.0	0.4 ± 2.3
2020-12-31	Martin Smith Heathwood Road	Celestron EdgeHD 800 Atik 414 ex / R / 90.0	1.1 ± 1.0
2020-11-21	Leon Bewersdorff Lbew	20cm Celestron SE QHY600M PH / V / 30.0	-1.5 ± 1.2	- Data available
2020-11-06	Manfred Raetz privat observatory Herges-Hallenberg	SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / Clear / 120.0	-1.5 ± 0.7	- Data available
2020-09-15	Adrian Jones Private Observatory (I64)	Meade ACF 30cm QSI 583 / R / 60.0	1.5 ± 0.9	- Data available
2020-09-15	Simon Dawes William James II Observatory	Skywatcher MN190 2 ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / R / 120.0	-0.9 ± 1.0	- Data available
2020-09-11	Yves Jongen Deep Sky Chile	Plane Wave CDK 17" Moravian 4G / R / 120.0	2.5 ± 0.7	- Data available
2020-08-19	Krzysztof Bernacki Observatory Pyskowice	RC12" GSO ASI ZWO 1600 MM / ATIK 11000M / R / 60.0	-1.8 ± 3.6	- Data available
2020-08-19	Iakovos Strikis Elizabeth Observatory of Athens	Sky Watcher Quattro SBIG STF-8300mm / R / 60.0	-2.7 ± 1.7	- Data available
2019-12-18	Martin Fowler MicroObservatory Cecilia	MicroObservatory robotic telescope KAF 1402ME / Clear / 60.0	2.9 ± 4.3
2019-12-10	Anaël Wünsche Observatoire des Baronnies Provençales	CDK Planewave SBIG STL11K / Clear / 120.0	-1.9 ± 1.3	- Data available
2018-12-14	Anaël Wünsche Observatoire des Baronnies Provençales	Astelco FLIPL230 / Lum / 60.0	0.8 ± 0.4	- Data available
2018-12-14	Yves Jongen Rasteau Observatory	Plane Wave CDK 17" SBIG STXL 11002 / V / 120.0	0.5 ± 0.9	- Data available
2018-09-08	Anaël Wünsche Observatoire des Baronnies Provençales	CDK Planewave SBIG STL11K / Clear / 120.0	2.8 ± 1.6	- Data available
2016-09-27	Marc Deldem Les Barres Observatory	Celestron C8 SBIG ST8-XME / Clear / 120.0	4.3 ± 1.3	- Data available
2015-01-07	Anaël Wünsche Observatoire des Baronnies Provençales	Astelco FLIPL230 / V / 60.0	0.5 ± 0.9	- Data available
2012-12-31	Claudio Lopresti Claudio Lopresti	Meade LX200 CCD Sbig ST9xe / R / 180.0	0.6 ± 1.0	- Data available

Literature Mid-times

Observation Date	Mid-time	Time format	Reference	O-C minutes
2014-10-03	2456933.61522 ± 0.00018	BJD_TDB	Mancini et al. 2015	0.0 ± 0.3
2014-10-03	2456933.61504 ± 8e-05	BJD_TDB	Mancini et al. 2015	-0.2 ± 0.1
2011-10-30	2455865.26122 ± 0.00166	BJD_UTC	Wang et al. 2014	-2.5 ± 2.4
2011-10-08	2455842.92952 ± 0.00044	BJD_TDB	Sada et al. 2012	1.0 ± 0.6
2011-10-08	2455842.92921 ± 0.00021	BJD_TDB	Sada et al. 2012	0.5 ± 0.3
2010-11-07	2455507.90419 ± 0.00042	BJD_TDB	Sada et al. 2012	-2.2 ± 0.6
2009-11-26	2455161.71529 ± 0.00021	BJD_TDB	Sada et al. 2012	0.1 ± 0.3
2009-11-15	2455150.54662 ± 0.00104	BJD_TDB	Mancini et al. 2015	-1.6 ± 1.5
2009-11-07	2455143.10266 ± 0.00046	BJD_UTC	Wang et al. 2014	0.9 ± 0.7
2008-12-07	2454808.07904 ± 0.00012	BJD_UTC	Wang et al. 2014	0.2 ± 0.2
2008-11-22	2454793.19063 ± 0.00076	BJD_UTC	Wang et al. 2014	2.3 ± 1.1
2008-09-20	2454729.90716 ± 0.0002	BJD_TDB	Mancini et al. 2015	-0.6 ± 0.3
2008-01-07	2454473.05586 ± 0.0002	HJD_UTC	West et al. 2009	0.0 ± 0.3

WASP-11b

Discovered by: West et al. 2009

ExoClock Observations

Literature Mid-times