exoclock

WASP-47b

Discovered by: Hellier et al. 2012

The Star
Simbad
GAIA
2MASS		 WASP-47
DR2 2613413008919918976
J22044873-1201079
RA 22:04:48.7262 DEC -12:01:08.000
Parallax
3.75 mas		 P.M. RA
15.023 mas/y		 P.M. DEC
-41.309 mas/y
MagV
11.99		 MagR
11.82		 MagI*
11.161		 MagJ
10.613		 MagH
10.31		 MagK
10.192
MagG
11.789		 MagGBP
12.198		 MagGRP
11.239
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2456354.946 ± 0.0003 BJDTDB
Period
4.1591496 ± 1e-06 days
Transit Parameters
Vanderburg et al. 2017
Rp/Rs
0.10193 ± 0.00021		 a/Rs
9.7 +0.04 -0.04
 i
88.98 +0.2 -0.2 deg
e
-		 ω
- deg
DepthR*
14.01 mmag		 Duration*
3.57 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Hellier et al. 2012
Teff
5350.0 +90.0 -90.0 K
 Log(g)
4.35 +0.03 -0.03 cm/s2
 Fe/H
0.18 +0.07 -0.07 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		LOW
9 (6)

1

0.7±0.4

WASP-47b


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2021-10-20 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 -1.7 ± 1.0
2021-09-25 Anaël Wünsche
El Sauce Observatory		 CDK Planewave Chili
Moravian G4 16k / Lum / 120.0		 1.3 ± 0.9
2021-09-25 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 1.2 ± 1.0
2021-08-31 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 0.9 ± 1.2
2021-08-06 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 3.6 ± 1.0
2021-07-12 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 0.3 ± 1.2
2020-09-19 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		 Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / R / 45.0		 -2.3 ± 1.7 - Data available
2020-08-30 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 -0.3 ± 0.9 - Data available
2020-08-26 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		 Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / R / 45.0		 2.5 ± 1.4 - Data available


Literature Mid-times

Observation
Date		 Mid-time Time format Reference O-C
minutes
2011-07-21 2455764.34602 ± 0.00022 HJD_UTC Hellier et al. 2012 0.0 ± 0.3
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