exoclock
exoclock
WASP-81b
Discovered by: Triaud et al. 2017
The Star
Simbad
GAIA
2MASS
WASP-81
DR2 4244243354278985472
J20164989+0317385
RA 20:16:49.8900 DEC +03:17:38.454
Parallax
2.482 mas
P.M. RA
27.196 mas/y
P.M. DEC
-15.319 mas/y
MagV
12.47
MagR
12.37
MagI
11.7
MagJ
11.263
MagH
10.913
MagK
10.892
MagG
12.333
MagGBP
12.679
MagGRP
11.832
* calculated from GAIA magnitudes

Ephemeris - Not verified False
Triaud et al. 2017
Mid-time
2456195.5754 ± 0.00023 BJDTDB
Period
2.7164762 ± 2.3e-06 days

Transit Parameters
Triaud et al. 2017
Rp/Rs
0.112 ± 0.0012
a/Rs
6.56 +0.13 -0.16
i
88.7 +0.9 -0.9 deg
e
-
ω
- deg
DepthR*
16.66 mmag
Duration*
3.5 hours
* calculated from the other parameters, using PyLightcurve

Limb Darkening Parameters
Triaud et al. 2017
Teff
5870.0 +120.0 -120.0 K
Log(g)
4.26 +0.02 -0.03 cm/s2
Fe/H
-0.36 +0.14 -0.14 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
LOW
16 (11)
13.3±0.3
0
WASP-81b


ExoClock Observations
Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2021-07-29 Lionel Rousselot
Vierzon
Newton 250/1200
ZWO 1600 monochrome / R / 120.0
25.9 ± 2.9
2021-07-29 Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / Lum / 240.0
23.6 ± 8.6
2021-07-29 Dim Stouraitis
Galilaios
SCT
SXVF-H9 Starlight-Xpress / Clear / 60.0
20.4 ± 3.5
2021-07-29 Adam Popowicz
Observatory Pyskowice
RC12" GSO
ASI ZWO 1600 MM / ATIK 11000M / R / 120.0
15.8 ± 1.9
2021-07-29 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / g' / 90.0
12.8 ± 2.6
2021-07-29 Carmelo Falco
GAL Hassin Robotic Telescope 2 (GRT2) - Multiband
Giacometti-Fogale RC16 - 2
Andor Apogee Aspen CG16M / R / 90.0
9.6 ± 1.6
2021-07-27 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 120.0
15.2 ± 1.0
2021-07-10 Adam Popowicz
Observatory Pyskowice
RC12" GSO
ASI ZWO 1600 MM / ATIK 11000M / R / 119.0
8.8 ± 2.7
2021-07-08 Anaël Wünsche
El Sauce Observatory
CDK Planewave Chili
Moravian G4 16k / Lum / 120.0
14.4 ± 0.6
2021-06-27 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
15.1 ± 1.6
2021-06-10 Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 93.0
20.8 ± 3.2
2020-08-07 Phil Evans
El Sauce
Planewave CDK14
SBIG STT 1603-3 / R / 120.0
12.4 ± 1.3
2020-08-08 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
10.1 ± 1.0
2020-07-28 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
11.5 ± 1.2
2020-07-11 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
11.1 ± 1.2
2020-07-11 Danilo Sedita
Osservatorio Sedita Castrofilippo
RC GSO 14"
Moravian G2-1600 / R / 60.0
10.0 ± 1.9
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