exoclock

WASP-89b (MEDIUM)

Discovered by: Hellier et al. 2015

The Star
Simbad
GAIA
2MASS
WASP-89
DR2 6857756246957592320
J20553599-1858159
RA 20:55:35.9893 DEC -18:58:16.047
Parallax
3.409 mas
P.M. RA
15.433 mas/y
P.M. DEC
-65.964 mas/y
MagV
13.1
MagR*
12.73
MagI*
12.105
MagJ
11.546
MagH
11.094
MagK
11.004
MagG
12.989
MagGBP
13.491
MagGRP
12.348
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2456905.15681 ± 0.00012 BJDTDB
Period
3.35641798 ± 3.3e-07 days

Transit Parameters
Hellier et al. 2015
Rp/Rs
0.1221 ± 0.0008
a/Rs**
10.51 +0.08 -0.08
i
89.4 +0.5 -0.5 deg
e
0.193 +0.009 -0.009
ω
28.0 +4.0 -4.0 deg
DepthR*
20.46 mmag
Duration*
2.46 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Hellier et al. 2015
Teff
5130.0 +90.0 -90.0 K
Log(g)
4.51 +0.02 -0.02 cm/s2
Fe/H
0.15 +0.14 -0.14 dex
ExoClock Status
Observing Priority MEDIUM
Minimum aperture 7.21"
Total Observations (Recent) 12 (3)
O-C -0.78 ± 0.3 minutes
ExoClock Observations (Recent) 8 (3)
Space Observations (Recent) 0 (0)
ETD Observations (Recent) 3 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs -

WASP-89b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
WASP-89b (MEDIUM)
2022-10-23
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 180.0
-0.32 ± 2.02
WASP-89b (MEDIUM)
2022-10-23
Jean-Pascal Vignes
Deep Sky Chile
Planewave CDK400
QHYCCD 600M / R / 120.0
-1.26 ± 1.21
WASP-89b (MEDIUM)
2022-07-04
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 180.0
-2.35 ± 0.58
WASP-89b (MEDIUM)
2021-07-20
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 120.0
-1.24 ± 0.72
WASP-89b (MEDIUM)
2021-04-27
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 120.0
-0.88 ± 0.72
WASP-89b (MEDIUM)
2020-09-11
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Clear / 120.0
0.02 ± 0.72
WASP-89b (MEDIUM)
2020-08-11
Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / R / 30.0
0.11 ± 2.02
WASP-89b (MEDIUM)
2020-07-16
Francois Regembal
HRTobs
Astrosib RC360
SBIG STX 16803 / Lum / 180.0
2.62 ± 2.16

ETD Observations

Planet
Observation Date
Observer(s) ETD link O-C
minutes
WASP-89b (MEDIUM)
2021-09-01
F. Lomoz1630562571-2.58 ± 2.88
WASP-89b (MEDIUM)
2021-07-10
Eduardo Fern├índez, Romina P. Di Sisto16262919291.29 ± 0.58
WASP-89b (MEDIUM)
2017-07-21
Phil Evans1500692105-0.49 ± 1.15

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2012-10-06 Hellier et al. 2015 0.01 ± 0.17
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