exoclock

WASP-77Ab (LOW)

Discovered by: Maxted et al. 2013

The Star
Simbad
GAIA
2MASS
BD-07 436
DR2 5178405479960844160
J02283722-0703384
RA 02:28:37.226 DEC -07:03:38.39
Parallax
9.482 mas
P.M. RA
93.889 mas/y
P.M. DEC
-1.567 mas/y
MagV
10.12
MagR
10.23
MagI*
9.344
MagJ
8.766
MagH
8.374
MagK
8.405
MagG
10.097
MagGBP
10.485
MagGRP
9.586
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2458693.870688 ± 3.9e-05 BJDTDB
Period
1.360028949 ± 7.5e-08 days

Transit Parameters
Maxted et al. 2013
Rp/Rs
0.1301 ± 0.0007
a/Rs**
5.41 +0.04 -0.04
i
89.4 +0.4 -0.7 deg
e
-
ω
- deg
DepthR*
22.93 mmag
Duration*
2.18 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Maxted et al. 2013
Teff
5500.0 +80.0 -80.0 K
Log(g)
4.33 +0.08 -0.08 cm/s2
Fe/H
0.0 +0.11 -0.11 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 64 (7)
O-C 0.55 ± 0.34 minutes
ExoClock Observations (Recent) 28 (7)
Space Observations (Recent) 30 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 6 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.12796 ± 0.00013

WASP-77Ab


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
WASP-77Ab (LOW)
2022-11-26
James Eke
Private
William Optic Z61
ZWO ASI1600MM / Lum / 35.0
1.15 ± 0.95
WASP-77Ab (LOW)
2022-10-25
Bernhard Wenzel
Vienna
Newton A=30 cm / F=1,2 m
DSLR Canon 200 D - 14 Bit / Lum / 100.0
-2.02 ± 1.73
WASP-77Ab (LOW)
2022-10-19
Mercedes Correa
Teide Observatory
IAC80
Camelot2 / R / 60.0
0.51 ± 0.62
WASP-77Ab (LOW)
2022-01-20
Andre Kovacs
MicroObservatory Cecillia
152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0
-3.12 ± 3.6
WASP-77Ab (LOW)
2022-01-18
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0
1.38 ± 1.01
WASP-77Ab (LOW)
2022-01-05
Andre Kovacs
MicroObservatory Cecillia
152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0
2.95 ± 2.88
WASP-77Ab (LOW)
2021-12-19
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 40.0
2.88 ± 1.87
WASP-77Ab (LOW)
2021-11-04
Dominique DANIEL
La Montjoie
Celestron CGX C8 XLT
Camera CMOS ZWO ASI294MC pro (color) / Clear / 77.0
5.69 ± 2.16
WASP-77Ab (LOW)
2021-10-06
Aziz Ettahar Kaeouach
High Atlas Observatory
Celestron C11 hd
Zwo asi 294 mm pro / R / 60.0
-1.8 ± 1.25
WASP-77Ab (LOW)
2021-09-29
Andre Kovacs
MicroObservatory Cecillia
152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0
-2.69 ± 2.02
WASP-77Ab (LOW)
2021-08-30
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
0.54 ± 0.72
WASP-77Ab (LOW)
2020-11-25
Martin Smith
Heathwood Road
Skywatcher 120mm ED Apochromatic
Atik 414 ex / R / 20.0
1.55 ± 2.02
WASP-77Ab (LOW)
2020-11-06
Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / I / 240.0
2.13 ± 1.15
WASP-77Ab (LOW)
2020-10-31
Francois Regembal
HRTobs
Astrosib RC360
SBIG STX 16803 / Lum / 60.0
3.06 ± 1.15
WASP-77Ab (LOW)
2020-10-26
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 10.0
-1.56 ± 2.02
WASP-77Ab (LOW)
2020-10-22
Nikolaos Paschalis
Nunki Observatory
Officina Stellare RILA 400
SBIG STXL 11002 / R / 60.0
0.15 ± 2.16
WASP-77Ab (LOW)
2020-10-16
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
0.21 ± 1.15
WASP-77Ab (LOW)
2020-10-09
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
-1.31 ± 1.01
WASP-77Ab (LOW)
2020-08-06
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
0.79 ± 0.72
WASP-77Ab (LOW)
2020-01-07
Martin Fowler
MicroObservatory Cecilia
MicroObservatory robotic telescope
KAF 1402ME / Clear / 60.0
1.68 ± 2.16
WASP-77Ab (LOW)
2020-01-01
Pavel Pintr
Horni Halze
Celestron C9.25 with Hyperstar f2.2
ASI ZWO 1600 MONO / R / 180.0
0.7 ± 1.01
WASP-77Ab (LOW)
2019-12-17
Dimitrios Deligeorgopoulos
Artemis Observatory
GSO RC
Atik 16 HR / R / 60.0
0.0 ± 1.01
WASP-77Ab (LOW)
2019-12-02
Alessandro Nastasi
Galhassin Robotic Telescope 1 (GRT1)
Officina Stellare RiLa 400
FLI ProLine 16803 / R / 40.0
-0.4 ± 0.72
WASP-77Ab (LOW)
2019-11-02
Alessandro Nastasi
Galhassin Robotic Telescope 1 (GRT1)
Officina Stellare RiLa 400
FLI ProLine 16803 / R / 60.0
1.52 ± 1.15
WASP-77Ab (LOW)
2019-02-14
Lionel Rousselot
Private observatory Vierzon
Newton
ZWO 1600 monochrome / Clear / 90.0
3.62 ± 1.3
WASP-77Ab (LOW)
2018-11-08
Lorenzo Betti
Osservatorio Polifunzionale del Chianti
RC-80cm
Moravian G2 - KAF1603ME / AstrodonExoPlanet-BB / 40.0
-2.31 ± 0.43
WASP-77Ab (LOW)
2016-11-09
Marc Deldem
Les Barres Observatory
Celestron C8
SBIG ST8-XME / Clear / 80.0
0.74 ± 1.87
WASP-77Ab (LOW)
2015-12-20
Antonio Marino
UAN c/o INAF-Osservatorio Astronomico di Capodimonte, Naples ITALY
SC11
CCD Atik 314L / Clear / 90.0
6.24 ± 2.59

Space Observations

Planet
Observation Date
Mission O-C
minutes
WASP-77Ab (LOW)
2020-11-15
TESS0.16 ± 0.22
WASP-77Ab (LOW)
2020-11-13
TESS-0.15 ± 0.23
WASP-77Ab (LOW)
2020-11-12
TESS0.34 ± 0.24
WASP-77Ab (LOW)
2020-11-10
TESS0.18 ± 0.26
WASP-77Ab (LOW)
2020-11-09
TESS-0.14 ± 0.26
WASP-77Ab (LOW)
2020-11-08
TESS-0.01 ± 0.22
WASP-77Ab (LOW)
2020-11-06
TESS0.25 ± 0.22
WASP-77Ab (LOW)
2020-11-05
TESS0.06 ± 0.22
WASP-77Ab (LOW)
2020-11-01
TESS-0.33 ± 0.2
WASP-77Ab (LOW)
2020-10-31
TESS-0.25 ± 0.23
WASP-77Ab (LOW)
2020-10-29
TESS0.38 ± 0.26
WASP-77Ab (LOW)
2020-10-28
TESS-0.54 ± 0.22
WASP-77Ab (LOW)
2020-10-26
TESS-0.12 ± 0.23
WASP-77Ab (LOW)
2020-10-25
TESS-0.07 ± 0.23
WASP-77Ab (LOW)
2020-10-24
TESS-0.03 ± 0.22
WASP-77Ab (LOW)
2020-10-22
TESS-0.17 ± 0.19
WASP-77Ab (LOW)
2018-11-12
TESS0.12 ± 0.24
WASP-77Ab (LOW)
2018-11-11
TESS0.06 ± 0.23
WASP-77Ab (LOW)
2018-11-10
TESS0.19 ± 0.23
WASP-77Ab (LOW)
2018-11-08
TESS-0.27 ± 0.23
WASP-77Ab (LOW)
2018-11-07
TESS-0.18 ± 0.22
WASP-77Ab (LOW)
2018-11-06
TESS-0.35 ± 0.23
WASP-77Ab (LOW)
2018-11-04
TESS0.08 ± 0.23
WASP-77Ab (LOW)
2018-11-03
TESS0.08 ± 0.24
WASP-77Ab (LOW)
2018-10-30
TESS0.22 ± 0.26
WASP-77Ab (LOW)
2018-10-26
TESS-0.16 ± 0.22
WASP-77Ab (LOW)
2018-10-24
TESS0.39 ± 0.22
WASP-77Ab (LOW)
2018-10-23
TESS0.11 ± 0.22
WASP-77Ab (LOW)
2018-10-22
TESS0.51 ± 0.22
WASP-77Ab (LOW)
2018-10-20
TESS0.08 ± 0.23

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2016-10-08 Cortés-Zuleta et al. 2020 2.38 ± 2.8
2016-09-27 Cortés-Zuleta et al. 2020 -1.75 ± 4.3
2015-10-04 Cortés-Zuleta et al. 2020 0.25 ± 2.3
2015-09-30 Cortés-Zuleta et al. 2020 2.41 ± 2.5
2012-12-10 Turner et al. 2016 -0.45 ± 0.55
2011-11-04 Maxted et al. 2013 -0.07 ± 0.2
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