exoclock
exoclock
WASP-77Ab
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. 2020
Mid-time
2456224.05817 ± 0.00017 BJDTDB
Period
1.3600295 ± 3e-07 days

Transit Parameters
Maxted et al. 2013
Rp/Rs
0.1301 ± 0.0007
a/Rs
5.73 +0.07 -0.07
i
89.4 +0.4 -0.7 deg
e
-
ω
- deg
DepthR*
22.93 mmag
Duration*
2.06 hours
* calculated from the other parameters, using PyLightcurve

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
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
LOW
17 (1)
-0.7±0.3
2
WASP-77Ab


ExoClock Observations
Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2021-08-30 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
-1.1 ± 0.7
2020-11-25 Martin Smith
Heathwood Road
Skywatcher 120mm ED Apochromatic
Atik 414 ex / R / 20.0
-1.0 ± 3.2
2020-11-06 Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / I / 240.0
-0.2 ± 1.2
2020-10-30 Francois Regembal
HRTobs
Astrosib RC360
SBIG STX 16803 / Lum / 60.0
1.3 ± 1.3
2020-10-26 Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 10.0
-3.8 ± 1.9
2020-10-22 Nikolaos Paschalis
Nunki Observatory
Officina Stellare RILA 400
SBIG STXL 11002 / R / 60.0
-0.2 ± 2.4
2020-10-16 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
0.2 ± 1.3
2020-10-09 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
-4.5 ± 1.0
2020-08-06 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
-1.5 ± 0.7
2020-01-07 Martin Fowler
MicroObservatory Cecilia
MicroObservatory robotic telescope
KAF 1402ME / Clear / 60.0
1.5 ± 2.0 - Data available
2020-01-01 Pavel Pintr
Horni Halze
Celestron C9.25 with Hyperstar f2.2
ASI ZWO 1600 MONO / R / 180.0
-1.3 ± 1.3 - Data available
2019-12-17 Dimitrios Deligeorgopoulos
Artemis Observatory
GSO RC
Atik 16 HR / R / 60.0
-2.3 ± 1.2 - Data available
2019-12-02 Alessandro Nastasi
Galhassin Robotic Telescope (GRT)
Officina Stellare RiLa 400
FLI ProLine 16803 / R / 40.0
-2.0 ± 2.6 - Data available
2019-11-02 Alessandro Nastasi
Galhassin Robotic Telescope (GRT)
Officina Stellare RiLa 400
FLI ProLine 16803 / R / 60.0
2.0 ± 0.9 - Data available
2019-02-14 lionel rousselot
lroussel
Newton
ZWO 1600 monochrome / Clear / 90.0
1.8 ± 1.4
2016-11-09 Marc Deldem
Les Barres Observatory
Celestron C8
SBIG ST8-XME / Clear / 80.0
1.2 ± 2.0 - Data available
2015-12-20 Antonio Marino
UAN c/o INAF-Osservatorio Astronomico di Capodimonte, Naples ITALY
SC11
CCD Atik 314L / Clear / 90.0
4.3 ± 2.6 - Data available


Literature Mid-times
Observation
Date
Mid-time Time format Reference O-C
minutes
2012-12-10 2456271.65804 ± 0.00038 BJD_UTC Turner et al. 2016 -0.6 ± 0.5
2011-11-04 2455870.44977 ± 0.00014 BJD_UTC Maxted et al. 2013 0.1 ± 0.2
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