exoclock

WASP-85Ab (LOW)

Discovered by: Brown et al. 2014

The Star
Simbad
GAIA
2MASS		 BD+07 2474
DR2 3909745223886018432
J11433800+0633494
RA 11:43:38.0162 DEC +06:33:49.419
Parallax
7.02 mas		 P.M. RA
-77.24 mas/y		 P.M. DEC
11.016 mas/y
MagV
10.41		 MagR
10.34		 MagI*
9.625		 MagJ
9.275		 MagH
8.925		 MagK
8.733
MagG
10.624		 MagGBP
10.902		 MagGRP
9.993
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2456969.633888 ± 1.6e-05 BJDTDB
Period
2.655674329 ± 7.3e-08 days
Transit Parameters
Brown et al. 2014
Rp/Rs
0.136814 ± 3.7e-05		 a/Rs**
8.74 +0.12 -0.08
 i
89.73 +0.01 -0.01 deg
e
-		 ω
- deg
DepthR*
25.23 mmag		 Duration*
2.64 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Brown et al. 2014
Teff
5685.0 +55.0 -55.0 K
 Log(g)
4.48 +0.11 -0.11 cm/s2
 Fe/H
0.08 +0.1 -0.1 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 74 (12)
O-C -0.39 ± 0.34 minutes
ExoClock Observations (Recent) 31 (12)
Space Observations (Recent) 37 (0)
ETD Observations (Recent) 4 (0)
Literature Mid-times (Recent) 2 (0)
Kepler Rp/Rs 0.11015 ± 0.0001
TESS Rp/Rs 0.13092 ± 0.00018

WASP-85Ab


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-85Ab (LOW)
2026-03-28		John Savage
Rushay Farm Z42		Skywatcher Esprit 150
ZWO ASI 6200MM / Lum / 30.0		2.47 ± 1.73
WASP-85Ab (LOW)
2026-03-20		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 60.0		3.03 ± 1.37
WASP-85Ab (LOW)
2026-03-20		Gianfranco Ferrini
K83		Meade
Atik 383L / R / 60.0		0.54 ± 0.89
WASP-85Ab (LOW)
2026-03-20		David Wright
Goveryk (private observatory)		Ritchey-Chretien
QSI 683WSG-8 / R / 120.0		-3.84 ± 2.3
WASP-85Ab (LOW)
2026-03-12		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / R / 60.0		7.72 ± 1.58
WASP-85Ab (LOW)
2026-03-12		Martin Czarnowski
Monteaup		Newtonien
ATR585M / R / 8.0		4.69 ± 1.73
WASP-85Ab (LOW)
2026-03-12		Philippe Langlet
NDD CRUET		Célestron 8
ASI294MM PRO / Lum / 60.0		-0.61 ± 1.35
WASP-85Ab (LOW)
2026-03-12		Patrick Farizy
Private Observatory , France		Celestron 8 Schmidt-Cassegrain
ToupTek G3CMOS585C / Clear / 60.0		-0.64 ± 1.09
WASP-85Ab (LOW)
2026-03-12		elisa goni
hibisscus		sky watcher Newtonian telescope 150/750 Dual Speed
zwo 533mc color camera / Clear / 20.0		-1.21 ± 1.35
WASP-85Ab (LOW)
2026-03-12		Gerard Tartalo
Dark Energy Observatory		Ts RC8" Carbon
Player One Ares M (imx533M) / rpr / 240.0		-2.65 ± 1.73
WASP-85Ab (LOW)
2026-03-12		Nikola Antonov
Meshtitsa		Sky-Watcher Explorer PDS
ASI 533MM Pro Mono CMOS / R / 40.0		-2.92 ± 0.73
WASP-85Ab (LOW)
2026-03-12		Daniel BOUYSSE
OAA46500		RC TS-Optics f/6.4
PlayerOne-Poseidon-M / R / 300.0		-4.67 ± 1.58
WASP-85Ab (LOW)
2025-04-30		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 90.0		3.61 ± 2.02
WASP-85Ab (LOW)
2025-02-02		Darryl Madison
Ajijic Observatory		Celestron CPC 800 Edge HD
ZWO2400MC / Clear / 60.0		-8.7 ± 2.3
WASP-85Ab (LOW)
2024-12-29		Yen-Hsing Lin
Starry House Observatory		Mewlon 300 CRS
ASI 6200MM Pro / Lum / 60.0		0.47 ± 1.58
WASP-85Ab (LOW)
2024-04-02		Massimo Zancan
Riccardo		Celestron C11
ASI-1600-MM / Clear / 45.0		1.19 ± 1.32
WASP-85Ab (LOW)
2024-04-02		Zlatko Orbanić
Explorer		Newton Truss 254mm F/3.8
Atik 414 Ex Mono / rpr / 30.0		-0.07 ± 1.27
WASP-85Ab (LOW)
2024-03-20		Hao-Yuan Duan
Taipei Astronomical Museum, Taiwan		Takahashi TOA-130
QHY163M / R / 30.0		-0.9 ± 1.87
WASP-85Ab (LOW)
2024-03-02		Deborah Smith
El Olivar, Gergal, Spain		William Optics GT81
QHY9 / Clear / 60.0		0.3 ± 1.28
WASP-85Ab (LOW)
2023-02-03		Marco Stefanini
Osservatorio Aldebaran		Ritchey-Chretien Altair Astro
Atik 4000 LE / Lum / 250.0		-1.42 ± 1.31
WASP-85Ab (LOW)
2022-06-16		Leandro de Almeida
Observatório do Pico dos Dias		0.6m Boller & Chivens f/13.49
Andor Ixon 4335 CCD / I / 30.0		-2.9 ± 1.32
WASP-85Ab (LOW)
2022-05-18		Louw Ferreira
PESCOPE		Celestron 9.25 CPC on wedge
Sbig 8300 STF / V / 20.0		-3.63 ± 3.17
WASP-85Ab (LOW)
2022-05-16		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-1.36 ± 1.01
WASP-85Ab (LOW)
2022-02-28		Michael Irzyk
Melun		C14
H694 / Clear / 6.0		4.19 ± 1.44
WASP-85Ab (LOW)
2021-05-11		Jean-Louis Naudin
Gatinais French Observatory (GFO)		Orion Astrograph 8" f/3.9
ZWO ASI 290 MC / Clear / 40.0		4.88 ± 3.17
WASP-85Ab (LOW)
2021-04-26		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		2.78 ± 1.15
WASP-85Ab (LOW)
2021-03-09		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.68 ± 0.72
WASP-85Ab (LOW)
2020-04-03		Martin Fowler
MicroObservatory Cecilia		MicroObservatory robotic telescope
KAF 1402ME / Clear / 60.0		3.29 ± 2.88
WASP-85Ab (LOW)
2020-03-28		Fabio Mortari
Hypatia Observatory		Newton 250mm f/4.9
Sbig ST8-XE / Lum / 50.0		2.5 ± 2.16
WASP-85Ab (LOW)
2020-03-28		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Clear / 120.0		-2.69 ± 0.86
WASP-85Ab (LOW)
2017-03-14		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 60.0		-1.15 ± 1.01

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-85Ab (LOW)
2023-12-05		TESS-0.36 ± 0.32
WASP-85Ab (LOW)
2023-12-02		TESS-0.48 ± 0.35
WASP-85Ab (LOW)
2023-11-30		TESS0.29 ± 0.36
WASP-85Ab (LOW)
2023-11-27		TESS0.39 ± 0.39
WASP-85Ab (LOW)
2023-11-22		TESS-0.26 ± 0.33
WASP-85Ab (LOW)
2023-11-19		TESS-0.9 ± 0.36
WASP-85Ab (LOW)
2023-11-16		TESS0.06 ± 0.39
WASP-85Ab (LOW)
2023-11-14		TESS-0.31 ± 0.42
WASP-85Ab (LOW)
2021-12-29		TESS0.16 ± 0.32
WASP-85Ab (LOW)
2021-12-26		TESS-0.55 ± 0.33
WASP-85Ab (LOW)
2021-12-23		TESS0.4 ± 0.32
WASP-85Ab (LOW)
2021-12-21		TESS0.12 ± 0.32
WASP-85Ab (LOW)
2021-12-18		TESS0.56 ± 0.35
WASP-85Ab (LOW)
2021-12-15		TESS0.16 ± 0.35
WASP-85Ab (LOW)
2021-12-13		TESS-0.03 ± 0.35
WASP-85Ab (LOW)
2021-12-10		TESS0.19 ± 0.36
WASP-85Ab (LOW)
2021-12-07		TESS0.14 ± 0.39
WASP-85Ab (LOW)
2021-12-05		TESS-0.19 ± 0.36
WASP-85Ab (LOW)
2021-11-29		TESS0.03 ± 0.35
WASP-85Ab (LOW)
2021-11-27		TESS0.59 ± 0.37
WASP-85Ab (LOW)
2021-11-24		TESS0.02 ± 0.39
WASP-85Ab (LOW)
2021-11-21		TESS0.05 ± 0.39
WASP-85Ab (LOW)
2021-11-19		TESS-0.09 ± 0.33
WASP-85Ab (LOW)
2021-11-16		TESS0.09 ± 0.33
WASP-85Ab (LOW)
2021-11-13		TESS-0.63 ± 0.39
WASP-85Ab (LOW)
2021-11-11		TESS0.03 ± 0.35
WASP-85Ab (LOW)
2021-11-08		TESS0.03 ± 0.37
WASP-85Ab (LOW)
2014-08-07		K2-0.53 ± 0.45
WASP-85Ab (LOW)
2014-07-22		K2-0.23 ± 0.4
WASP-85Ab (LOW)
2014-07-14		K21.46 ± 0.3
WASP-85Ab (LOW)
2014-07-08		K20.11 ± 0.12
WASP-85Ab (LOW)
2014-07-06		K2-0.16 ± 0.12
WASP-85Ab (LOW)
2014-06-25		K20.08 ± 0.24
WASP-85Ab (LOW)
2014-06-20		K20.97 ± 0.45
WASP-85Ab (LOW)
2014-06-12		K20.44 ± 0.86
WASP-85Ab (LOW)
2014-06-07		K2-0.06 ± 0.14
WASP-85Ab (LOW)
2014-06-04		K20.15 ± 0.16

ETD Observations
Planet
Observation Date		 Observer(s) ETD link O-C
minutes
WASP-85Ab (LOW)
2022-03-23		F. Lomoz16481097521.24 ± 1.02
WASP-85Ab (LOW)
2022-02-28		Miguel Angel Alava16478056881.31 ± 1.44
WASP-85Ab (LOW)
2022-02-28		PANTACCHINI Christian1646501553-2.29 ± 3.74
WASP-85Ab (LOW)
2020-04-21		Nosáľ P.15881696071.68 ± 2.45

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2017-01-31 Stefansson et al. 2017 1.5 ± 0.24
2014-07-06 Brown et al. 2014 -0.01 ± 0.01
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