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HAT-P-18b

Discovered by: Hartman et al. 2011
The Star
Simbad
GAIA
2MASS		 HAT-P-18
DR2 1334573817793362560
J17052315+3300450
RA 17:05:23.1475 DEC +33:00:44.939
Parallax
6.167 mas		 P.M. RA
-14.073 mas/y		 P.M. DEC
-36.689 mas/y
MagV
12.759		 MagR
12.61		 MagI*
11.659		 MagJ
10.822		 MagH
10.34		 MagK
10.234
MagG
12.368		 MagGBP
12.939		 MagGRP
11.681
* calculated from GAIA magnitudes

Ephemeris - Not verified False
Seeliger et al. 2015
Mid-time
2454715.0225 ± 0.0004 BJDTDB
Period
5.508029 ± 4e-06 days
Transit Parameters
Kirk et al. 2017
Rp/Rs
0.1356 ± 0.0028		 a/Rs
16.39 +0.24 -0.24
 i
88.53 +0.16 -0.16 deg
e
-		 ω
- deg
DepthR*
24.28 mmag		 Duration*
2.71 hours
* calculated from the other parameters, using PyLightcurve
Limb Darkening Parameters
Hartman et al. 2011
Teff
4803.0 +80.0 -80.0 K
 Log(g)
4.57 +0.04 -0.04 cm/s2
 Fe/H
0.1 +0.08 -0.08 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times		 MEDIUM
2 (0)
-2.3±1.0
0
HAT-P-18b


ExoClock Observations
Obs. Date O-C (min) Observer
Observatory		 Telescope
Camera / Filter / Exp [s]
2019-02-23 0.1 ± 1.9 Yves Jongen
Rasteau Observatory		 Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
2015-05-06 -3.3 ± 1.2 Marc Deldem
Les Barres Observatory		 Celestron C8
SBIG ST8-XME / Clear / 180.0		 - Data available


Literature Mid-times
Mid-time
(BJDTDB)		 Uncertainty
(days)		 Reference Uploaded by
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