exoclock

HAT-P-57b

Discovered by: Hartman et al. 2015

The Star
Simbad
GAIA
2MASS
BD+10 3472
DR2 4483640815570090368
J18185842+1035502
RA 18:18:58.4251 DEC +10:35:50.127
Parallax
3.545 mas
P.M. RA
-4.599 mas/y
P.M. DEC
-14.146 mas/y
MagV
10.64
MagR*
10.248
MagI
10.007
MagJ
9.67
MagH
9.497
MagK
9.433
MagG
10.425
MagGBP
10.663
MagGRP
10.07
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2457159.6765 ± 0.0006 BJDTDB
Period
2.4652946 ± 7e-07 days

Transit Parameters
Hartman et al. 2015
Rp/Rs
0.0968 ± 0.0015
a/Rs
5.83 +0.07 -0.12
i
88.3 +0.8 -0.8 deg
e
-
ω
- deg
DepthR*
11.93 mmag
Duration*
3.52 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Hartman et al. 2015
Teff
7500.0 +250.0 -250.0 K
Log(g)
4.25 +0.02 -0.02 cm/s2
Fe/H
-0.25 +0.25 -0.25 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes
LOW
9 (5)

1

0.0±0.5

HAT-P-57b


ExoClock Observations

Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2022-08-03 Chiahui Wang
NTNU ES Observatory
RCOS 16" w/CCDT67 f/5.4
Atik One 6 / R / 14.0
-2.1 ± 2.2
2022-06-15 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
1.1 ± 1.9
2022-06-15 Jean-Pascal Vignes
Deep Sky Chile
Planewave CDK400
QHYCCD 600M / Lum / 60.0
0.7 ± 1.7
2022-05-29 Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 60.0
2.3 ± 3.2
2022-05-29 Leon Bewersdorff
Observatory Kipshoven (BLEW)
GSO Ritchey-Chrétien
QHY268M-PH / V / 60.0
-3.6 ± 2.0
2021-07-14 Maurice Audejean
Chinon observatory - UAI/MPC B92
Newtonian
Audine KAF1600 / R / 90.0
2.1 ± 1.4
2020-07-29 Stephen M. Brincat
Flarestar Observatory - MPC Code:171
Meade SCT
Moravian G2-1600 / V / 120.0
3.8 ± 2.3 - Data available
2020-05-12 Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0
0.6 ± 0.9 - Data available
2019-06-29 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / V / 60.0
-1.9 ± 1.0 - Data available


Literature Mid-times

Observation
Date
Mid-time Time format Reference O-C
minutes
2009-10-08 2455113.48127 ± 0.00048 BJD_UTC Hartman et al. 2015 0.1 ± 0.7
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