exoclock

MASCARA-4b (HIGH)

Discovered by: Dorval et al. 2020

The Star
Simbad
GAIA
2MASS
HD 85628
DR2 5245968236116294016
J09501920-6606500
RA 09:50:19.2005 DEC -66:06:49.892
Parallax
5.83 mas
P.M. RA
6.051 mas/y
P.M. DEC
-15.398 mas/y
MagV
8.19
MagR*
8.088
MagI*
7.955
MagJ
7.837
MagH
7.785
MagK
7.75
MagG
8.174
MagGBP
8.283
MagGRP
8.028
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2459321.97544 ± 6.3e-05 BJDTDB
Period
2.8240759 ± 5.3e-06 days

Transit Parameters
Dorval et al. 2020
Rp/Rs
0.08 ± 0.004
a/Rs**
5.97 +0.03 -0.03
i
88.5 +0.01 -0.01 deg
e
-
ω
- deg
DepthR*
8.11 mmag
Duration*
3.88 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Dorval et al. 2020
Teff
7800.0 +200.0 -200.0 K
Log(g)
4.1 +0.05 -0.05 cm/s2
Fe/H
0.0 +0.0 -0.0 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 5.0"
Total Observations (Recent) 19 (0)
O-C -2.68 ± 1.83 minutes
ExoClock Observations (Recent) 2 (0)
Space Observations (Recent) 16 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.086741 ± 9.1e-05

MASCARA-4b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
MASCARA-4b (HIGH)
2022-04-28
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 40.0
-1.49 ± 2.3
MASCARA-4b (HIGH)
2022-04-11
Jean-Pascal Vignes
Deep Sky Chile
Planewave CDK400
QHYCCD 600M / R / 10.0
-4.72 ± 3.02

Space Observations

Planet
Observation Date
Mission O-C
minutes
MASCARA-4b (HIGH)
2021-05-24
TESS0.08 ± 0.26
MASCARA-4b (HIGH)
2021-05-21
TESS0.1 ± 0.29
MASCARA-4b (HIGH)
2021-05-18
TESS-0.38 ± 0.27
MASCARA-4b (HIGH)
2021-05-15
TESS-0.56 ± 0.27
MASCARA-4b (HIGH)
2021-05-10
TESS0.25 ± 0.27
MASCARA-4b (HIGH)
2021-05-07
TESS0.26 ± 0.26
MASCARA-4b (HIGH)
2021-05-04
TESS0.24 ± 0.29
MASCARA-4b (HIGH)
2021-05-01
TESS0.53 ± 0.29
MASCARA-4b (HIGH)
2021-03-31
TESS0.01 ± 0.32
MASCARA-4b (HIGH)
2021-03-28
TESS0.0 ± 0.3
MASCARA-4b (HIGH)
2021-03-25
TESS-0.49 ± 0.27
MASCARA-4b (HIGH)
2021-03-23
TESS-0.21 ± 0.27
MASCARA-4b (HIGH)
2021-03-17
TESS0.41 ± 0.26
MASCARA-4b (HIGH)
2021-03-14
TESS-0.52 ± 0.27
MASCARA-4b (HIGH)
2021-03-11
TESS-0.13 ± 0.27
MASCARA-4b (HIGH)
2021-03-08
TESS0.59 ± 0.3

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2019-01-22 Dorval et al. 2020 0.71 ± 4.32
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