exoclock

TOI-1789b (HIGH)

Discovered by: Khandelwal et al. 2021

The Star
Simbad
GAIA
2MASS
HD 82139
DR2 646125297938578944
J09305841+2632246
RA 09:30:58.4266 DEC +26:32:24.595
Parallax
4.337 mas
P.M. RA
-7.999 mas/y
P.M. DEC
-39.545 mas/y
MagV
9.72
MagR*
9.373
MagI*
9.061
MagJ
8.672
MagH
8.41
MagK
8.345
MagG
9.584
MagGBP
9.905
MagGRP
9.141
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2459383.83993 ± 0.00028 BJDTDB
Period
3.2087183 ± 3.3e-06 days

Transit Parameters
Khandelwal et al. 2021
Rp/Rs
0.068 ± 0.011
a/Rs
4.83 +0.11 -0.16
i
78.41 +0.36 -0.58 deg
e
-
ω
- deg
DepthR*
2.72 mmag
Duration*
2.31 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Khandelwal et al. 2021
Teff
5991.0 +55.0 -55.0 K
Log(g)
3.94 +0.02 -0.04 cm/s2
Fe/H
0.373 +0.071 -0.086 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 15.34"
Total Observations (Recent) 23 (1)
O-C -9.52 ± 1.78 minutes
ExoClock Observations (Recent) 3 (1)
Space Observations (Recent) 19 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.06601 ± 0.00063

TOI-1789b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
TOI-1789b (HIGH)
2024-01-20
Matthieu Bachschmidt
Gonachon
Celestron C11
SBIG ST8XME / R / 90.0
-21.79 ± 5.9
TOI-1789b (HIGH)
2023-04-19
Synchronous Working-Group
Multiple
Multiple
Multiple / R / 45.0
-8.29 ± 1.87
TOI-1789b (HIGH)
2022-04-15
Synchronous Working-Group
Multiple
Multiple
Multiple / R / 30.0
-1.08 ± 2.02

Space Observations

Planet
Observation Date
Mission O-C
minutes
TOI-1789b (HIGH)
2021-12-27
TESS0.97 ± 2.16
TOI-1789b (HIGH)
2021-12-24
TESS-0.73 ± 2.02
TOI-1789b (HIGH)
2021-12-21
TESS3.61 ± 2.02
TOI-1789b (HIGH)
2021-12-15
TESS-2.67 ± 2.16
TOI-1789b (HIGH)
2021-12-11
TESS-3.36 ± 2.59
TOI-1789b (HIGH)
2021-12-08
TESS1.7 ± 2.3
TOI-1789b (HIGH)
2021-12-05
TESS-1.44 ± 2.16
TOI-1789b (HIGH)
2021-11-28
TESS0.92 ± 1.73
TOI-1789b (HIGH)
2021-11-25
TESS-0.35 ± 1.87
TOI-1789b (HIGH)
2021-11-22
TESS-3.21 ± 2.3
TOI-1789b (HIGH)
2021-11-16
TESS3.47 ± 2.45
TOI-1789b (HIGH)
2021-11-12
TESS0.04 ± 2.3
TOI-1789b (HIGH)
2021-11-09
TESS3.23 ± 2.16
TOI-1789b (HIGH)
2021-11-03
TESS0.41 ± 2.45
TOI-1789b (HIGH)
2021-10-31
TESS-0.86 ± 2.02
TOI-1789b (HIGH)
2021-10-27
TESS-1.27 ± 2.3
TOI-1789b (HIGH)
2021-10-21
TESS-2.51 ± 2.02
TOI-1789b (HIGH)
2021-10-18
TESS2.7 ± 2.16
TOI-1789b (HIGH)
2021-10-15
TESS-1.02 ± 2.16

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2020-01-25 Khandelwal et al. 2022 0.03 ± 0.89
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