exoclock

TOI-1670c (ALERT)

Discovered by: Tran et al. 2022

The Star
Simbad
GAIA
2MASS
TYC 4424-943-1
DR2 1651911084230149248
J17160415+7209402
RA 17:16:04.1608 DEC +72:09:40.173
Parallax
5.921 mas
P.M. RA
-6.094 mas/y
P.M. DEC
5.154 mas/y
MagV
9.89
MagR*
9.627
MagI*
9.316
MagJ
8.968
MagH
8.754
MagK
8.724
MagG
9.819
MagGBP
10.091
MagGRP
9.426
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2459402.88385 ± 0.00029 BJDTDB
Period
40.750116 ± 5.2e-05 days

Transit Parameters
Tran et al. 2022
Rp/Rs
0.077 ± 0.002
a/Rs
40.68 +0.66 -0.66
i
88.84 +0.04 -0.04 deg
e
0.09 +0.05 -0.04
ω
105.5 +28.6 -29.4 deg
DepthR*
6.48 mmag
Duration*
5.41 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Tran et al. 2022
Teff
6170.0 +61.0 -61.0 K
Log(g)
4.29 +0.11 -0.11 cm/s2
Fe/H
0.09 +0.07 -0.07 dex
ExoClock Status
Observing Priority ALERT
Minimum aperture 5.77"
Total Observations (Recent) 16 (3)
O-C -26.57 ± 3.63 minutes
ExoClock Observations (Recent) 3 (3)
Space Observations (Recent) 11 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 2 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.0765 ± 0.00024

TOI-1670c


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
TOI-1670c (ALERT)
2025-10-02
Michael Nezel
Celle Observatory
CDK 14
QHY 268M / R / 60.0
-23.56 ± 5.47
TOI-1670c (ALERT)
2025-10-02
Fabio Filippi
OPLA
Newtonian
Atik 414ex / R / 20.0
-25.57 ± 9.07
TOI-1670c (ALERT)
2025-10-02
Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / R / 240.0
-30.32 ± 5.76

Space Observations

Planet
Observation Date
Mission O-C
minutes
TOI-1670c (ALERT)
2022-12-19
TESS2.55 ± 1.07
TOI-1670c (ALERT)
2022-05-29
TESS-2.96 ± 1.25
TOI-1670c (ALERT)
2022-04-18
TESS-1.6 ± 1.21
TOI-1670c (ALERT)
2022-03-08
TESS-1.35 ± 1.07
TOI-1670c (ALERT)
2022-01-27
TESS-3.24 ± 1.11
TOI-1670c (ALERT)
2021-08-17
TESS-3.52 ± 1.09
TOI-1670c (ALERT)
2021-07-07
TESS1.24 ± 1.12
TOI-1670c (ALERT)
2020-05-25
TESS-2.43 ± 1.12
TOI-1670c (ALERT)
2020-04-15
TESS-1.09 ± 1.08
TOI-1670c (ALERT)
2020-01-24
TESS-0.48 ± 1.07
TOI-1670c (ALERT)
2019-12-14
TESS1.17 ± 1.02

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2021-07-07 Lubin et al. 2023 1.21 ± 0.49
2021-07-07 Lubin et al. 2023 0.4 ± 0.35
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