exoclock

LHS3844b (HIGH)

Discovered by: Vanderspek et al. 2019

The Star
Simbad
GAIA
2MASS		 LHS 3844
DR2 6385548541499112448
J22415815-6910089
RA 22:41:58.1173 DEC -69:10:08.320
Parallax
67.155 mas		 P.M. RA
334.357 mas/y		 P.M. DEC
-726.974 mas/y
MagV
15.26		 MagR
13.74		 MagI
11.88		 MagJ
10.046		 MagH
9.477		 MagK
9.145
MagG
13.393		 MagGBP
15.451		 MagGRP
12.052
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458793.74747 ± 4.7e-05 BJDTDB
Period
0.462929699 ± 6.2e-08 days
Transit Parameters
Vanderspek et al. 2019
Rp/Rs
0.0635 ± 0.0009		 a/Rs
7.11 +0.03 -0.03
 i
88.5 +0.5 -0.5 deg
e
-		 ω
- deg
DepthR*
5.6 mmag		 Duration*
0.52 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Vanderspek et al. 2019
Teff
3036.0 +77.0 -77.0 K
 Log(g)
5.06 +0.01 -0.01 cm/s2
 Fe/H
0.0 +0.0 -0.0 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 40.21"
Total Observations (Recent) 158 (0)
O-C -
ExoClock Observations (Recent) 2 (0)
Space Observations (Recent) 143 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 13 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.06691 ± 0.00066

LHS3844b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
LHS3844b (HIGH)
2023-08-08		Thomas Plunkett
Greenhill Observatory		PlaneWave
Apogee Alta U42 / rpr / 200.0		2.1 ± 2.88
LHS3844b (HIGH)
2023-05-02		Magdalena Szkudlarek
Deep Sky Chile - ROTUZ		PlaneWave CDK 20
QHY268M pro / R / 86.0		1.96 ± 1.58

Space Observations
Planet
Observation Date		 Mission O-C
minutes
LHS3844b (HIGH)
2023-08-21		TESS0.4 ± 1.4
LHS3844b (HIGH)
2023-08-20		TESS-3.04 ± 1.17
LHS3844b (HIGH)
2023-08-19		TESS-1.95 ± 2.02
LHS3844b (HIGH)
2023-08-19		TESS-1.25 ± 1.17
LHS3844b (HIGH)
2023-08-17		TESS0.24 ± 1.73
LHS3844b (HIGH)
2023-08-17		TESS1.58 ± 2.59
LHS3844b (HIGH)
2023-08-16		TESS0.67 ± 1.01
LHS3844b (HIGH)
2023-08-15		TESS1.03 ± 1.87
LHS3844b (HIGH)
2023-08-14		TESS-3.45 ± 1.4
LHS3844b (HIGH)
2023-08-14		TESS-8.1 ± 3.6
LHS3844b (HIGH)
2023-08-13		TESS0.87 ± 4.03
LHS3844b (HIGH)
2023-08-12		TESS1.42 ± 1.25
LHS3844b (HIGH)
2023-08-12		TESS-0.14 ± 1.25
LHS3844b (HIGH)
2023-08-08		TESS-3.18 ± 1.21
LHS3844b (HIGH)
2023-08-07		TESS-2.25 ± 1.01
LHS3844b (HIGH)
2023-08-07		TESS-0.94 ± 1.87
LHS3844b (HIGH)
2023-08-05		TESS1.79 ± 2.16
LHS3844b (HIGH)
2023-08-04		TESS1.73 ± 2.16
LHS3844b (HIGH)
2023-08-03		TESS1.05 ± 1.24
LHS3844b (HIGH)
2023-08-02		TESS-0.28 ± 1.37
LHS3844b (HIGH)
2023-08-01		TESS-3.34 ± 1.02
LHS3844b (HIGH)
2023-08-01		TESS-3.26 ± 3.6
LHS3844b (HIGH)
2023-07-31		TESS-2.91 ± 0.95
LHS3844b (HIGH)
2023-07-30		TESS0.08 ± 1.58
LHS3844b (HIGH)
2023-07-24		TESS3.52 ± 4.18
LHS3844b (HIGH)
2023-07-23		TESS1.69 ± 1.58
LHS3844b (HIGH)
2023-07-22		TESS-0.82 ± 1.24
LHS3844b (HIGH)
2023-07-20		TESS1.45 ± 1.41
LHS3844b (HIGH)
2023-07-20		TESS0.3 ± 1.17
LHS3844b (HIGH)
2023-07-19		TESS1.16 ± 1.12
LHS3844b (HIGH)
2023-07-19		TESS-0.81 ± 2.3
LHS3844b (HIGH)
2023-07-17		TESS-1.03 ± 1.09
LHS3844b (HIGH)
2023-07-17		TESS-1.17 ± 3.17
LHS3844b (HIGH)
2023-07-16		TESS-1.27 ± 4.18
LHS3844b (HIGH)
2023-07-15		TESS-1.14 ± 2.02
LHS3844b (HIGH)
2023-07-09		TESS3.98 ± 1.44
LHS3844b (HIGH)
2023-07-09		TESS-0.44 ± 1.58
LHS3844b (HIGH)
2023-07-08		TESS2.48 ± 1.58
LHS3844b (HIGH)
2023-07-08		TESS-0.65 ± 2.3
LHS3844b (HIGH)
2023-07-07		TESS0.66 ± 1.38
LHS3844b (HIGH)
2023-07-07		TESS1.5 ± 0.78
LHS3844b (HIGH)
2023-07-06		TESS1.12 ± 0.76
LHS3844b (HIGH)
2023-07-06		TESS-1.58 ± 2.74
LHS3844b (HIGH)
2023-07-05		TESS-0.68 ± 1.44
LHS3844b (HIGH)
2023-07-05		TESS5.27 ± 4.75
LHS3844b (HIGH)
2023-07-04		TESS2.14 ± 1.58
LHS3844b (HIGH)
2023-07-04		TESS1.28 ± 0.86
LHS3844b (HIGH)
2023-07-03		TESS-3.39 ± 3.46
LHS3844b (HIGH)
2023-07-03		TESS0.88 ± 0.82
LHS3844b (HIGH)
2023-07-02		TESS3.27 ± 1.2
LHS3844b (HIGH)
2023-07-02		TESS-1.24 ± 1.58
LHS3844b (HIGH)
2023-07-01		TESS0.59 ± 1.24
LHS3844b (HIGH)
2020-08-23		TESS-0.07 ± 2.02
LHS3844b (HIGH)
2020-08-22		TESS-1.17 ± 0.94
LHS3844b (HIGH)
2020-08-22		TESS-0.95 ± 1.87
LHS3844b (HIGH)
2020-08-21		TESS0.53 ± 1.01
LHS3844b (HIGH)
2020-08-21		TESS1.62 ± 1.15
LHS3844b (HIGH)
2020-08-20		TESS-0.54 ± 1.58
LHS3844b (HIGH)
2020-08-20		TESS-2.37 ± 1.73
LHS3844b (HIGH)
2020-08-19		TESS-1.72 ± 1.41
LHS3844b (HIGH)
2020-08-18		TESS3.84 ± 1.05
LHS3844b (HIGH)
2020-08-18		TESS-3.78 ± 2.45
LHS3844b (HIGH)
2020-08-17		TESS-0.42 ± 1.87
LHS3844b (HIGH)
2020-08-17		TESS-0.78 ± 0.84
LHS3844b (HIGH)
2020-08-16		TESS0.09 ± 1.73
LHS3844b (HIGH)
2020-08-16		TESS0.47 ± 2.02
LHS3844b (HIGH)
2020-08-15		TESS-1.22 ± 2.3
LHS3844b (HIGH)
2020-08-14		TESS-4.86 ± 0.99
LHS3844b (HIGH)
2020-08-14		TESS0.32 ± 1.38
LHS3844b (HIGH)
2020-08-10		TESS-4.68 ± 5.47
LHS3844b (HIGH)
2020-08-10		TESS4.41 ± 1.18
LHS3844b (HIGH)
2020-08-10		TESS4.91 ± 1.44
LHS3844b (HIGH)
2020-08-09		TESS3.23 ± 1.73
LHS3844b (HIGH)
2020-08-09		TESS-2.78 ± 1.73
LHS3844b (HIGH)
2020-08-08		TESS-1.3 ± 1.87
LHS3844b (HIGH)
2020-08-06		TESS-0.97 ± 1.3
LHS3844b (HIGH)
2020-08-06		TESS-0.31 ± 1.04
LHS3844b (HIGH)
2020-08-05		TESS0.15 ± 2.59
LHS3844b (HIGH)
2020-08-04		TESS0.38 ± 2.3
LHS3844b (HIGH)
2020-08-03		TESS-1.0 ± 1.32
LHS3844b (HIGH)
2020-08-03		TESS-6.01 ± 3.46
LHS3844b (HIGH)
2020-08-01		TESS-3.1 ± 2.3
LHS3844b (HIGH)
2020-07-31		TESS-0.14 ± 1.58
LHS3844b (HIGH)
2020-07-28		TESS0.41 ± 1.73
LHS3844b (HIGH)
2020-07-28		TESS1.08 ± 1.32
LHS3844b (HIGH)
2020-07-28		TESS-1.67 ± 2.3
LHS3844b (HIGH)
2020-07-27		TESS-1.91 ± 7.49
LHS3844b (HIGH)
2020-07-26		TESS-1.68 ± 2.02
LHS3844b (HIGH)
2020-07-26		TESS0.23 ± 1.58
LHS3844b (HIGH)
2020-07-25		TESS1.57 ± 1.32
LHS3844b (HIGH)
2020-07-23		TESS2.36 ± 4.46
LHS3844b (HIGH)
2020-07-22		TESS-0.04 ± 2.74
LHS3844b (HIGH)
2020-07-22		TESS0.27 ± 1.18
LHS3844b (HIGH)
2020-07-21		TESS2.29 ± 4.61
LHS3844b (HIGH)
2020-07-20		TESS-5.98 ± 2.74
LHS3844b (HIGH)
2020-07-19		TESS3.47 ± 3.31
LHS3844b (HIGH)
2020-07-18		TESS-3.4 ± 1.58
LHS3844b (HIGH)
2020-07-17		TESS-2.27 ± 2.3
LHS3844b (HIGH)
2020-07-16		TESS-1.71 ± 3.6
LHS3844b (HIGH)
2020-07-15		TESS-0.8 ± 1.44
LHS3844b (HIGH)
2020-07-15		TESS-0.47 ± 0.86
LHS3844b (HIGH)
2020-07-14		TESS2.88 ± 3.17
LHS3844b (HIGH)
2020-07-14		TESS-1.82 ± 1.58
LHS3844b (HIGH)
2020-07-13		TESS-1.93 ± 2.45
LHS3844b (HIGH)
2020-07-12		TESS0.18 ± 1.24
LHS3844b (HIGH)
2020-07-12		TESS-0.27 ± 0.82
LHS3844b (HIGH)
2020-07-10		TESS-0.3 ± 1.14
LHS3844b (HIGH)
2020-07-10		TESS-2.92 ± 5.62
LHS3844b (HIGH)
2020-07-09		TESS9.27 ± 1.05
LHS3844b (HIGH)
2020-07-09		TESS-2.87 ± 1.31
LHS3844b (HIGH)
2020-07-09		TESS1.31 ± 1.37
LHS3844b (HIGH)
2020-07-08		TESS-0.16 ± 1.14
LHS3844b (HIGH)
2020-07-07		TESS1.16 ± 0.99
LHS3844b (HIGH)
2020-07-06		TESS-0.13 ± 1.87
LHS3844b (HIGH)
2018-08-21		TESS-0.63 ± 1.73
LHS3844b (HIGH)
2018-08-21		TESS-0.47 ± 1.25
LHS3844b (HIGH)
2018-08-20		TESS0.51 ± 1.44
LHS3844b (HIGH)
2018-08-19		TESS-0.75 ± 1.01
LHS3844b (HIGH)
2018-08-17		TESS0.0 ± 2.74
LHS3844b (HIGH)
2018-08-16		TESS2.0 ± 2.02
LHS3844b (HIGH)
2018-08-16		TESS0.92 ± 1.41
LHS3844b (HIGH)
2018-08-15		TESS0.43 ± 1.25
LHS3844b (HIGH)
2018-08-13		TESS-1.89 ± 1.09
LHS3844b (HIGH)
2018-08-13		TESS3.19 ± 1.14
LHS3844b (HIGH)
2018-08-12		TESS3.11 ± 3.17
LHS3844b (HIGH)
2018-08-11		TESS1.9 ± 2.02
LHS3844b (HIGH)
2018-08-10		TESS-0.51 ± 1.44
LHS3844b (HIGH)
2018-08-10		TESS-0.34 ± 0.81
LHS3844b (HIGH)
2018-08-10		TESS0.83 ± 0.82
LHS3844b (HIGH)
2018-08-07		TESS0.37 ± 1.73
LHS3844b (HIGH)
2018-08-07		TESS-2.33 ± 2.3
LHS3844b (HIGH)
2018-08-06		TESS2.08 ± 2.3
LHS3844b (HIGH)
2018-08-05		TESS0.87 ± 1.58
LHS3844b (HIGH)
2018-08-04		TESS-0.72 ± 1.17
LHS3844b (HIGH)
2018-08-02		TESS1.11 ± 1.09
LHS3844b (HIGH)
2018-08-01		TESS-1.67 ± 4.75
LHS3844b (HIGH)
2018-07-30		TESS-1.02 ± 1.41
LHS3844b (HIGH)
2018-07-29		TESS-2.28 ± 2.88
LHS3844b (HIGH)
2018-07-29		TESS0.72 ± 1.05
LHS3844b (HIGH)
2018-07-28		TESS3.61 ± 4.61
LHS3844b (HIGH)
2018-07-28		TESS-1.39 ± 1.73
LHS3844b (HIGH)
2018-07-27		TESS2.54 ± 2.88
LHS3844b (HIGH)
2018-07-26		TESS-0.78 ± 2.45

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2019-08-18 Diamond-Lowe et al. 2020 -0.36 ± 0.13
2019-08-12 Diamond-Lowe et al. 2020 -0.22 ± 0.24
2019-08-10 Diamond-Lowe et al. 2020 0.39 ± 0.16
2019-08-06 Diamond-Lowe et al. 2020 -0.01 ± 0.16
2019-08-05 Diamond-Lowe et al. 2020 -0.13 ± 0.19
2019-08-04 Diamond-Lowe et al. 2020 -0.07 ± 0.16
2019-07-17 Diamond-Lowe et al. 2020 0.02 ± 0.29
2019-07-16 Diamond-Lowe et al. 2020 0.25 ± 0.16
2019-07-15 Diamond-Lowe et al. 2020 0.05 ± 0.14
2019-07-04 Diamond-Lowe et al. 2020 -0.17 ± 0.17
2019-06-22 Diamond-Lowe et al. 2020 -0.11 ± 0.42
2019-06-21 Diamond-Lowe et al. 2020 0.26 ± 0.27
2019-06-20 Diamond-Lowe et al. 2020 0.04 ± 0.32
© 2019-2025 ExoClock Project - Privacy policy - Contact: exoclockproject@gmail.com
The ExoClock Project is managed by the PULSAR Non-profit Civil Law Company / Address: Pipsou 18A, 54627 Thessaloniki, Greece / VAT: EL996400186 / Tax Office: E Thessaloniki