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. 2022
Mid-time
2458828.93037 ± 0.00025 BJDTDB
Period
0.46292964 ± 3.3e-07 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) 48 (2)
O-C 1.87 ± 1.39 minutes
ExoClock Observations (Recent) 2 (2)
Space Observations (Recent) 46 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.0715 ± 0.0013

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		2.0 ± 2.88
LHS3844b (HIGH)
2023-05-02		Magdalena Szkudlarek
Deep Sky Chile - ROTUZ		PlaneWave CDK 20
QHY268M pro / R / 86.0		1.83 ± 1.58

Space Observations
Planet
Observation Date		 Mission O-C
minutes
LHS3844b (HIGH)
2020-08-23		TESS-0.38 ± 1.87
LHS3844b (HIGH)
2020-08-22		TESS-1.56 ± 0.89
LHS3844b (HIGH)
2020-08-21		TESS0.24 ± 0.99
LHS3844b (HIGH)
2020-08-21		TESS1.28 ± 1.25
LHS3844b (HIGH)
2020-08-18		TESS3.49 ± 1.02
LHS3844b (HIGH)
2020-08-18		TESS-3.65 ± 2.74
LHS3844b (HIGH)
2020-08-17		TESS-0.73 ± 2.02
LHS3844b (HIGH)
2020-08-17		TESS-1.12 ± 0.94
LHS3844b (HIGH)
2020-08-16		TESS0.02 ± 2.02
LHS3844b (HIGH)
2020-08-15		TESS-1.67 ± 2.45
LHS3844b (HIGH)
2020-08-14		TESS-5.11 ± 0.89
LHS3844b (HIGH)
2020-08-10		TESS4.61 ± 1.73
LHS3844b (HIGH)
2020-08-06		TESS-0.61 ± 1.05
LHS3844b (HIGH)
2020-08-05		TESS-0.3 ± 2.74
LHS3844b (HIGH)
2020-08-01		TESS-3.27 ± 2.45
LHS3844b (HIGH)
2020-07-31		TESS-0.3 ± 1.58
LHS3844b (HIGH)
2020-07-28		TESS0.79 ± 1.4
LHS3844b (HIGH)
2020-07-26		TESS0.07 ± 1.87
LHS3844b (HIGH)
2020-07-25		TESS1.25 ± 1.31
LHS3844b (HIGH)
2020-07-22		TESS-0.04 ± 1.21
LHS3844b (HIGH)
2020-07-21		TESS-0.9 ± 5.33
LHS3844b (HIGH)
2020-07-16		TESS-2.16 ± 3.74
LHS3844b (HIGH)
2020-07-15		TESS-0.74 ± 0.91
LHS3844b (HIGH)
2020-07-14		TESS-2.12 ± 1.34
LHS3844b (HIGH)
2020-07-12		TESS-0.11 ± 1.41
LHS3844b (HIGH)
2020-07-12		TESS-0.6 ± 0.98
LHS3844b (HIGH)
2020-07-10		TESS-0.53 ± 1.27
LHS3844b (HIGH)
2020-07-09		TESS9.32 ± 1.09
LHS3844b (HIGH)
2020-07-09		TESS1.0 ± 1.35
LHS3844b (HIGH)
2020-07-08		TESS-0.43 ± 1.58
LHS3844b (HIGH)
2020-07-07		TESS0.82 ± 0.96
LHS3844b (HIGH)
2020-07-06		TESS-1.02 ± 1.58
LHS3844b (HIGH)
2018-08-21		TESS-1.05 ± 1.34
LHS3844b (HIGH)
2018-08-21		TESS-0.84 ± 1.37
LHS3844b (HIGH)
2018-08-19		TESS-1.34 ± 1.35
LHS3844b (HIGH)
2018-08-16		TESS0.57 ± 1.38
LHS3844b (HIGH)
2018-08-13		TESS2.78 ± 1.34
LHS3844b (HIGH)
2018-08-10		TESS-0.76 ± 0.94
LHS3844b (HIGH)
2018-08-10		TESS0.39 ± 0.79
LHS3844b (HIGH)
2018-08-07		TESS-0.07 ± 1.73
LHS3844b (HIGH)
2018-08-06		TESS1.93 ± 2.3
LHS3844b (HIGH)
2018-08-04		TESS-0.96 ± 1.11
LHS3844b (HIGH)
2018-08-02		TESS0.63 ± 1.07
LHS3844b (HIGH)
2018-07-29		TESS-2.86 ± 2.88
LHS3844b (HIGH)
2018-07-29		TESS0.29 ± 1.05
LHS3844b (HIGH)
2018-07-26		TESS-0.94 ± 2.45
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