exoclock

NGTS-1b (HIGH)

Discovered by: Bayliss et al. 2018

The Star
Simbad
GAIA
2MASS		 NGTS-1
DR2 4821739369794767744
J05305145-3637508
RA 05:30:51.4522 DEC -36:37:50.896
Parallax
4.556 mas		 P.M. RA
-31.902 mas/y		 P.M. DEC
-41.025 mas/y
MagV
15.57		 MagR
15.36		 MagI
13.97		 MagJ
12.702		 MagH
12.058		 MagK
11.936
MagG
14.866		 MagGBP
15.781		 MagGRP
13.921
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458652.51257 ± 0.00034 BJDTDB
Period
2.6473082 ± 1.4e-06 days
Transit Parameters
Bayliss et al. 2018
Rp/Rs**
0.2392 ± 0.0033		 a/Rs
12.2 +0.7 -0.7
 i
85.27 +0.61 -0.73 deg
e
-		 ω
- deg
DepthR*
22.84 mmag		 Duration*
1.2 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Bayliss et al. 2018
Teff
3916.0 +71.0 -63.0 K
 Log(g)
4.71 +0.23 -0.23 cm/s2
 Fe/H
0.0 +0.0 -0.0 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 19.56"
Total Observations (Recent) 41 (0)
O-C -1.81 ± 2.09 minutes
ExoClock Observations (Recent) 6 (0)
Space Observations (Recent) 34 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.2392 ± 0.0033

NGTS-1b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
NGTS-1b (HIGH)
2024-11-18		Karolina Prucnal
DeepSkyChile - ROTUZ		PlaneWave CDK 20
QHY268M pro / Lum / 180.0		-1.01 ± 2.45
NGTS-1b (HIGH)
2024-10-04		Karolina Prucnal
DeepSkyChile - ROTUZ		PlaneWave CDK 20
QHY268M pro / R / 180.0		-3.98 ± 4.03
NGTS-1b (HIGH)
2023-12-10		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 180.0		3.55 ± 3.31
NGTS-1b (HIGH)
2022-03-12		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 60.0		1.06 ± 3.46
NGTS-1b (HIGH)
2022-01-18		Leon Bewersdorff
Planewave CDK24		Planewave CDK24
QHY600M-Pro / R / 60.0		2.02 ± 4.32
NGTS-1b (HIGH)
2021-12-04		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / R / 120.0		9.56 ± 4.32

Space Observations
Planet
Observation Date		 Mission O-C
minutes
NGTS-1b (HIGH)
2021-01-12		TESS-1.37 ± 3.17
NGTS-1b (HIGH)
2021-01-09		TESS3.11 ± 4.9
NGTS-1b (HIGH)
2021-01-07		TESS-0.19 ± 4.03
NGTS-1b (HIGH)
2021-01-04		TESS-0.76 ± 2.3
NGTS-1b (HIGH)
2021-01-01		TESS-0.89 ± 3.17
NGTS-1b (HIGH)
2020-12-30		TESS-3.18 ± 2.16
NGTS-1b (HIGH)
2020-12-27		TESS0.43 ± 3.6
NGTS-1b (HIGH)
2020-12-24		TESS1.31 ± 3.74
NGTS-1b (HIGH)
2020-12-22		TESS-2.86 ± 2.59
NGTS-1b (HIGH)
2020-12-19		TESS-8.6 ± 3.46
NGTS-1b (HIGH)
2020-12-14		TESS-4.98 ± 2.3
NGTS-1b (HIGH)
2020-12-11		TESS2.09 ± 2.3
NGTS-1b (HIGH)
2020-12-09		TESS0.08 ± 3.74
NGTS-1b (HIGH)
2020-12-06		TESS1.1 ± 3.02
NGTS-1b (HIGH)
2020-12-03		TESS-1.91 ± 3.31
NGTS-1b (HIGH)
2020-12-01		TESS6.89 ± 2.59
NGTS-1b (HIGH)
2020-11-28		TESS0.56 ± 2.74
NGTS-1b (HIGH)
2020-11-25		TESS0.43 ± 2.59
NGTS-1b (HIGH)
2020-11-23		TESS-2.73 ± 3.17
NGTS-1b (HIGH)
2019-01-04		TESS-2.97 ± 2.88
NGTS-1b (HIGH)
2019-01-02		TESS-4.97 ± 2.45
NGTS-1b (HIGH)
2018-12-30		TESS-6.11 ± 3.74
NGTS-1b (HIGH)
2018-12-27		TESS0.95 ± 2.3
NGTS-1b (HIGH)
2018-12-22		TESS3.71 ± 3.17
NGTS-1b (HIGH)
2018-12-19		TESS3.44 ± 2.59
NGTS-1b (HIGH)
2018-12-17		TESS-3.32 ± 2.59
NGTS-1b (HIGH)
2018-12-09		TESS-3.71 ± 3.02
NGTS-1b (HIGH)
2018-12-06		TESS1.48 ± 2.16
NGTS-1b (HIGH)
2018-12-04		TESS4.37 ± 4.18
NGTS-1b (HIGH)
2018-12-01		TESS3.23 ± 1.73
NGTS-1b (HIGH)
2018-11-26		TESS4.55 ± 3.31
NGTS-1b (HIGH)
2018-11-23		TESS-1.2 ± 2.45
NGTS-1b (HIGH)
2018-11-20		TESS0.69 ± 3.17
NGTS-1b (HIGH)
2018-11-18		TESS-1.6 ± 3.02

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2016-11-28 Bayliss et al. 2018 0.15 ± 0.89
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