exoclock

NGTS-8b (ALERT)

Discovered by: Costes et al. 2020

The Star
Simbad
GAIA
2MASS
NGTS-8
DR2 6840435777723109888
J21555419-1404062
RA 21:55:54.1981 DEC -14:04:06.225
Parallax
2.303 mas
P.M. RA
21.363 mas/y
P.M. DEC
-10.194 mas/y
MagV
13.72
MagR
13.53
MagI*
12.78
MagJ
12.14
MagH
11.751
MagK
11.642
MagG
13.495
MagGBP
13.961
MagGRP
12.878
*Calculated from GAIA magnitudes.

Ephemeris - Not verified False
Costes et al. 2020
Mid-time
2457500.17909 ± 0.00072 BJDTDB
Period
2.4997 ± 1e-05 days

Transit Parameters
Costes et al. 2020
Rp/Rs
0.114 ± 0.002
a/Rs
7.6 +0.18 -0.18
i
86.9 +0.5 -0.5 deg
e
-
ω
- deg
DepthR*
16.88 mmag
Duration*
2.61 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Costes et al. 2020
Teff
5241.0 +50.0 -50.0 K
Log(g)
4.41 +0.03 -0.03 cm/s2
Fe/H
0.24 +0.09 -0.09 dex
ExoClock Status
Observing Priority ALERT
Minimum aperture 9.54"
Total Observations (Recent) 19 (6)
O-C -20.61 ± 0.39 minutes
ExoClock Observations (Recent) 19 (6)
Space Observations (Recent) 0 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs -
TESS Rp/Rs -

NGTS-8b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
NGTS-8b (ALERT)
2024-07-08
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 180.0
-21.01 ± 1.73
NGTS-8b (ALERT)
2024-07-08
Jean-Pascal Vignes
Deep Sky Chile
Planewave CDK400
QHYCCD 600M / Lum / 120.0
-21.7 ± 1.09
NGTS-8b (ALERT)
2024-07-03
Sacha Foschino
Deep Sky Chile
RASA 14
ZWO ASI 6200 MM Pro / R / 120.0
-20.72 ± 2.16
NGTS-8b (ALERT)
2023-11-18
Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 240.0
-21.01 ± 4.61
NGTS-8b (ALERT)
2023-10-04
Mercedes Correa
Montsec Observatory
RC 80 cm
iKON XL / R / 120.0
-28.07 ± 1.87
NGTS-8b (ALERT)
2023-09-29
Mercedes Correa
Montsec Observatory
RC 80 cm
iKON XL / R / 120.0
-21.15 ± 3.17
NGTS-8b (ALERT)
2023-06-29
Anaël Wünsche
El Sauce Observatory
CDK Planewave Chili
Moravian G4 16k / Lum / 120.0
-17.99 ± 1.73
NGTS-8b (ALERT)
2023-06-29
Katje van der Zalm
Deep Sky Chile
PlaneWave CDK 17"
Moravian 4G / Lum / 180.0
-18.46 ± 1.31
NGTS-8b (ALERT)
2023-06-14
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 180.0
-20.13 ± 0.88
NGTS-8b (ALERT)
2023-06-14
Anaël Wünsche
El Sauce Observatory
CDK Planewave Chili
Moravian G4 16k / Lum / 120.0
-22.16 ± 2.02
NGTS-8b (ALERT)
2023-06-14
Francois Regembal
HRT Deep Sky Chile
Astrosib RC360
Moravian C3 PRO 61000 / Lum / 180.0
-25.04 ± 2.16
NGTS-8b (ALERT)
2023-05-30
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 180.0
-21.74 ± 1.25
NGTS-8b (ALERT)
2023-05-30
Gregory Grivas
Cerro Tololo Observatory
LCO Meade
SBIG STX6303 / rpr / 240.0
-21.87 ± 1.73
NGTS-8b (ALERT)
2022-10-14
Vincent Boucher
Observatoire de Saint-Véran Paul Felenbok
Astrosib RC500
SBIG STX-16803 / Lum / 180.0
-15.39 ± 1.58
NGTS-8b (ALERT)
2022-10-14
Robert Roth
TURMX Observatory
CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / Lum / 120.0
-19.14 ± 2.02
NGTS-8b (ALERT)
2022-10-14
Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 240.0
-19.43 ± 4.61
NGTS-8b (ALERT)
2022-10-04
Marc Serrau
A77 Dauban
Celestron 11
QHY268 Mono / Clear / 60.0
-18.42 ± 1.73
NGTS-8b (ALERT)
2022-10-04
Jacques Michelet
Claix
GSO Ritchey-Chrétien
QSI-632 / R / 120.0
-23.03 ± 2.74
NGTS-8b (ALERT)
2022-09-24
Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 240.0
-19.57 ± 3.6
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