exoclock

K2-30b (LOW)

Discovered by: Johnson et al. 2016

The Star
Simbad
GAIA
2MASS		 K2-30
DR2 61607255708760960
J03292204+2217577
RA 03:29:22.0746 DEC +22:17:57.874
Parallax
2.974 mas		 P.M. RA
16.579 mas/y		 P.M. DEC
-14.027 mas/y
MagV
13.53		 MagR*
12.939		 MagI*
12.411		 MagJ
11.632		 MagH
11.19		 MagK
11.088
MagG
13.206		 MagGBP
13.777		 MagGRP
12.499
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457572.018282 ± 9.9e-05 BJDTDB
Period
4.09847736 ± 4e-07 days
Transit Parameters
Johnson et al. 2016
Rp/Rs
0.1266 ± 0.0016		 a/Rs
12.3 +0.4 -0.4
 i
86.92 +0.26 -0.24 deg
e
-		 ω
- deg
DepthR*
18.69 mmag		 Duration*
2.33 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Johnson et al. 2016
Teff
5425.0 +40.0 -40.0 K
 Log(g)
4.54 +0.03 -0.03 cm/s2
 Fe/H
-0.15 +0.05 -0.05 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 7.74"
Total Observations (Recent) 87 (7)
O-C -1.36 ± 0.49 minutes
ExoClock Observations (Recent) 55 (7)
Space Observations (Recent) 32 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs 0.12601 ± 0.00025
TESS Rp/Rs 0.1264 ± 0.00095

K2-30b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
K2-30b (LOW)
2025-12-29		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 120.0		-1.77 ± 2.02
K2-30b (LOW)
2025-12-29		Tiberiu Savin
Tiberiu Savin		Skywatcher 200 Quattro
ZWO ASI 533MM / Clear / 60.0		-2.49 ± 2.45
K2-30b (LOW)
2025-12-29		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 180.0		-4.22 ± 1.87
K2-30b (LOW)
2025-12-01		Ivo Silvestri
Trevinca Skies		Skywatcher Newton 250pds
ASI2600MM Duo / Lum / 60.0		1.75 ± 4.32
K2-30b (LOW)
2025-12-01		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / R / 90.0		-2.72 ± 2.02
K2-30b (LOW)
2025-09-06		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0		1.21 ± 2.74
K2-30b (LOW)
2025-09-06		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 240.0		-0.95 ± 2.02
K2-30b (LOW)
2025-01-31		David Wright
Goveryk (private observatory)		Ritchey-Chretien
QSI 683WSG-8 / R / 180.0		2.36 ± 4.9
K2-30b (LOW)
2024-12-25		Massimiliano Mannucci
Osservatorio Astronomico Margherita Hack		Celestron C14
SBIG ST10 XME / R / 300.0		3.94 ± 2.3
K2-30b (LOW)
2024-12-21		David Quiles
David Quiles Observatory		Celestron EDGEHD 800
Omegon veTEC 571M / R / 300.0		0.59 ± 2.02
K2-30b (LOW)
2024-12-01		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Lum / 180.0		3.74 ± 3.02
K2-30b (LOW)
2024-11-19		Alvaro Fornas
MPC J57. Centro Astronómico Alto Turia		Planewave CDK 17
QHY600M / Lum / 240.0		-5.57 ± 1.58
K2-30b (LOW)
2024-11-10		Ivo Peretto
MarSEC Marana Space Explorer Center		R-C
Moravia G2-1600 MkII / R / 120.0		-6.21 ± 2.59
K2-30b (LOW)
2024-10-04		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 150.0		1.7 ± 2.59
K2-30b (LOW)
2024-10-04		Alvaro Fornas
MPC J57. Centro Astronómico Alto Turia		Meade LX200 Classic
Moravian G2 8300 / Lum / 90.0		0.84 ± 1.87
K2-30b (LOW)
2024-10-04		EXOPA TEAM
GAL HASSIN		Galhassin Robotic Telescope
LI ProLine 16803 / Lum / 140.0		0.4 ± 1.73
K2-30b (LOW)
2024-10-04		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-2.0 ± 1.02
K2-30b (LOW)
2024-01-24		Esteban Reina
Observatori de Masquefa		Meade LX200
ZWO ASI 294 MM Pro / R / 120.0		14.8 ± 2.16
K2-30b (LOW)
2024-01-24		Enrique Arce
Vallbona Observatory		Ritchey Chretien
ZWO ASI 294 MM PRO / Lum / 300.0		7.6 ± 2.88
K2-30b (LOW)
2024-01-24		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-0.18 ± 1.58
K2-30b (LOW)
2024-01-20		Stefano Lora
MarSEC		Ritchey Chrétien
Moravian G2 Mark II / R / 120.0		4.25 ± 3.74
K2-30b (LOW)
2024-01-12		Lee YuHsien
KMSH Observatory		C14HD
QSI-660 / Clear / 30.0		-2.72 ± 2.02
K2-30b (LOW)
2023-12-10		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		-2.41 ± 4.32
K2-30b (LOW)
2023-10-14		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Lum / 180.0		-1.14 ± 1.44
K2-30b (LOW)
2023-09-28		Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"		NEWTON 410/1710
Player One Astronomy Poseidon-M Pro (IMX571) / R / 120.0		-2.99 ± 2.74
K2-30b (LOW)
2023-01-16		Mark Salisbury
POST		Orion Optics ODK
SBIG ST-10 XME / R / 240.0		1.44 ± 1.12
K2-30b (LOW)
2023-01-16		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / Clear / 150.0		1.03 ± 2.45
K2-30b (LOW)
2023-01-16		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / Lum / 200.0		-0.26 ± 2.59
K2-30b (LOW)
2023-01-16		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 180.0		-0.7 ± 5.47
K2-30b (LOW)
2023-01-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		1.14 ± 2.45
K2-30b (LOW)
2022-12-19		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Clear / 120.0		2.24 ± 2.45
K2-30b (LOW)
2022-11-04		David Arnot
OSO PIRATE		PlaneWave Instruments CDK24 24 inch (610 mm) f/6.5 Corrected Dall-Kirkham Astrograph
FLI ProLine KAF-16803 / R / 75.0		-0.35 ± 1.3
K2-30b (LOW)
2022-10-26		Antonino Brosio
ABObservatory		Skywatcher Newton Quattro 300P
Atik 383 L / rpr / 180.0		1.24 ± 2.3
K2-30b (LOW)
2022-01-04		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / Lum / 200.0		-0.09 ± 1.58
K2-30b (LOW)
2022-01-04		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 120.0		-0.67 ± 2.45
K2-30b (LOW)
2022-01-04		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Clear / 180.0		-0.96 ± 3.17
K2-30b (LOW)
2021-12-31		Giovanni Battista Casalnuovo
FSO Filzi School Observatory		RC14" f/8
ASI 294 PRO / Clear / 60.0		-1.14 ± 1.44
K2-30b (LOW)
2021-12-31		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-1.71 ± 4.32
K2-30b (LOW)
2020-11-25		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-1.02 ± 1.44
K2-30b (LOW)
2020-11-21		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		3.85 ± 1.58
K2-30b (LOW)
2020-11-21		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		3.7 ± 1.44
K2-30b (LOW)
2020-11-16		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		5.54 ± 1.15
K2-30b (LOW)
2020-09-12		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Clear / 120.0		2.57 ± 1.01
K2-30b (LOW)
2020-09-04		Francois Regembal
HRTobs		Astrosib RC360
SBIG STX 16803 / Lum / 120.0		-1.24 ± 2.59
K2-30b (LOW)
2020-08-31		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		5.35 ± 1.44
K2-30b (LOW)
2020-08-31		Francois Regembal
HRTobs		Astrosib RC360
SBIG STX 16803 / Lum / 180.0		5.21 ± 4.32
K2-30b (LOW)
2020-08-31		Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / Lum / 60.0		-1.41 ± 1.01
K2-30b (LOW)
2020-08-31		Alessandro Nastasi
Galhassin Robotic Telescope 1 (GRT1)		Officina Stellare RiLa 400
FLI ProLine 16803 / Lum / 45.0		-1.56 ± 2.59
K2-30b (LOW)
2020-08-31		Danilo Sedita
Osservatorio Sedita Castrofilippo		RC GSO 14"
Moravian G2-1600 / R / 60.0		-1.85 ± 1.58
K2-30b (LOW)
2020-08-18		Taewoo Kim
Deokheung Optical Astronomy Observatory		NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 180.0		-1.22 ± 0.72
K2-30b (LOW)
2019-12-16		Alessandro Nastasi
Galhassin Robotic Telescope 1 (GRT1)		Officina Stellare RiLa 400
FLI ProLine 16803 / Lum / 60.0		2.44 ± 4.32
K2-30b (LOW)
2019-10-04		Pere Guerra
Observatori Astronòmic Albanyà		16" Meade ACF F8
Moravian G4-9000 / AstrodonExoPlanet-BB / 120.0		2.14 ± 0.72
K2-30b (LOW)
2019-09-29		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 60.0		-0.49 ± 2.45
K2-30b (LOW)
2018-12-04		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		1.31 ± 1.44
K2-30b (LOW)
2018-01-23		Steven Peterson
Vail View Observatory H18		RCOS 14.5" f/ 7.9
SBIG STL-1301E / I / 120.0		-1.36 ± 1.22

Space Observations
Planet
Observation Date		 Mission O-C
minutes
K2-30b (LOW)
2023-11-08		TESS-1.23 ± 1.87
K2-30b (LOW)
2023-11-03		TESS-1.55 ± 2.45
K2-30b (LOW)
2023-10-26		TESS-1.47 ± 2.3
K2-30b (LOW)
2023-10-22		TESS-3.37 ± 2.3
K2-30b (LOW)
2023-10-18		TESS1.34 ± 2.16
K2-30b (LOW)
2023-10-14		TESS-1.42 ± 1.73
K2-30b (LOW)
2023-10-10		TESS-3.47 ± 1.58
K2-30b (LOW)
2023-10-06		TESS-2.93 ± 1.73
K2-30b (LOW)
2023-10-02		TESS1.93 ± 1.87
K2-30b (LOW)
2023-09-28		TESS0.03 ± 1.58
K2-30b (LOW)
2023-09-23		TESS-2.74 ± 1.73
K2-30b (LOW)
2021-11-04		TESS-4.33 ± 2.02
K2-30b (LOW)
2021-10-31		TESS-1.05 ± 2.02
K2-30b (LOW)
2021-10-27		TESS-0.94 ± 2.02
K2-30b (LOW)
2021-10-23		TESS-2.41 ± 2.02
K2-30b (LOW)
2021-10-18		TESS1.73 ± 1.73
K2-30b (LOW)
2021-10-14		TESS-0.89 ± 1.58
K2-30b (LOW)
2021-10-10		TESS-0.2 ± 2.74
K2-30b (LOW)
2021-10-06		TESS-2.11 ± 2.3
K2-30b (LOW)
2021-10-02		TESS-2.43 ± 2.74
K2-30b (LOW)
2021-09-24		TESS-2.06 ± 2.16
K2-30b (LOW)
2021-09-20		TESS-3.25 ± 2.88
K2-30b (LOW)
2021-09-12		TESS3.02 ± 2.16
K2-30b (LOW)
2021-09-08		TESS-0.18 ± 1.73
K2-30b (LOW)
2021-09-03		TESS-1.5 ± 2.3
K2-30b (LOW)
2021-08-26		TESS1.02 ± 2.59
K2-30b (LOW)
2021-08-22		TESS-1.89 ± 2.45
K2-30b (LOW)
2015-03-19		K21.01 ± 0.36
K2-30b (LOW)
2015-03-15		K22.06 ± 0.91
K2-30b (LOW)
2015-03-06		K2-0.91 ± 0.35
K2-30b (LOW)
2015-02-22		K2-0.16 ± 0.17
K2-30b (LOW)
2015-02-10		K20.0 ± 0.19
© 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