K2-233 Overview

K2-233 0.74 R_⦿ 4950.00 K

K2-233 b

0.120 R_Jup

K2-233 c

0.114 R_Jup

K2-233 d

0.210 R_Jup

Overview Notes System Parameters Nearby Data Legend

Architecture: K2-233; K2-233

Other Data: Bibliography 8; Exoplanet Archive Notes 6; Nearby Data 6

Discovery Data

Host	Planet	Method	Year	Reference	Disposition
K2-233	K2-233 b	Transit	2018	David et al. 2018	Confirmed Planet
K2-233	K2-233 c	Transit	2018	David et al. 2018	Confirmed Planet
K2-233	K2-233 d	Transit	2018	David et al. 2018	Confirmed Planet

Exoplanet Archive Notes (6)

K2-233 b

Equilibrium temperature was calculated assuming a Bond albedo of 0.3. (David et al. 2018)
RV semi-amplitude, planet mass and density are two-sigma upper limits. (Lillo-Box et al. 2020)

K2-233 c

Equilibrium temperature was calculated assuming a Bond albedo of 0.3. (David et al. 2018)
RV semi-amplitude, planet mass and density are two-sigma upper limits. (Lillo-Box et al. 2020)

K2-233 d

Equilibrium temperature was calculated assuming a Bond albedo of 0.3. (David et al. 2018)
RV semi-amplitude, planet mass and density are two-sigma upper limits. (Lillo-Box et al. 2020)

K2-233 Stellar Parameters (4 Solutions)

RA: 15h21m55.18s

Dec: -20d13m54.47s

Distance: 67.5062+0.2799-0.2775
pc

Parallax: 14.7849000±0.0606971 mas

Ecliptic Latitude: -1.68296 deg

Ecliptic Longitude: 233.31618 deg

Galactic Latitude: 30.24863 deg

Galactic Longitude: 344.46401 deg

Total Proper Motion: 36.9808715±0.1093552 mas/yr

Proper Motion (RA): -19.871300±0.113766 mas/yr

Proper Motion (Dec): -31.188400±0.107513 mas/yr

Photometry: m_V
10.883±0.014; m_TESS
9.8125±0.0060; m_J
8.968±0.020; m_H
8.501±0.026; m_Ks
8.375±0.023; m_Kep
10.422; m_W1
8.318±0.023; m_W2
8.381±0.021; m_W3
8.332±0.025; m_W4
8.278±0.322; m_Gaia
10.419100±0.000343; m_B
11.813±0.182

Mission: K2 : Observed in Campaign 15

Tools: ExoFOP Target Overview Page; IRSA Finding Chart; K2 Names; K2 Planets and Candidates; K2 Targets; Stellar Hosts; K2 Time Series

Source	Lillo-Box et al. 2020	TICv8	Gaia DR2	David et al. 2018
T_eff (K)	5033+41-35	4814.000+105.466-144.128	4889.2300+62.0150-64.5796	4950±100
L_✶ (log₁₀(L_⦿))	---	-0.5741527+0.0181386-0.0127714	-0.58118499+0.00233685-0.00234954	-0.523+0.044-0.049
Metallicity (dex)	-0.090±0.030 [Fe/H]	---	---	0.070±0.060 [Fe/H]
γ (km/s)	-9.6483+0.0055-0.0056	---	-10.264443704601566±0.612279004052200	-9.73±0.20
v sin i (km/s)	---	---	---	4.5±1.0
Age (Gyr)	---	---	---	0.360+0.490-0.140
M_✶ (M_⦿)	0.79±0.01	0.7800000+0.0894775-0.0894274	---	0.800±0.032
R_✶ (R_⦿)	0.71±0.01	0.7422740+0.0589427-0.0437457	0.71380436+0.01923690-0.01776910	0.745±0.025
log g (log₁₀(cm/s²))	4.64±0.01	4.5890300+0.0898054-0.0926286	---	4.71±0.10
Sp. T	---	---	---	K3
P_rot (days)	---	---	---	9.754±0.038
ρ_✶ (g/cm³)	3.17+0.06-0.04	2.6888630+0.8082591-0.6419348	---	---

K2-233 b Planetary Parameters (2 Solutions)

Status: Confirmed Planet
Detected By: Transit

Tools: Transit Prediction Service; K2 Names; K2 Planets and Candidates; Transit

Source	Lillo-Box et al. 2020	David et al. 2018
a/R_✶	10.07±0.05	9.49+0.29-0.32
T_eq (K)	1121+10-9	1040+28-26
b	0.13+0.13-0.09	0.20+0.15-0.14
ω (deg)	248+53-35	---
M_p (M_⨁)	<11.26	---
M_p (M_Jup)	<0.03543	---
e	0.0790+0.0480-0.0290	0
i (deg)	89.3+0.5-0.7	88.79+0.82-0.94
P (days)	2.46750±0.00004	2.46746±0.00014
ρ (g/cm³)	<26.26	---
R_p (R_⨁)	1.343+0.018-0.016	1.398+0.062-0.060
R_p (R_Jup)	0.1198+0.0016-0.0014	0.1247+0.0055-0.0054
R_p/R_✶	0.01743+0.00019-0.00016	0.01721+0.00049-0.00047
K (m/s)	<6.27	---
a (au)	0.03308+0.00010-0.00009	0.03317+0.00044-0.00045
T₁₄ (hours)	1.988±0.026	1.969+0.062-0.063
T_C (days)	2457991.69112+0.00083-0.00084	2457991.6910+0.0026-0.0025
S (S_⨁)	---	273±30

K2-233 c Planetary Parameters (2 Solutions)

Status: Confirmed Planet
Detected By: Transit

Tools: Transit Prediction Service; K2 Names; K2 Planets and Candidates; Transit

Source	Lillo-Box et al. 2020	David et al. 2018
a/R_✶	20.30+0.11-0.10	19.34+0.67-0.74
T_eq (K)	790+7-6	728+20-19
b	0.13+0.14-0.09	0.36+0.15-0.21
ω (deg)	261+52-44	---
M_p (M_⨁)	<12.81	---
M_p (M_Jup)	<0.04030	---
e	<0.2002	0
i (deg)	89.6+0.3-0.4	88.95+0.61-0.47
P (days)	7.06005+0.00024-0.00027	7.06142±0.00084
ρ (g/cm³)	<33.91	---
R_p (R_⨁)	1.281+0.022-0.021	1.335+0.083-0.077
R_p (R_Jup)	0.1143+0.0020-0.0019	0.1191+0.0074-0.0069
R_p/R_✶	0.01663+0.00026-0.00024	0.01643+0.00084-0.00078
K (m/s)	<5.02	---
a (au)	0.06666+0.00020-0.00018	0.06687+0.00088-0.00090
T₁₄ (hours)	2.796+0.057-0.053	2.65+0.13-0.15
T_C (days)	2457586.87653+0.01769-0.01567	2457996.3522+0.0056-0.0057
S (S_⨁)	---	67.1+7.4-7.3

K2-233 d Planetary Parameters (3 Solutions)

Status: Confirmed Planet
Detected By: Transit

Tools: Transit Prediction Service; K2 Names; K2 Planets and Candidates; Transit

Source	Lillo-Box et al. 2020	Kokori et al. 2023	David et al. 2018
a/R_✶	46.36±0.24	44.2+1.6-1.8	44.2+1.6-1.8
T_eq (K)	523+5-4	---	482+14-13
b	0.32+0.11-0.20	---	0.500+0.065-0.079
ω (deg)	139+100-82	---	---
M_p (M_⨁)	<21.14	---	---
M_p (M_Jup)	<0.06651	---	---
e	<0.1999	---	0
i (deg)	89.6+0.2-0.1	89.35+0.12-0.11	89.35+0.12-0.11
P (days)	24.36450±0.00068	24.365430±0.000021	24.3662±0.0021
ρ (g/cm³)	<8.85	---	---
R_p (R_⨁)	2.358+0.043-0.036	---	2.64±0.11
R_p (R_Jup)	0.2104+0.0038-0.0032	---	0.236±0.010
R_p/R_✶	0.03062+0.00048-0.00040	0.0325±0.0008	0.03254+0.00080-0.00079
K (m/s)	<5.45	---	---
a (au)	0.15224+0.00046-0.00042	---	0.1527+0.0020-0.0021
T₁₄ (hours)	3.838±0.033	---	3.808+0.089-0.088
T_C (days)	2458005.58237+0.00092-0.00088	2458151.77395±0.00034	2458005.5801+0.0025-0.0024
S (S_⨁)	---	---	12.9±1.4

Nearby Data (6 Data Types within 30 arcseconds)

Known Objects: 3 Confirmed Planets; 1 K2 Targets; 1 2MASS Point Source Catalog

Data Files: 4 KELT Time Series; 1 K2 Time Series; 3 Associated Literature Data

Bibliography (8 References)

System

Star

Confirmed

Candidate

False Positive Planet

Controversial

False Positive

Aliases

Data Access

Transit Prediction Service

Time Series

Kepler | K2

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