K2-168 Overview

K2-168 0.90 R_⦿ 5484.00 K

EPIC 205950854 c

0.117 R_Jup

K2-168 b

0.166 R_Jup

Overview Notes 1 Parameters Nearby Data Bibliography 10 Legend Expand All

K2-168 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
K2-168
EPIC 205950854 c	8.05 d	1.31 R_⨁	Transit	2019	Heller et al. 2019	Confirmed Planet
K2-168 b	15.85 d	1.86 R_⨁	Transit	2018	Mayo et al. 2018	Confirmed Planet

Exoplanet Archive Notes (1)

EPIC 205950854 c

Planet also independently announced in this ref. (Hedges et al. 2019)

K2-168 Stellar Parameters (8 Solutions)

RA: 22h12m26.42s

Dec: -16d20m30.79s

Distance: 243.935+4.239-4.099
pc

Parallax: 4.0723500±0.0695159 mas

Ecliptic Latitude: -4.90552 deg

Ecliptic Longitude: 329.19967 deg

Galactic Latitude: -51.71337 deg

Galactic Longitude: 40.91076 deg

Total Proper Motion: 47.2711080±0.0971322 mas/yr

Proper Motion (RA): 36.79770±0.10712 mas/yr

Proper Motion (Dec): -29.6730000±0.0793559 mas/yr

Photometry: m_V
12.365±0.069; m_TESS
11.6244±0.0061; m_J
10.957±0.026; m_H
10.589±0.023; m_Ks
10.549±0.024; m_Kep
12.105; m_W1
10.512±0.024; m_W2
10.551±0.022; m_W3
10.422±0.101; m_W4
8.716; m_Gaia
12.097600±0.000305; m_B
12.973±0.051

Mission: K2 : Observed in Campaign 3

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

Source	TICv8	Hedges et al. 2019	Heller et al. 2019	Gaia DR2	Mayo et al. 2018	Kruse et al. 2019	Kruse et al. 2019	Vanderburg et al. 2016
T_eff (K)	5286.500+123.904-134.871	5502.7+101.0-50.5	---	5484.00+117.00-40.25	5554.0±50.0	---	---	5495
L_✶ (log₁₀(L_⦿))	-0.1504258+0.0173830-0.0211440	---	---	-0.1764947+0.0093557-0.0095618	---	---	---	---
γ (km/s)	---	---	---	-10.086232501773992±1.132546441835252	---	---	---	---
R_✶ (R_⦿)	1.0025400+0.0588955-0.0609588	0.830+0.087-0.043	---	0.90408736+0.01341870-0.03737670	0.874211 +0.068412-0.039328	0.904 +0.037-0.013	0.904 +0.037-0.013	0.88
M_✶ (M_⦿)	0.90800000+0.12823600-0.09826460	0.877+0.060-0.029	0.907+0.032-0.029	---	0.906739 +0.029469-0.032002	---	---	---
Metallicity (dex)	-0.29±0.10 [M/H]	---	---	---	-0.13±0.08 [Fe/H]	---	---	---
log g (log₁₀(cm/s²))	4.3939500+0.0904746-0.0844511	---	---	---	4.46±0.1	---	---	---
ρ_✶ (g/cm³)	1.2704029+0.3098093-0.3213854	---	---	---	---	---	---	---

EPIC 205950854 c Planetary Parameters (3 Solutions)

Status: Confirmed Planet

Detected By: Transit

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

Source	Hedges et al. 2019	Heller et al. 2019	Kruse et al. 2019
a/R_✶	16.18+0.36-0.18	---	14.6 +6.1-2.5
P (days)	8.050722+0.000075-0.000038	8.0468+0.0024-0.0025	8.0516 +0.0012-0.0011
R_p (R_⨁)	1.310+0.144-0.063	1.18+0.13-0.10	1.62 +0.16-0.38
R_p (R_Jup)	0.1169+0.0128-0.0056	0.105+0.012-0.009	0.145 +0.014-0.034
R_p/R_✶	0.01258+0.00075-0.00057	0.0124+0.0010-0.0009	0.0164 +0.0015-0.0038
δ (%)	---	---	0.0303±0.0018
T₁₄ (hours)	---	---	3.72000+0.28800-0.31200
T_C (days)	2456973.7648+0.0100-0.0099 (JD)	2457013.9808+0.0062-0.0061 (BJD)	2456981.8136 +0.0046-0.0053 (BJD)
b	0.0640+0.3070-0.1410	0.31+0.25-0.21	---
T_eq (K)	960.6+20.5-10.2	---	---
i (deg)	89.81+0.98-0.43	---	---

K2-168 b Planetary Parameters (4 Solutions)

Status: Confirmed Planet

Detected By: Transit

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

Source	Hedges et al. 2019	Mayo et al. 2018	Kruse et al. 2019	Vanderburg et al. 2016
b	0.32+0.20-0.11	---	---	0.17
P (days)	15.8523+0.0025-0.0012	15.853989 +0.001415-0.001384	15.8523 +0.0012-0.0013	15.854120
R_p (R_⨁)	1.86+0.24-0.11	2.1444623109 +0.207040849161-0.137164461339	2.19 +0.14-0.22	2.34
R_p (R_Jup)	0.166+0.021-0.010	0.1913161130 +0.0184709474-0.0122369936	0.195 +0.012-0.020	0.209
R_p/R_✶	0.01812±0.00100	0.022489 +0.001272-0.001023	0.0222 +0.0010-0.0022	0.02208
δ (%)	---	---	0.0532 +0.0019-0.002	0.0598
T₁₄ (hours)	---	---	3.79200+0.12000-0.14400	3.88000
T_C (days)	2456975.03774±0.00230 (JD)	2456990.88774 +0.002676-0.002593	2456990.8928 +0.0026-0.0025 (BJD)	2456990.887 (BJD)
a/R_✶	25.42+0.57-0.28	27.885720 +4.053223-8.627765	29.0 +8.6-3.5	---
T_eq (K)	766.35+16.33-8.12	---	---	---
i (deg)	89.40+0.46-0.25	88.948008 +0.739778-1.349827	---	---

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

Data Files: 1 K2 Time Series; 2 Associated Literature Data

Bibliography (10 References)

The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
Detection of Hundreds of New Planet Candidates and Eclipsing Binaries in K2 Campaigns 0-8
Kruse et al. 2019 Reference Overview
Transit least-squares survey. II. Discovery and validation of 17 new sub- to super-Earth-sized planets in multi-planet systems from K2
Heller et al. 2019 Reference Overview
Four Small Planets Buried in K2 Systems: What Can We Learn for TESS?
Hedges et al. 2019 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
Mayo et al. 2018 Reference Overview
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog Reference Overview
Planetary Candidates from the First Year of the K2 Mission
Vanderburg et al. 2016 Reference Overview
All WISE Data Release
Cutri et al. 2014 Reference Overview
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog Reference Overview

System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive

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Transit Prediction Service
Time Series
Kepler | K2

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