K2-90 Overview

K2-90 0.49 R_⦿ 4136.00 K

K2-90 c

0.116 R_Jup

K2-90 b

0.232 R_Jup

Overview Notes 1 Parameters Nearby Data Bibliography 10 Legend Expand All

K2-90 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
K2-90
K2-90 c	2.9 d	1.3 R_⨁	Transit	2016	Crossfield et al. 2016	Confirmed Planet
K2-90 b	13.73 d	2.6 R_⨁	Transit	2016	Crossfield et al. 2016	Confirmed Planet

Exoplanet Archive Notes (1)

K2-90 b

Equilibrium temperature was calculated assuming a Bond albedo of 0.3. (Livingston et al. 2019)

K2-90 Stellar Parameters (8 Solutions)

RA: 03h56m36.66s

Dec: +22d28m20.83s

Distance: 134.188+0.421-0.419
pc

Parallax: 7.4233700±0.0231484 mas

Ecliptic Latitude: 2.01287 deg

Ecliptic Longitude: 61.6949 deg

Galactic Latitude: -23.20116 deg

Galactic Longitude: 169.54805 deg

Total Proper Motion: 85.7942380±0.0411672 mas/yr

Proper Motion (RA): 72.8097000±0.0449444 mas/yr

Proper Motion (Dec): -45.3806000±0.0292822 mas/yr

Photometry: m_V
13.707±0.103; m_TESS
12.4067±0.0060; m_J
11.168±0.023; m_H
10.495±0.027; m_Ks
10.36±0.02; m_Kep
13.723; m_W1
10.291±0.024; m_W2
10.327±0.019; m_W3
10.293±0.077; m_W4
8.396; m_Gaia
13.22920±0.00024; m_B
15.180±0.051

Mission: K2 : Observed in Campaign 4

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	Livingston et al. 2019	Gaia DR2	Dressing et al. 2017	Crossfield et al. 2016	Kruse et al. 2019	Kruse et al. 2019	Barros et al. 2016
T_eff (K)	4133.130+131.131-166.912	4484+58-50	4110.89+283.31-145.96	4421.975098+93.477318-91.147858	4136±164	---	---	---
M_✶ (M_⦿)	0.6470000+0.1038210-0.0610774	0.629+0.022-0.018	---	0.704613±0.070461	0.562±0.071	---	---	---
R_✶ (R_⦿)	0.6508870+0.1045050-0.0751437	0.619+0.009-0.010	0.6464698+0.0484728-0.0806733	0.634754+0.029302-0.028633	0.494±0.070	0.646 +0.081-0.048	0.646 +0.081-0.048	---
log g (log₁₀(cm/s²))	4.621960+0.144930-0.135793	4.653+0.017-0.014	---	---	4.791±0.066	---	---	---
L_✶ (log₁₀(L_⦿))	-0.9531784+0.0770636-0.0551239	---	-0.968465346+0.003508306-0.003536861	---	---	---	---	---
γ (km/s)	---	---	19.15808389075935±0.97310723024958	---	---	---	---	---
Metallicity (dex)	-0.038±0.092 [M/H]	-0.225±0.053 [Fe/H]	---	---	---	---	---	---
ρ_✶ (g/cm³)	3.3079177+1.2938357-1.2507471	3.74+0.19-0.14	---	---	---	---	---	---

K2-90 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	Dressing et al. 2017	Crossfield et al. 2016	Kruse et al. 2019
a/R_✶	12.02+0.56-0.55	---	14.9 +5.0-2.5
P (days)	2.900706+0.000331-0.000319	2.90032±0.00038	2.90022±0.00015
R_p (R_⨁)	1.30+0.13-0.11	1.02±0.18	1.36±0.19
R_p (R_Jup)	0.116+0.012-0.010	0.0910±0.0161	0.121 +0.017-0.017
R_p/R_✶	0.018733+0.001706-0.001362	0.0188±0.0021	0.0192 +0.0012-0.0022
δ (%)	---	---	0.0389 +0.0022-0.0023
T₁₄ (hours)	---	1.27±0.15	1.30320+0.07920-0.11760
T_C (days)	2457066.740±0.004 (BJD)	2457066.7443±0.0046 (BJD-TDB)	2457063.8466 +0.0020-0.0021 (BJD)
S (S_⨁)	80.8+13.2-11.1	59±20	---
a (au)	0.035±0.001	0.0328±0.0014	---
ω (deg)	56.7600000+79.9411210-129.5691340	---	---
e	0.190000+0.211462-0.153189	---	---
i (deg)	86.94+1.46-0.67	---	---

K2-90 b Planetary Parameters (5 Solutions)

Status: Confirmed Planet

Detected By: Transit

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

Source	Livingston et al. 2019	Dressing et al. 2017	Crossfield et al. 2016	Kruse et al. 2019	Barros et al. 2016
a/R_✶	33.4±0.3	33.90+1.55-1.57	---	35.4 +6.1-2.7	---
P (days)	13.733314+0.000083-0.000099	13.734907+0.000798-0.000802	13.7311±0.0014	13.73288 +0.00042-0.00043	13.71468745
R_p (R_⨁)	2.6±0.1	2.53+0.14-0.13	2.04±0.33	2.64 +0.34-0.29	---
R_p (R_Jup)	0.23±0.01	0.226+0.012-0.012	0.182±0.029	0.236 +0.030-0.026	---
R_p/R_✶	0.038±0.001	0.036516+0.001242-0.000940	0.0372±0.0030	0.0374 +0.0013-0.0029	---
δ (%)	---	---	---	0.1582 +0.0037-0.0038	0.149±0.012
T₁₄ (hours)	2.95±0.07	---	3.08±0.14	2.86080+0.06720-0.08400	4.33900+0.35100-0.35100
T_C (days)	2457078.66112+0.00170-0.00172 (BJD)	2457078.659±0.001 (BJD)	2457078.6648±0.0025 (BJD-TDB)	2457064.929±0.0011 (BJD)	2457064.957466 (BJD)
T_eq (K)	502±8	---	---	---	---
b	0.44±0.05	---	---	---	---
i (deg)	89.24±0.09	89.40+0.36-0.28	---	---	---
a (au)	0.096±0.001	0.100±0.003	0.0926±0.0039	---	---
S (S_⨁)	---	10.2+1.7-1.4	7.5±2.5	---	---
ω (deg)	---	16.4000000+120.0810830-138.6208450	---	---	---
e	---	0.0700000+0.1336970-0.0611030	---	---	---

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

Data Files: 1 SuperWASP Time Series; 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
Spitzer Transit Follow-up of Planet Candidates from the K2 Mission
Livingston et al. 2019 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. II. Planetary Systems Observed During Campaigns 1-7
Dressing et al. 2017 Reference Overview
New planetary and eclipsing binary candidates from campaigns 1-6 of the K2 mission
Barros et al. 2016 Reference Overview
197 Candidates and 104 Validated Planets in K2’s First Five Fields
Crossfield et al. 2016 Reference Overview
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog 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

Aliases
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Transit Prediction Service
Time Series
Kepler | K2

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