K2-87 Overview

K2-87 0.93 R_⦿ 5406.00 K

K2-87 b

0.678 R_Jup

Overview Notes System Parameters Nearby Data Legend

Architecture: K2-87; K2-87

Other Data: Bibliography 9; Exoplanet Archive Notes 1; Nearby Data 5

Discovery Data

Host	Planet	Method	Year	Reference	Disposition
K2-87	K2-87 b	Transit	2016	Crossfield et al. 2016	Confirmed Planet

Exoplanet Archive Notes (1)

K2-87 b

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

K2-87 Stellar Parameters (6 Solutions)

RA: 04h24m56.73s

Dec: +18d49m38.50s

Distance: 491.242+7.054-6.861
pc

Parallax: 2.0070600±0.0286106 mas

Ecliptic Latitude: -2.7791 deg

Ecliptic Longitude: 67.54762 deg

Galactic Latitude: -20.81553 deg

Galactic Longitude: 177.29046 deg

Total Proper Motion: 29.3310226±0.0494747 mas/yr

Proper Motion (RA): 25.9654000±0.0522634 mas/yr

Proper Motion (Dec): -13.6421000±0.0376819 mas/yr

Photometry: m_V
14.136±0.137; m_TESS
12.9285±0.0094; m_J
11.811±0.020; m_H
11.359±0.022; m_Ks
11.197±0.019; m_Kep
13.691; m_W1
11.121±0.022; m_W2
11.155±0.020; m_W3
11.334±0.209; m_W4
8.389; m_Gaia
13.707800±0.000213; m_B
15.313±0.019; m_g
15.5875000±0.0058783; m_i
13.4564000±0.0041089; m_r
13.8658000±0.0019291; m_u
16.9399000±0.0097921; m_z
13.6222000±0.0066189

Mission: K2 : Observed in Campaigns 4, 13

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

Source	TICv8	Livingston et al. 2019	Gaia DR2	Crossfield et al. 2016	Kruse et al. 2019	ExoFOP-TESS TOI	Show Candidate Solutions >>	<< Hide Candidate Solutions
T_eff (K)	5583.560+104.605-132.053	5747+58-49	4443.000+152.827-105.500	5406±168	---	5583.6±118.3
M_✶ (M_⦿)	0.9900000+0.1257580-0.1258090	1.164+0.042-0.044	---	0.9470±0.0570	---	---
R_✶ (R_⦿)	1.4528800+0.0828206-0.0662899	1.401+0.083-0.062	1.5081881+0.0742589-0.0986368	0.930±0.290	1.508 +0.099-0.074	1.45±0.07
log g (log₁₀(cm/s²))	4.1092400+0.0911138-0.0667503	4.208+0.032-0.035	---	4.47±0.18	---	4.11±0.08
L_✶ (log₁₀(L_⦿))	0.26679901+0.01553737-0.02442458	---	-0.097689000+0.014938867-0.015471040	---	---	---
Metallicity (dex)	0.3484450±0.0130817 [M/H]	0.328+0.051-0.045 [Fe/H]	---	---	---	---
ρ_✶ (g/cm³)	0.4551046+0.1148710-0.0952742	0.59+0.07-0.08	---	---	---	---

K2-87 b Planetary Parameters (4 Solutions)

Status: Confirmed Planet
Detected By: Transit

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

Source	Livingston et al. 2019	Crossfield et al. 2016	Kruse et al. 2019	ExoFOP-TESS TOI	Show Candidate Solutions >>	<< Hide Candidate Solutions
S (S_⨁)	---	85.0±54.0	---	361.739
P (days)	9.726618±0.000055	9.72739±0.00087	9.72664 +0.00031-0.00032	9.7266500±0.0000246
R_p (R_⨁)	7.6±0.4	4.6±1.5	8.42 +0.79-0.72	7.238710±0.399353
R_p (R_Jup)	0.68±0.04	0.41±0.13	0.751 +0.070-0.064	0.6457956±0.0356279
R_p/R_✶	0.050±0.001	0.0441±0.0032	0.0512±0.0035	---
a (au)	0.094±0.001	0.0876±0.0018	---	---
T₁₄ (hours)	4.56±0.05	4.24±0.16	4.68000+0.19200-0.24000	4.584±0.529
T_C (days)	2457072.30232±0.00171	2457072.3012±0.0034	2457062.5749 +0.0014-0.0013	2460243.1905010±0.0079088
a/R_✶	14.4±0.3	---	13.0 +3.1-3.7	---
T_eq (K)	979.0±28.0	---	---	1214
b	0.57±0.03	---	---	---
i (deg)	87.74±0.17	---	---	---
δ (%)	---	---	0.2692±0.0051	0.22870000±0.00831154

Nearby Data (5 Data Types within 30 arcseconds)

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

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

Bibliography (9 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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