K2-77

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
K2-77
K2-77 b	8.2 d	2.5 R_⨁	Transit	2016	Crossfield et al. 2016	Confirmed Planet

K2-77 Stellar Parameters (9 Solutions)

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RA: 03h40m54.85s

Dec: +12d34m20.81s

Distance: 141.731+0.874-0.863
pc

Parallax: 7.0270300±0.0428976 mas

Ecliptic Latitude: -6.84596 deg

Ecliptic Longitude: 55.89697 deg

Galactic Latitude: -32.85522 deg

Galactic Longitude: 174.46686 deg

Total Proper Motion: 44.1100491±0.0786434 mas/yr

Proper Motion (RA): 22.557800±0.116735 mas/yr

Proper Motion (Dec): -37.9057000±0.0595745 mas/yr

Photometry: m_V
12.224±0.057; m_TESS
11.2867±0.0061; m_J
10.384±0.020; m_H
9.910±0.023; m_Ks
9.799±0.018; m_Kep
11.896; m_W1
9.733±0.023; m_W2
9.790±0.019; m_W3
9.773±0.054; m_W4
8.736; m_Gaia
11.920200±0.000644; m_B
13.229±0.030; m_g
12.717±0.019; m_i
11.531±0.060; m_r
11.813±0.087

Abundances (Hypatia Catalog): [Fe/H] 0.26±0.04 dex; [Mg/H] 0.19±0.07 dex

Mission: K2 : Observed in Campaign 4

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

Source	Thygesen et al. 2023	TICv8	Gaia DR2	Mayo et al. 2018	Gaidos et al. 2017	Crossfield et al. 2016	Kruse et al. 2019	Rizzuto et al. 2017	ExoFOP
T_eff (K)	5160.0±130.0	4865.6000+81.8602-121.1590	4816.825+99.175-71.315	5070.0±50.0	4970±45	5297±251	---	---	4865.6±101.5
M_✶ (M_⦿)	0.847+0.039-0.038	0.7930000+0.1244210-0.0707274	---	0.851503 +0.019379-0.024182	0.80±0.12	0.870±0.070	---	---	---
R_✶ (R_⦿)	0.792+0.027-0.025	0.7934760+0.0842784-0.0589829	0.78249454+0.02369540-0.03125340	0.783982 +0.024020-0.014492	0.76±0.03	0.830±0.080	0.782 +0.031-0.024	---	0.793475985527039±0.071630600000000
log g (log₁₀(cm/s²))	4.569+0.030-0.033	4.5382700+0.1140170-0.0920026	---	4.67±0.1	4.47±0.13	4.544±0.060	---	---	4.54±0.10
L_✶ (log₁₀(L_⦿))	-0.397+0.041-0.042	-0.4976918+0.0667177-0.0409030	-0.52729909+0.00378993-0.00382329	---	-0.500+0.034-0.037	---	---	---	---
Metallicity (dex)	0.130+0.078-0.076 [Fe/H]	0.237±0.023 [M/H]	---	0.12±0.08 [Fe/H]	0.29±0.06 [Fe/H]	---	---	---	---
γ (km/s)	---	---	7.101932789881879±0.679181217845588	---	7.35±0.20	---	---	---	---
v sin i (km/s)	---	---	---	---	4.0	---	---	---	---
Age (Gyr)	4.7+5.2-3.4	---	---	---	0.85±0.45	---	---	---	---
ρ_✶ (g/cm³)	2.41+0.25-0.24	2.2378878+0.7568582-0.5317724	---	---	2.5±0.4	---	---	---	---
P_rot (days)	---	---	---	---	19.8±2.9	---	---	---	---

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K2-77 b Planetary Parameters (7 Solutions)

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Status: Confirmed Planet

Detected By: Transit

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

Source	Thygesen et al. 2023	Mayo et al. 2018	Gaidos et al. 2017	Crossfield et al. 2016	Kruse et al. 2019	Rizzuto et al. 2017	ExoFOP
a/R_✶	20.46+0.68-0.69	23.465690 +2.549332-7.083635	23.2+6.4-2.3	---	22.3 +5.7-2.8	---	---
b	0.55+0.19-0.33	---	0.46+0.24-0.30	---	---	---	---
S (S_⨁)	---	---	58±7	83.0±23.0	---	---	58.2025038460349
ω (deg)	-40.00+100.00-130.00	---	1.00+106.00-114.00	---	---	---	---
M_p (M_⨁)	---	---	<604	---	---	---	---
M_p (M_Jup)	---	---	<1.9	---	---	---	---
e	0.29+0.37-0.19	---	0.14+0.22-0.09	---	---	---	---
i (deg)	88.33+0.83-0.37	88.927359 +0.802105-1.673981	88.7±0.8	---	---	---	---
P (days)	8.2000844+0.0000086-0.0000073	8.199814 +0.000364-0.000367	8.199796+0.000683-0.000719	8.20075±0.00060	8.20023±0.00023	8.2008	8.20008746058802±0.00001893538100
R_p (R_⨁)	2.50+0.17-0.12	2.49801044545 +0.125823197564-0.0940232346265	2.30±0.16	2.47±0.29	2.53 +0.18-0.35	---	2.79975418515657±0.91415950000000
R_p (R_Jup)	0.223+0.015-0.011	0.2228575649 +0.0112251938-0.0083881912	0.205±0.014	0.220±0.026	0.226 +0.016-0.031	---	0.249777768388572±0.081555988404905
R_p/R_✶	0.0288+0.0016-0.0011	0.029212 +0.001168-0.000958	0.0278+0.0022-0.0011	0.0270±0.0018	0.0296 +0.0017-0.0040	---	---
T₁₄ (hours)	2.5440+0.0672-0.0552	---	2.40+0.35-0.75	2.469±0.091	2.56320+0.07440-0.09600	---	2.4601180544368±0.3954947600000
T_C (days)	2457316.80766+0.00099-0.00096 (BJD-TDB)	2457070.80648 +0.001511-0.001449	2457070.80596+0.00190-0.00179 (BJD)	2457070.8042±0.0026 (BJD-TDB)	2457062.60496 +0.00099-0.00102 (BJD)	2457062.6123 (BJD)	2458440.21954300±0.00213335 (BJD)
T_eq (K)	806.0±18.0	---	---	---	---	---	704.458099223305
a (au)	0.0753±0.0011	---	---	0.0760±0.0020	---	---	---
δ (%)	0.0831+0.0097-0.0060	---	---	---	0.1007 +0.0024-0.0025	0.06	0.107959272671764±0.010098737000000

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Nearby Data (within 30 arcseconds) Browse Nearby Data

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

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

Bibliography (12 References)

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The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission
Thygesen et al. 2023 Reference Overview
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
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
Zodiacal Exoplanets in Time (ZEIT). V. A Uniform Search for Transiting Planets in Young Clusters Observed by K2
Rizzuto et al. 2017 Reference Overview
ExoFOP TOI Table
ExoFOP
Zodiacal exoplanets in time (ZEIT) - II. A `super-Earth' orbiting a young K dwarf in the Pleiades Neighbourhood
Gaidos et al. 2017 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

Legend

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System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive

Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2

External Link
Search
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Download

Debug Info

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https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/9/K2-77.json

Catalog Parameters

RA

ra

03h40m54.85s

Dec

dec

+12d34m20.81s

β

elat

-6.84596

λ

elon

55.89697

b

glat

-32.85522

l

glon

174.46686

m_V

sy_vmag

12.224±0.057

m_TESS

sy_tmag

11.2867±0.0061

m_J

sy_jmag

10.384±0.020

m_H

sy_hmag

9.910±0.023

m_Ks

sy_kmag

9.799±0.018

m_Kep

sy_kepmag

11.896

m_W1

sy_w1mag

9.733±0.023

m_W2

sy_w2mag

9.790±0.019

m_W3

sy_w3mag

9.773±0.054

m_W4

sy_w4mag

8.736

sy_icmag

no_data

m_Gaia

sy_gaiamag

11.920200±0.000644

m_B

sy_bmag

13.229±0.030

m_g

sy_gmag

12.717±0.019

m_i

sy_imag

11.531±0.060

m_r

sy_rmag

11.813±0.087

sy_umag

no_data

sy_zmag

no_data

μ

sy_pm

44.1100491±0.0786434

μ_δ

sy_pmdec

-37.9057000±0.0595745

μ_α

sy_pmra

22.557800±0.116735

π

sy_plx

7.0270300±0.0428976

Distance

sy_dist

141.731+0.874-0.863

Set Parameters

R_✶

st_rad

0.830±0.080

T_eff

st_teff

5297±251

K2-77 Overview

K2-77 Architecture & Discovery Information

K2-77