K2-277

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
K2-277
K2-277 b	6.33 d	2.19 R_⨁	Transit	2018	Livingston et al. 2018	Confirmed Planet

K2-277 Stellar Parameters (11 Solutions)

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RA: 13h28m03.89s

Dec: -15d56m16.71s

Distance: 113.123+0.701-0.691
pc

Parallax: 8.8115100±0.0539824 mas

Ecliptic Latitude: -6.23204 deg

Ecliptic Longitude: 206.26332 deg

Galactic Latitude: 46.02638 deg

Galactic Longitude: 315.66347 deg

Total Proper Motion: 105.0691656±0.0984227 mas/yr

Proper Motion (RA): -98.6744000±0.0978756 mas/yr

Proper Motion (Dec): -36.095600±0.102419 mas/yr

Photometry: m_V
10.364±0.008; m_TESS
9.66562±0.00620; m_J
9.081±0.034; m_H
8.748±0.071; m_Ks
8.687±0.024; m_Kep
10.215; m_W1
8.630±0.023; m_W2
8.675±0.020; m_W3
8.649±0.024; m_W4
8.418±0.261; m_Gaia
10.121400±0.000803; m_B
11.081±0.111

Abundances (Hypatia Catalog): [Fe/H] 0.11±0.05 dex; [C/H] 0.06±0.12 dex; [O/H] 0.02±0.09 dex; [Na/H] -0.06±0.04 dex; [Mg/H] 0.07±0.04 dex; [Al/H] 0.00±0.04 dex; [Si/H] 0.09±0.03 dex; [Ca/H] 0.11±0.06 dex; [Y/H] 0.22±0.08 dex; [BaII/H] 0.11±0.19 dex

Mission: K2 : Observed in Campaign 6

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	Howard et al. 2025	Thygesen et al. 2023	TICv8	Livingston et al. 2018	Gaia DR2	Kruse et al. 2019	Mayo et al. 2018	Petigura et al. 2018	ExoFOP	Pope et al. 2016	Barros et al. 2016
T_eff (K)	5705.0±100.0	5680.0±120.0	5673.000+140.274-130.171	5741±65	5640.2750+128.9750-67.9415	---	5733.0±50.0	---	5673.000±135.223	---	---
L_✶ (log₁₀(L_⦿))	---	-0.0506+0.0228-0.0220	-0.05170340+0.01709769-0.01430425	---	-0.062643940+0.003586293-0.003616165	---	---	---	---	---	---
γ (km/s)	---	---	---	---	7.516308738197685±0.654583360049487	---	---	---	---	---	---
R_✶ (R_⦿)	0.952±0.035	0.9730+0.0380-0.0350	0.97538300+0.04766430-0.05174770	0.97±0.02	0.974383950+0.023905400-0.043078900	0.974 +0.043-0.024	0.946965 +0.058410-0.032929	1.01	0.9753829836845398±0.0497060000000000	---	---
Metallicity (dex)	0.050±0.044 [Fe/H]	0.0780+0.0720-0.0650 [Fe/H]	---	0.11±0.05 [Fe/H]	---	---	0.04±0.08 [Fe/H]	---	---	---	---
ρ_✶ (g/cm³)	---	1.5±0.2	1.5314379+0.3823463-0.2841237	6.9360+3.8190-2.8180	---	---	---	---	---	---	---
M_✶ (M_⦿)	0.980±0.040	0.9740+0.0530-0.0580	1.008000+0.114669-0.146234	1.02±0.03	---	---	---	---	---	---	---
log g (log₁₀(cm/s²))	4.45±0.08	4.452+0.041-0.049	4.4631800+0.0711662-0.0859721	4.48±0.02	---	---	4.51±0.1	---	4.4631800±0.0785692	---	---
Age (Gyr)	---	4.9+4.8-3.4	---	---	---	---	---	---	---	---	---
v sin i (km/s)	2.3±1.0	---	---	---	---	---	---	---	---	---	---
S Index	0.186	---	---	---	---	---	---	---	---	---	---
CAII LOG RHK	-4.875	---	---	---	---	---	---	---	---	---	---

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K2-277 b Planetary Parameters (9 Solutions)

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Status: Confirmed Planet

Detected By: Radial Velocity, Transit

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

Source	Thygesen et al. 2023	Howard et al. 2025	Livingston et al. 2018	Kruse et al. 2019	Mayo et al. 2018	Petigura et al. 2018	ExoFOP	Barros et al. 2016	Pope et al. 2016
T_eq (K)	1049.0±15.0	953.0±25.0	958±14	---	---	---	953.9690748327274	---	---
S (S_⨁)	---	195.0+22.0-20.0	---	---	---	---	195.73035632215132	---	---
M_p (M_⨁)	---	7.40±3.30	---	---	---	---	---	---	---
M_p (M_Jup)	---	0.0233±0.0104	---	---	---	---	---	---	---
P (days)	6.326768+0.000015-0.000012	6.32677±0.00018	6.326763+0.000355-0.000361	6.32669±0.00012	6.326674 +0.000196-0.000203	6.326796 +0.000395-0.000397	6.326680036819368±0.000035812423000	6.32976960	6.327
ρ (g/cm³)	---	4.0±2.0	---	---	---	---	---	---	---
R_p (R_⨁)	2.19+0.20-0.12	2.23+0.14-0.06	2.07±0.12	2.16 +0.14-0.27	2.12171155645 +0.227831410578-0.121507095478	2.2 +0.4-0.2	2.290155372161796±2.260206000000000	---	---
R_p (R_Jup)	0.195+0.018-0.011	0.199+0.012-0.005	0.185±0.011	0.193 +0.012-0.024	0.19 +0.02-0.01	0.20 +0.04-0.02	0.2043143291487509±0.2016424205280325	---	---
T_C (days)	2457303.4771±0.0010 (BJD-TDB)	2457221.2301±0.0012 (BJD)	2457221.22958+0.00221-0.00217 (BJD)	2457221.23116 +0.00076-0.00072 (BJD)	2457221.22996 +0.001256-0.001246 (BJD)	2457221.22953 +0.002411-0.002472 (BJD)	2458575.15819400±0.00200968 (BJD)	2457227.545974 (BJD)	2457221.228 (BJD)
b	0.53+0.28-0.36	---	0.41+0.32-0.28	---	---	0.50 +0.31-0.34	---	---	0.083
R_p/R_✶	0.02045+0.00190-0.00074	---	0.0196+0.0014-0.0008	0.02028 +0.00097-0.00251	0.020541 +0.001806-0.000935	0.0201 +0.0027-0.0012	---	---	0.017952
T₁₄ (hours)	1.9656+0.0672-0.0552	---	---	1.94400+0.04800-0.06000	---	1.82880+0.10080-0.08880	2.0310601147528766±0.5508015000000001	2.48600+0.21900-0.21900	1.67496
a/R_✶	14.68+0.64-0.70	---	24.45+2.50-6.10	22.3 +6.9-2.9	21.901867 +3.291547-7.616262	---	---	---	---
δ (%)	0.0418+0.0079-0.0030	---	---	0.045 +0.00095-0.00094	---	---	0.0520800215446204±0.0068601700000000	0.042±0.003	0.0322
ω (deg)	46.00+96.00-120.00	---	---	---	---	---	---	---	---
e	0.52+0.24-0.26	---	---	---	---	---	---	---	---
i (deg)	86.83+1.60-0.96	---	---	---	88.685884 +0.968318-2.027290	---	---	---	---
a (au)	0.0664+0.0012-0.0013	---	0.0675±0.0006	---	---	---	---	---	---

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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 (14 References)

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Planet Masses, Radii, and Orbits from NASA's K2 Mission
Howard et al. 2025 Reference Overview
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
Sixty Validated Planets from K2 Campaigns 5-8
Livingston et al. 2018 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
Planet Candidates from K2 Campaigns 5─8 and Follow-up Optical Spectroscopy
Petigura et al. 2018 Reference Overview
ExoFOP TOI Table
ExoFOP
New planetary and eclipsing binary candidates from campaigns 1-6 of the K2 mission
Barros et al. 2016 Reference Overview
Transiting exoplanet candidates from K2 Campaigns 5 and 6
Pope 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
Browse
Download

Debug Info

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https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/14/K2-277.json

Catalog Parameters

RA

ra

13h28m03.89s

Dec

dec

-15d56m16.71s

β

elat

-6.23204

λ

elon

206.26332

b

glat

46.02638

l

glon

315.66347

m_V

sy_vmag

10.364±0.008

m_TESS

sy_tmag

9.66562±0.00620

m_J

sy_jmag

9.081±0.034

m_H

sy_hmag

8.748±0.071

m_Ks

sy_kmag

8.687±0.024

m_Kep

sy_kepmag

10.215

m_W1

sy_w1mag

8.630±0.023

m_W2

sy_w2mag

8.675±0.020

m_W3

sy_w3mag

8.649±0.024

m_W4

sy_w4mag

8.418±0.261

sy_icmag

no_data

m_Gaia

sy_gaiamag

10.121400±0.000803

m_B

sy_bmag

11.081±0.111

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

μ

sy_pm

105.0691656±0.0984227

μ_δ

sy_pmdec

-36.095600±0.102419

μ_α

sy_pmra

-98.6744000±0.0978756

π

sy_plx

8.8115100±0.0539824

Distance

sy_dist

113.123+0.701-0.691

Set Parameters

R_✶

st_rad

0.974383950+0.023905400-0.043078900

T_eff

st_teff

5640.2750+128.9750-67.9415

K2-277 Overview

K2-277 Architecture & Discovery Information

K2-277