HD 106315

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HD 106315
HD 106315 b	9.55 d	2.44 R_⨁	Transit	2017	Crossfield et al. 2017	Confirmed Planet
HD 106315 c	21.06 d	4.35 R_⨁	Transit	2017	Crossfield et al. 2017	Confirmed Planet

Exoplanet Archive Notes (1)

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HD 106315 b

Planet also independently announced in this ref. (Rodriguez et al. 2017)

HD 106315 Stellar Parameters (14 Solutions)

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RA: 12h13m53.39s

Dec: -00d23m36.37s

Distance: 109.353+0.691-0.681
pc

Parallax: 9.1162900±0.0569382 mas

Ecliptic Latitude: 1.01948 deg

Ecliptic Longitude: 183.33896 deg

Galactic Latitude: 61.03534 deg

Galactic Longitude: 283.25037 deg

Total Proper Motion: 12.2799626±0.0669336 mas/yr

Proper Motion (RA): -2.662280±0.115067 mas/yr

Proper Motion (Dec): 11.9879000±0.0636243 mas/yr

Photometry: m_V
8.951±0.003; m_TESS
8.56338±0.00610; m_J
8.116±0.026; m_H
7.962±0.040; m_Ks
7.853±0.020; m_Kep
9.234; m_W1
7.794±0.025; m_W2
7.85±0.02; m_W3
7.839±0.022; m_W4
8.168±0.354; m_Gaia
8.888410±0.000251; m_B
9.400±0.038; m_g
10.14±0.19; m_i
8.848±0.060; m_r
9.41±0.29

Abundances (Hypatia Catalog): [Fe/H] -0.40±0.04 dex; [Mg/H] -0.73±0.07 dex

Mission: K2 : Observed in Campaign 10

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	Bourrier et al. 2023	Maxted et al. 2022	Guilluy et al. 2021	TICv8	Zhou et al. 2018	Livingston et al. 2018	Gaia DR2	Mayo et al. 2018	Barros et al. 2017	Crossfield et al. 2017	Rodriguez et al. 2017	ExoFOP	ExoFOP
T_eff (K)	6364.0±87.0	6364±87	6450±105	6256±51	6498.0000+92.7837-161.3480	6244+49-51	6277+52-51	6439.500+245.780-138.167	6321.0±50.0	6327±48	6290±60	6254+55-51	6498.000±127.066	6498.000±127.066
Metallicity (dex)	-0.22±0.09 [Fe/H]	---	-0.090±0.050 [Fe/H]	-0.276±0.083 [Fe/H]	---	-0.270±0.079 [Fe/H]	-0.22±0.07 [Fe/H]	---	-0.23±0.08 [Fe/H]	-0.311±0.079 [Fe/H]	-0.24±0.04 [Fe/H]	-0.278+0.082-0.073 [M/H]	---	---
M_✶ (M_⦿)	1.154±0.042	---	1.091±0.029	1.079±0.037	1.330000+0.261876-0.164687	1.024+0.035-0.037	1.08+0.03-0.04	---	1.119172 +0.054749-0.042932	1.091±0.036	1.07±0.03	1.027+0.034-0.029	---	---
R_✶ (R_⦿)	1.269±0.024	1.269±0.024	1.222±0.045	1.31±0.04	1.2427000+0.0573704-0.0538558	1.299+0.029-0.025	1.29±0.02	1.2559403+0.0556808-0.0906501	1.273595 +0.174357-0.130285	1.296±0.058	1.18±0.11	1.281+0.051-0.058	1.2426999807357788±0.0556131000000000	1.2426999807357788±0.0556131000000000
log g (log₁₀(cm/s²))	4.291±0.025	---	4.28±0.10	4.235±0.030	4.3731900+0.0800306-0.1012840	---	4.25±0.02	---	4.19±0.1	4.252±0.043	4.29±0.07	4.234+0.035-0.033	4.3731900±0.0906573	4.3731900±0.0906573
γ (km/s)	---	---	---	---	---	---	---	-2.7835935624612382±0.2457411014640496	---	-3.34+0.56-0.38	---	-3.65±0.10	---	---
v sin i (km/s)	13.2±1.0	9.660+0.640-0.650	---	---	---	13.00±0.28	12.90±0.40	---	---	12.71±0.40	13.2±1.0	12.9±0.4	---	---
Age (Gyr)	---	4.48±0.96	---	---	---	---	---	---	---	4.48±0.96	4±1	5.91+0.90-0.79	---	---
Sp. T	---	F5	---	F5 V	---	---	---	---	---	F5 V	F5 V	---	---	---
L_✶ (log₁₀(L_⦿))	---	---	---	---	0.39454308+0.01412410-0.02209138	---	---	0.38804133+0.00359708-0.00362714	---	---	0.290+0.077-0.094	0.350+0.034-0.032	---	---
ρ_✶ (g/cm³)	---	---	---	---	0.97706320+0.24257470-0.21223950	---	---	---	---	---	---	---	---	---
S Index	0.14	---	---	---	---	---	---	---	---	---	---	---	---	---

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HD 106315 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	Barros et al. 2017	Howard et al. 2025	Bourrier et al. 2023	Maxted et al. 2022	Livingston et al. 2018	Mayo et al. 2018	Rodriguez et al. 2017	Crossfield et al. 2017	ExoFOP
T_eq (K)	1153±25	1040.0±18.0	---	---	1046±12	---	1146+19-22	---	1025.5665602726144
S (S_⨁)	---	277.0±20.0	---	---	---	---	---	240+48-43	261.44263305001107
P (days)	9.55237±0.00089	9.55288±0.00021	9.55287±0.00021	9.552105	9.55804+0.00165-0.00170	9.554515 +0.001256-0.001368	9.55385+0.00095-0.00072	9.5521+0.0019-0.0018	9.580288838391866±0.000054570533000
R_p (R_⨁)	2.44±0.17	2.4±0.2	---	2.25±0.10	2.32+0.13-0.08	2.32948653804 +0.348183265658-0.255737839625	2.40±0.12	2.23+0.30-0.25	2.3912438759399604±3.3607950000000000
R_p (R_Jup)	0.218±0.015	0.21±0.02	---	0.201±0.009	0.207+0.012-0.007	0.2078228689 +0.0310628304-0.0228154019	0.214±0.011	0.199+0.027-0.022	0.21333285692426612±0.29983056354089360
δ (%)	---	---	---	---	0.03	---	---	---	0.0354209306643356±0.0040471930000000
T₁₄ (hours)	3.775±0.081	---	---	---	3.5	---	3.82+0.98-0.22	3.96+0.17-0.16	3.139282684311792±1.011926000000000
T_C (days)	2457586.5487±0.0029 (BJD-TDB)	2457586.5476+0.0024-0.0025 (BJD)	2457586.5476±0.0025 (BJD-TDB)	2459567.4979±0.0017 (BJD-TDB)	2457586.5267+0.0067-0.0068 (BJD)	2457586.5434 +0.004397-0.004396	2457615.2057±0.0017 (BJD-TDB)	2457605.6521+0.0042-0.0045 (BJD-TDB)	2459554.24382500±0.00282926 (BJD)
a/R_✶	15.07±0.70	---	---	15.92±0.56	17.7+1.6-4.4	18.295501 +2.469815-6.785653	14.86+0.64-0.52	16.70+2.03-4.65	---
b	0.67±0.10	---	---	0.586±0.054	0.40+0.33-0.28	---	0.630+0.080-0.430	0.47+0.31-0.32	---
R_p/R_✶	0.01728±0.00060	---	---	0.01663±0.00048	0.0164+0.0009-0.0005	0.016769 +0.001006-0.000668	0.01717+0.00069-0.00055	0.01708+0.00188-0.00083	---
a (au)	0.0907±0.0010	---	---	---	0.0905±0.0010	---	0.08887+0.00082-0.00093	0.09012+0.00083-0.00085	---
ω (deg)	239+74-200	---	90	---	---	---	67.0+72.0-134.0	---	---
e	0.0930+0.1100-0.0680	---	0	---	---	---	<0.31	---	---
K (m/s)	3.63±0.92	---	2.88+0.85-0.84	2.88±0.85	---	---	---	8.40±2.10	---
i (deg)	87.54±0.32	---	---	87.84±0.23	---	88.504032 +1.082767-2.696094	87.62+1.59-0.44	88.4+1.1-2.1	---
M_p (M_⨁)	12.6±3.2	10.5±3.1	---	10.1±3.0	---	---	---	---	---
M_p (M_Jup)	0.0396±0.0101	0.0330±0.0098	---	0.0318±0.0094	---	---	---	---	---
ρ (g/cm³)	4.7±1.7	4.1+1.9-1.4	---	4.8±1.6	---	---	---	---	---

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HD 106315 c Planetary Parameters (12 Solutions)

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Status: Confirmed Planet

Detected By: Radial Velocity, Transit, Transit Timing Variations

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

Source	Barros et al. 2017	Howard et al. 2025	Kokori et al. 2023	Bourrier et al. 2023	Guilluy et al. 2021	Zhou et al. 2018	Livingston et al. 2018	Mayo et al. 2018	Lendl et al. 2017	Rodriguez et al. 2017	Crossfield et al. 2017	ExoFOP
a/R_✶	25.5±1.2	---	33.4+1.9-5.3	29.5+5.7-4.2	25.10±0.79	24.79+0.43-0.39	34.7+1.2-3.5	32.967845 +3.060265-7.159717	---	25.69+1.20-1.10	33.4+1.9-5.3	---
i (deg)	88.61+0.70-0.25	---	89.4+0.4-0.7	88.89+0.69-0.51	88.17±0.11	88.304+0.057-0.050	---	89.255646 +0.533356-0.833749	---	88.48+0.19-0.18	89.42+0.40-0.67	---
P (days)	21.05704±0.00046	21.05652±0.00012	21.056614±0.000054	21.05652±0.00012	21.05731±0.00046	21.05603+0.00022-0.00026	21.05788+0.00132-0.00133	21.057504 +0.002170-0.001991	21.05683±0.00053	21.0580±0.0022	21.0576+0.0020-0.0019	1221.2709772616424±0.0029605401000
R_p (R_⨁)	4.35±0.23	4.379±0.086	---	---	4.98±0.23	4.786±0.090	4.31+0.10-0.08	4.2940538568 +0.603780112505-0.452571192517	4.05±0.65	4.40+0.25-0.27	3.95+0.42-0.39	4.116103295545322±0.575947700000000
R_p (R_Jup)	0.388±0.021	0.3907±0.0077	---	---	0.444±0.021	0.4270±0.0080	0.385+0.009-0.007	0.3830898257 +0.0538656537-0.0403756974	0.361±0.058	0.393+0.022-0.024	0.352+0.037-0.035	0.3672147723071129±0.0513827006589457
R_p/R_✶	0.03086±0.00100	---	0.0303±0.0016	0.03481±0.00099	0.03481±0.00099	0.03266±0.00032	0.0305+0.0006-0.0004	0.030910 +0.000991-0.000784	0.0315±0.0041	0.03207+0.00090-0.00110	0.03034+0.00163-0.00067	---
T_C (days)	2457569.0173±0.0014 (BJD-TDB)	2457569.01767+0.00097-0.00096 (BJD)	2458432.34123±0.00056 (BJD-TDB)	2457569.01767±0.00097 (BJD-TDB)	2457569.0211±0.0053 (BJD-TDB)	2457611.13292±0.00087 (BJD)	2457590.0732+0.0021-0.0020 (BJD)	2457590.07454 +0.003308-0.003454	2457611.1313±0.0045 (BJD)	2457611.1328+0.0015-0.0014 (BJD-TDB)	2457611.1310±0.0012 (BJD-TDB)	2459569.37608500±0.00222808 (BJD)
λ (deg)	---	---	---	-2.68+2.70-2.60	---	-10.9 +3.6-3.8	---	---	---	---	---	---
T_eq (K)	886±20	799.0±14.0	---	---	---	---	804±9	---	---	874+18-19	---	203.77584712393985
b	0.52+0.17-0.31	---	---	0.688+0.044-0.094	---	---	0.27+0.24-0.19	---	0.43±0.30	0.688+0.044-0.094	0.34+0.28-0.23	---
a (au)	0.1536±0.0017	---	---	---	---	---	0.1533+0.0016-0.0017	---	---	0.1503±0.0015	0.1526±0.0014	---
δ (%)	---	---	---	---	---	---	0.1	---	0.0992±0.0258	---	---	0.100698653019369±0.005595294000000
T₁₄ (hours)	4.638±0.072	---	---	4.728+0.084-0.065	---	---	4.4	---	4.378+0.202-0.170	4.728+0.084-0.065	4.693+0.078-0.062	4.492164897060411±0.307919770000000
ω (deg)	96.0+88.0-35.0	---	---	90	157±140	---	---	---	---	53.0+77.0-134.0	---	---
e	0.22±0.15	---	---	0	0.0520±0.0520	---	---	---	---	<0.18	---	---
K (m/s)	3.43±0.83	---	---	2.53±0.79	---	---	---	---	---	---	4.8±2.0	---
M_p (M_⨁)	15.2±3.7	12.0±3.8	---	---	14.6±4.7	---	---	---	---	---	---	---
M_p (M_Jup)	0.0478±0.0116	0.0378±0.0120	---	---	0.0459±0.0148	---	---	---	---	---	---	---
S (S_⨁)	---	97.0±7.0	---	---	---	---	---	---	---	---	83+16-15	0.40750395740383905
ρ (g/cm³)	1.01±0.29	0.780+0.260-0.250	---	---	---	---	---	---	---	---	---	---

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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 (19 References)

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Planet Masses, Radii, and Orbits from NASA's K2 Mission
Howard et al. 2025 Reference Overview
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 Reference Overview
DREAM. I. Orbital architecture orrery
Bourrier et al. 2023 Reference Overview
Tentative Evidence for Water Vapor in the Atmosphere of the Neptune-sized Exoplanet HD 106315c
Kreidberg et al. 2022 Reference Overview
Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using PYCHEOPS
Maxted et al. 2022 Reference Overview
ARES IV: Probing the Atmospheres of the Two Warm Small Planets HD 106315c and HD 3167c with the HST/WFC3 Camera
Guilluy et al. 2021 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
The Warm Neptunes around HD 106315 Have Low Stellar Obliquities
Zhou et al. 2018 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
44 Validated Planets from K2 Campaign 10
Livingston et al. 2018 Reference Overview
275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
Mayo et al. 2018 Reference Overview
Precise masses for the transiting planetary system HD 106315 with HARPS
Barros et al. 2017 Reference Overview
ExoFOP TOI Table
ExoFOP
Ground-based photometry of the 21-day Neptune HD 106315c
Lendl et al. 2017 Reference Overview
A Multi-planet System Transiting the V = 9 Rapidly Rotating F-Star HD 106315
Rodriguez et al. 2017 Reference Overview
Two Small Transiting Planets and a Possible Third Body Orbiting HD 106315
Crossfield et al. 2017 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_2.0/5/HD_106315.json

Catalog Parameters

RA

ra

12h13m53.39s

Dec

dec

-00d23m36.37s

β

elat

1.01948

λ

elon

183.33896

b

glat

61.03534

l

glon

283.25037

m_V

sy_vmag

8.951±0.003

m_TESS

sy_tmag

8.56338±0.00610

m_J

sy_jmag

8.116±0.026

m_H

sy_hmag

7.962±0.040

m_Ks

sy_kmag

7.853±0.020

m_Kep

sy_kepmag

9.234

m_W1

sy_w1mag

7.794±0.025

m_W2

sy_w2mag

7.85±0.02

m_W3

sy_w3mag

7.839±0.022

m_W4

sy_w4mag

8.168±0.354

sy_icmag

no_data

m_Gaia

sy_gaiamag

8.888410±0.000251

m_B

sy_bmag

9.400±0.038

m_g

sy_gmag

10.14±0.19

m_i

sy_imag

8.848±0.060

m_r

sy_rmag

9.41±0.29

sy_umag

no_data

sy_zmag

no_data

μ

sy_pm

12.2799626±0.0669336

μ_δ

sy_pmdec

11.9879000±0.0636243

μ_α

sy_pmra

-2.662280±0.115067

π

sy_plx

9.1162900±0.0569382

Distance

sy_dist

109.353+0.691-0.681

Set Parameters

R_✶

st_rad

1.273595 +0.174357-0.130285

T_eff

st_teff

6321.0±50.0

HD 106315 Overview

HD 106315 Architecture & Discovery Information

HD 106315