HD 26965 Overview
40 Eri B
40 Eri C
HD 26965
0.82
R⦿
5151.00
K
Χ
HD 26965 b
- Architecture
- HD 26965
- 40 Eri B
- 40 Eri C
- HD 26965
- Other Data
- Bibliography 29
- Exoplanet Archive Notes 5
- 40 Eri B Nearby Data 1
- 40 Eri C Nearby Data 1
- HD 26965 Nearby Data 1
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| HD 26965 | HD 26965 b | Radial Velocity | 2018 | Ma et al. 2018 | False Positive Planet |
HD 26965
- This reference contains discussion regarding the stellar multiplicity of this system. (Heintz 1974)
- This reference contains discussion regarding the stellar multiplicity of this system. (Ma et al. 2018)
- This reference contains discussion regarding the stellar multiplicity of this system. (Mugrauer 2019)
- Some stellar parameter values may be biased due to companion blend (WDS Catalog)
- Confirmed planet signal refuted in ref. (Burrows et al. 2024)
- RA
- 04h15m21.97s
- Dec
- -07d39m25.48s
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- -28.43107 deg
- Ecliptic Longitude
- 60.20438 deg
- Galactic Latitude
- -38.02936 deg
- Galactic Longitude
- 200.77164 deg
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV---
-
mTESS9.8820±0.1510
-
mJ9.849±0.029
-
mH9.9860±0.0390
-
mKs9.861±0.071
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mIc---
-
mGaia---
-
mB---
- RA
- 04h15m21.73s
- Dec
- -07d39m17.36s
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- -28.42867 deg
- Ecliptic Longitude
- 60.20381 deg
- Galactic Latitude
- -38.02913 deg
- Galactic Longitude
- 200.76854 deg
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV---
-
mTESS7.843±0.193
-
mJ6.747±0.020
-
mH6.278±0.040
-
mKs5.962±0.026
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mIc---
-
mGaia---
-
mB---
- RA
- 04h15m13.98s
- Dec
- -07d40m03.37s
- Distance
-
5.03545+0.01306-0.01300pc
- Parallax
- 198.566000±0.510134 mas
- Ecliptic Latitude
- -28.43481 deg
- Ecliptic Longitude
- 60.16526 deg
- Galactic Latitude
- -38.06334 deg
- Galactic Longitude
- 200.76332 deg
- Total Proper Motion
- 4089.7570973±0.3876428 mas/yr
- Proper Motion (RA)
- -2240.520000±0.452443 mas/yr
- Proper Motion (Dec)
- -3421.430000±0.356262 mas/yr
- Photometry
-
mV4.42018±0.02300
-
mTESS3.6546±0.0079
-
mJ3.013±0.238
-
mH2.594±0.198
-
mKs2.498±0.236
-
mW19.594±0.029
-
mW28.015±0.035
-
mW38.889±0.098
-
mW48.353
-
mIc3.540
-
mGaia4.1866500±0.0051126
-
mB5.250
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.30±0.24 dex
-
[C/H] 0.03±0.34 dex
-
[O/H] 0.07±0.20 dex
-
[Na/H] -0.20±0.15 dex
-
[Mg/H] -0.02±0.38 dex
-
[Al/H] 0.02±0.24 dex
-
[Si/H] -0.13±0.24 dex
-
[Ca/H] -0.14±0.21 dex
-
[Y/H] -0.33±0.13 dex
-
[BaII/H] -0.33±0.29 dex
| Source | TICv8 |
Ma et al. 2018 |
Gaia DR2 | Turnbull 2015 | Sousa et al. 2008 | Takeda et al. 2007 | Gray et al. 2006 | Valenti & Fischer 2005 | Wright et al. 2004 | Nordstrom et al. 2004 | Gray et al. 2003 | Pizzolato et al. 2003 | Nidever et al. 2002 | Michigan Catalog, Vol. 5 | Henry et al. 1996 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Duncan et al. 1991 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
S Index
|
--- | --- | --- | --- | --- | --- | --- | --- | 0.196±0.025 | --- | --- | --- | --- | --- | 0.185 | 0.2145±0.0061 | 0.2428±0.0108 | 0.1906±0.0040 | 0.1905±0.0065 | 0.1862±0.0047 | 0.2310±0.0060 | 0.1921±0.0054 | 0.2013±0.0071 | 0.2149±0.0114 | 0.2220±0.0137 | 0.2145±0.0061 | 0.2428±0.0108 | 0.1906±0.0040 | 0.1905±0.0065 | 0.1862±0.0047 | 0.2310±0.0060 | --- |
|
CAII LOG RHK
|
--- | --- | --- | --- | --- | --- | --- | --- | -4.90 | --- | --- | --- | --- | --- | -4.94 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
Teff
(K)
|
5092.000+139.555-149.030
|
5072±53 |
5196.0+334.0-184.0
|
5151 | 5153±38 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
L✶
(log10(L⦿))
|
-0.3637834+0.0109267-0.0150792
|
--- |
-0.3398034+0.0019280-0.0019366
|
-0.377 +0.093-0.118
|
-0.379+0.004-0.004
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
Metallicity
(dex)
|
-0.19±0.10 [M/H] | -0.42±0.04 [Fe/H] | --- | -0.28 [Fe/H] | -0.31±0.03 [Fe/H] | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
Age
(Gyr)
|
--- | 6.90±4.70 | --- | 12.2 | --- | >9.28 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
M✶
(M⦿)
|
0.850000+0.107471-0.104462
|
0.78±0.08 | --- | 0.81 | 0.670 |
0.808+0.025-0.008
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
R✶
(R⦿)
|
0.8452480+0.0575251-0.0616809
|
0.870±0.170 |
0.8344737+0.0623950-0.0977567
|
0.82 | --- |
0.82+0.02-0.03
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
log g
(log10(cm/s2))
|
4.5135200+0.1062240-0.0839389
|
4.45±0.19 | --- | 4.55 | 4.39±0.08 |
4.55+0.03-0.02
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
Sp. T
|
--- | K0 V | --- | K0.5V | --- | --- | K0.5 V | --- | --- | --- | K1 V | --- | --- | K0/1 V | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | G5 |
|
γ
(km/s)
|
--- | --- | -42.621134765647426±0.415137706299848 | --- | --- | --- | --- | -42.3 | --- | -43.0±0.1 | --- | --- | -42.3 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
v sin i
(km/s)
|
--- | --- | --- | --- | --- | --- | --- | 0.5±0.5 | --- | 1 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
Prot
(days)
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | 37.10 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
ρ✶
(g/cm3)
|
1.9844151+0.5870418-0.5303527
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
- Status
- False Positive Planet
- Detected By
- Radial Velocity
- Tools
| Source |
Ma et al. 2018 |
|---|---|
|
ω
(deg)
|
148.969+126.051-80.214
|
|
Mp sin i
(M⨁)
|
8.47±0.47 |
|
Mp sin i
(MJup)
|
0.0266±0.0015 |
|
e
|
0.04+0.05-0.03
|
|
P
(days)
|
42.378±0.010 |
|
K
(m/s)
|
1.81±0.10 |
Literature Stellar Spectra
(3 Files)
| File Type | Spectrum Type | Wavelength Category | Reference |
|---|---|---|---|
| Spectra | echelle grating | Optical | California Planet Search |
| Spectra | echelle grating | Optical | California Planet Search |
| Spectra | echelle grating | Optical | California Planet Search |
Literature Time Series
(2 File Types, 4 Files)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 88 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
| Radial Velocity Curve | 92 | Optical Spectra | Howard & Fulton 2016 |
| Radial Velocity Curve | 77 | Optical Spectra | Howard & Fulton 2016 |
| Radial Velocity Curve | 7 | Optical Spectra | Howard & Fulton 2016 |
-
The Death of Vulcan: NEID Reveals That the Planet Candidate Orbiting HD 26965 Is Stellar Activity
Burrows et al. 2024 | Reference Overview -
Search for stellar companions of exoplanet host stars by exploring the second ESA-Gaia data release
Mugrauer 2019 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
The first super-Earth detection from the high cadence and high radial velocity precision Dharma Planet Survey
Ma et al. 2018 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
Limits on Planetary Companions from Doppler Surveys of Nearby Stars
Howard & Fulton 2016 | Reference Overview -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
Sousa et al. 2008 | Reference Overview -
CPS
California Planet Search -
Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog
Takeda et al. 2007 | Reference Overview -
Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
Gray et al. 2006 | Reference Overview -
Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs
Valenti & Fischer 2005 | Reference Overview -
Chromospheric Ca II Emission in Nearby F, G, K, and M Stars
Wright et al. 2004 | Reference Overview -
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages,metallicities and kinematix properties of ~14 000 F and G dwarfs
Nordstrom et al. 2004 | Reference Overview -
Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Northern Sample I
Gray et al. 2003 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
The stellar activity-rotation relationship revisited: Dependence of saturated and non-saturated X-ray emission regimes on stellar mass for late-type dwarfs.
Pizzolato et al. 2003 | Reference Overview -
Radial Velocities of 889 late-type stars
Nidever et al. 2002 | Reference Overview -
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 5
Michigan Catalog, Vol. 5 | Reference Overview -
The Washington Double Star Catalog (WDS, 1996.0)
WDS Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
A Survey of Ca II H and K Chromospheric Emission in Southern Solar-Type Stars
Henry et al. 1996 | Reference Overview -
CA II H and K measurements made at Mount Wilson Observatory, 1966-1983
Duncan et al. 1991 | Reference Overview -
VRI photometry of nearby stars.
Cousins 1980a | Reference Overview -
LHS catalogue. A catalogue of stars with proper motions exceeding 0.5 arcsec annually
Luyten 1979 | Reference Overview -
Astrometric study of four visual binaries.
Heintz 1974 | Reference Overview -
UBVRIJKL Photometry of Bright Stars
Johnson et al. 1966 | Reference Overview -
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
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- Time Series
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