HD 86728 Overview
HD 86728
1.06
R⦿
5700.00
K
HD 86728 b
- Architecture
- HD 86728
- HD 86728
Discovery Data
| Host | Planet | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|---|
| HD 86728 | HD 86728 b | 31.15 d | > 9.43 M⨁ | Radial Velocity | 2025 | Gupta et al. 2025 | Confirmed Planet |
- RA
- 10h01m00.01s
- Dec
- +31d55m18.56s
- Distance
-
14.9202+0.0481-0.0479pc
- Parallax
- 66.995800±0.214123 mas
- Ecliptic Latitude
- 18.51763 deg
- Ecliptic Longitude
- 140.99534 deg
- Galactic Latitude
- 52.85093 deg
- Galactic Longitude
- 195.01832 deg
- Total Proper Motion
- 681.334134±0.249616 mas/yr
- Proper Motion (RA)
- -528.807000±0.274233 mas/yr
- Proper Motion (Dec)
- -429.627000±0.206812 mas/yr
- Photometry
-
mV5.37988±0.02300
-
mTESS4.7727±0.0070
-
mJ4.267±0.328
-
mH4.040±0.258
-
mKs3.821±0.036
-
mGaia5.2094000±0.0028065
-
mB6.045±0.020
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.26±0.16 dex
-
[C/H] 0.20±0.10 dex
-
[O/H] 0.07±0.06 dex
-
[Na/H] 0.24±0.12 dex
-
[Mg/H] 0.32±0.12 dex
-
[Al/H] 0.28±0.09 dex
-
[Si/H] 0.24±0.08 dex
-
[Ca/H] 0.27±0.06 dex
-
[Y/H] 0.24±0.15 dex
-
[BaII/H] 0.09±0.18 dex
| Source | Gupta et al. 2025 | TICv8 | Turnbull 2015 | Takeda et al. 2007 | Valenti & Fischer 2005 | Wright et al. 2004 | Nordstrom et al. 2004 | Gray et al. 2003 | Nidever et al. 2002 | Duncan et al. 1991 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
S Index
|
--- | --- | --- | --- | --- | 0.152±0.020 | --- | --- | --- | 0.1557 | --- |
|
CAII LOG RHK
|
--- | --- | --- | --- | --- | -5.06 | --- | --- | --- | --- | --- |
|
Teff
(K)
|
5610±46 |
5742.000+150.087-138.054
|
5700 | --- | --- | --- | --- | --- | --- | --- | --- |
|
L✶
(log10(L⦿))
|
0.1351+0.0044-0.0045
|
0.13658931+0.01147625-0.01253004
|
0.167 +0.029-0.031
|
--- | --- | --- | --- | --- | --- | --- | --- |
|
Metallicity
(dex)
|
0.20±0.02 [Fe/H] | 0.2±0.1 [M/H] | 0.2 [Fe/H] | --- | --- | --- | --- | --- | --- | --- | --- |
|
Age
(Gyr)
|
--- | --- | 9.52 |
9.520+2.360-3.120
|
--- | --- | --- | --- | --- | --- | --- |
|
M✶
(M⦿)
|
0.967±0.010 |
1.030000+0.146921-0.110163
|
0.96 |
0.960+0.040-0.027
|
--- | --- | --- | --- | --- | --- | --- |
|
R✶
(R⦿)
|
1.237±0.019 |
1.1825500+0.0707734-0.0628347
|
1.06 | 1.06±0.04 | --- | --- | --- | --- | --- | --- | --- |
|
log g
(log10(cm/s2))
|
4.25±0.02 |
4.3052600+0.0919375-0.0729658
|
4.4 |
4.40+0.05-0.04
|
--- | --- | --- | --- | --- | --- | --- |
|
Sp. T
|
--- | --- | G1V | --- | --- | --- | --- | G4 V | --- | --- | G5 |
|
γ
(km/s)
|
--- | --- | --- | --- | 56.0 | --- | 55.8±0.1 | --- | 56.0 | --- | --- |
|
v sin i
(km/s)
|
2.4±0.5 | --- | --- | --- | 3.4±0.5 | --- | 2 | --- | --- | --- | --- |
|
ρ✶
(g/cm3)
|
--- |
0.878092+0.216049-0.186180
|
--- | --- | --- | --- | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
- Planetary Systems
| Source | Gupta et al. 2025 |
|---|---|
|
ω
(deg)
|
92.0+43.0-113.0
|
|
Mp sin i
(M⨁)
|
9.43+0.56-0.57
|
|
Mp sin i
(MJup)
|
0.0297+0.0018-0.0018
|
|
e
|
0.0670+0.0650-0.0460
|
|
P
(days)
|
31.1515+0.0059-0.0066
|
|
K
(m/s)
|
1.97±0.12 |
|
a
(au)
|
0.19160+0.00066-0.00065
|
|
TC
(days)
|
2459260.69+0.51-0.49
(BJD)
|
Literature Time Series
(2 File Types, 4 Files)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 92 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
| Radial Velocity Curve | 59 | Optical Spectra | Howard & Fulton 2016 |
| Radial Velocity Curve | 44 | Optical Spectra | Howard & Fulton 2016 |
| Radial Velocity Curve | 15 | Optical Spectra | Howard & Fulton 2016 |
- Known Objects
- 1 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
-
The NEID Earth Twin Survey. I. Confirmation of a 31 Day Planet Orbiting HD 86728
Gupta et al. 2025 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | 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 -
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 -
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 -
Radial Velocities of 889 late-type stars
Nidever et al. 2002 | Reference Overview -
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 | Reference Overview -
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
CA II H and K measurements made at Mount Wilson Observatory, 1966-1983
Duncan et al. 1991 | 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
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
- External Link
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