LHS 1678 Overview
LHS 1678
0.34
R⦿
3450.00
K
LHS 1678 b
0.061
RJup
LHS 1678 c
0.084
RJup
LHS 1678 d
0.088
RJup
LHS 1678 B
- Architecture
- LHS 1678
- LHS 1678
- LHS 1678 B
- Other Data
- Bibliography 4
- Exoplanet Archive Notes 3
- LHS 1678 Nearby Data 3
- LHS 1678 B Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| LHS 1678 | LHS 1678 b | Transit | 2021 | Silverstein et al. 2022 | Confirmed Planet |
| LHS 1678 | LHS 1678 c | Transit | 2021 | Silverstein et al. 2022 | Confirmed Planet |
| LHS 1678 | LHS 1678 d | Transit | 2024 | Silverstein et al. 2024 | Confirmed Planet |
LHS 1678
- Stellar age value/uncertainties estimated from range given in ref. (Silverstein et al. 2022)
- Orbital eccentricity, planet mass and density are two-sigma upper limits. (Silverstein et al. 2022)
- Orbital eccentricity, planet mass and density are two-sigma upper limits. (Silverstein et al. 2022)
- RA
- 04h32m42.96s
- Dec
- -39d47m27.15s
- Distance
- 19.8782±0.0094 pc
- Parallax
- 50.2773000±0.0236008 mas
- Ecliptic Latitude
- -60.56612 deg
- Ecliptic Longitude
- 54.46078 deg
- Galactic Latitude
- -42.91686 deg
- Galactic Longitude
- 243.29836 deg
- Total Proper Motion
- 996.9452302±0.0500662 mas/yr
- Proper Motion (RA)
- 239.4100000±0.0414089 mas/yr
- Proper Motion (Dec)
- -967.7720000±0.0505479 mas/yr
- Photometry
-
mV12.6±0.2
-
mTESS10.4276000±0.0073249
-
mJ9.020001±0.032000
-
mH8.501±0.047
-
mKs8.264±0.029
-
mGaia11.540300±0.000509
| Source | Silverstein et al. 2022 | TICv8 | ExoFOP-TESS TOI | ExoFOP-TESS TOI | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
3490±50 | 3563.0±157.0 | 3450±111 | 3450±111 | 3450±111 | ||
|
R✶
(R⦿)
|
0.329±0.010 | 0.3381900±0.0104196 | 0.338189989328384±0.010419600000000 | 0.338189989328384±0.010419600000000 | 0.338189989328384±0.010419600000000 | ||
|
log g
(log10(cm/s2))
|
--- | 4.8856500±0.0009483 | 4.890440±0.492117 | 4.890440±0.492117 | 4.890440±0.492117 | ||
|
L✶
(log10(L⦿))
|
-1.84+0.01-0.01
|
-1.77972+0.09311-0.11867
|
--- | --- | --- | ||
|
γ
(km/s)
|
11.4667±0.0259 | --- | --- | --- | --- | ||
|
v sin i
(km/s)
|
0.53 | --- | --- | --- | --- | ||
|
Age
(Gyr)
|
7+2-3
|
--- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
13.9±1.5 | 11.68388±0.33442 | --- | --- | --- | ||
|
M✶
(M⦿)
|
0.345±0.014 | 0.3205560±0.0204311 | --- | --- | --- | ||
|
CAII LOG RHK
|
-6.087±0.548 | --- | --- | --- | --- | ||
|
Sp. T
|
M2.0 V | --- | --- | --- | --- | ||
|
Prot
(days)
|
64±22 | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Silverstein et al. 2024 | Silverstein et al. 2022 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|
|
Teq
(K)
|
--- | --- | 830.440581380087 | ||
|
S
(S⨁)
|
94.30+9.10-8.10
|
93.20+9.30-8.40
|
112.397139084467 | ||
|
P
(days)
|
0.8602325+0.0000013-0.0000011
|
0.8602322±0.0000068 | 0.860240578952471±0.000010231897000 | ||
|
Rp
(R⨁)
|
0.685+0.037-0.035
|
0.696±0.044 | 0.971879488175763±0.563762660000000 | ||
|
Rp
(RJup)
|
0.0611+0.0033-0.0031
|
0.0621±0.0039 | 0.0867054297074276±0.0502956223307620 | ||
|
δ
(%)
|
--- | --- | 0.0719535770786458±0.0064780250000000 | ||
|
T14
(hours)
|
0.801+0.046-0.049
|
0.774+0.068-0.085
|
0.512434461523044±0.160438200000000 | ||
|
TC
(days)
|
2458998.15553+0.00070-0.00071
|
2459121.168814342+0.005220000-0.003850000
|
2458411.47362700±0.00040477 | ||
|
a/R✶
|
8.08+0.29-0.28
|
8.16+0.29-0.30
|
--- | ||
|
b
|
0.21+0.16-0.14
|
0.24±0.16 | --- | ||
|
ω
(deg)
|
-23.0+140.0-103.0
|
6.00+126.00-132.00
|
--- | ||
|
Mp
(M⨁)
|
--- | <0.35 | --- | ||
|
Mp
(MJup)
|
--- | <0.0011 | --- | ||
|
e
|
0.033+0.035-0.023
|
<0.25 | --- | ||
|
i
(deg)
|
88.53+1.02-1.14
|
87.55+1.60-1.43
|
--- | ||
|
ρ
(g/cm3)
|
--- | <6.0 | --- | ||
|
Rp/R✶
|
0.01905+0.00087-0.00080
|
0.0192±0.0010 | --- | ||
|
a
(au)
|
0.01239+0.00056-0.00057
|
0.01251+0.00059-0.00056
|
--- |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Silverstein et al. 2024 | Silverstein et al. 2022 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|
|
Teq
(K)
|
--- | --- | 510.904079282393 | ||
|
S
(S⨁)
|
13.5+1.3-1.2
|
13.5+1.3-1.2
|
16.1019503402701 | ||
|
P
(days)
|
3.6942840+0.0000048-0.0000044
|
3.6942470+0.0000024-0.0000021
|
3.69426040883462±0.00001084446500 | ||
|
Rp
(R⨁)
|
0.941+0.051-0.050
|
0.9820+0.0640-0.0630
|
1.04284069552705±0.43906880000000 | ||
|
Rp
(RJup)
|
0.0840+0.0045-0.0045
|
0.08761+0.00571-0.00562
|
0.0930361754951590±0.0391711621021883 | ||
|
δ
(%)
|
--- | --- | 0.0832822592104649±0.0065355650000000 | ||
|
T14
(hours)
|
1.23+0.10-0.07
|
1.26+0.10-0.12
|
1.12785211360107±0.27371076000000 | ||
|
TC
(days)
|
2458998.45607+0.00064-0.00057
|
2459120.360616833+0.003990000-0.003100000
|
2458411.06751700±0.00086534 | ||
|
a/R✶
|
21.36+0.78-0.75
|
21.56+0.76-0.79
|
--- | ||
|
b
|
0.44+0.09-0.14
|
0.39+0.14-0.21
|
--- | ||
|
ω
(deg)
|
23.0+109.0-143.0
|
-1.00±120.00 | --- | ||
|
Mp
(M⨁)
|
--- | <1.4 | --- | ||
|
Mp
(MJup)
|
--- | <0.0044 | --- | ||
|
e
|
0.039+0.040-0.025
|
<0.22 | --- | ||
|
i
(deg)
|
88.82+0.40-0.26
|
89.09+0.57-0.46
|
--- | ||
|
ρ
(g/cm3)
|
--- | <10.6 | --- | ||
|
Rp/R✶
|
0.0262+0.0011-0.0012
|
0.0272+0.0015-0.0016
|
--- | ||
|
a
(au)
|
0.0327±0.0015 |
0.0331+0.0016-0.0015
|
--- |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Silverstein et al. 2024 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|
|
a/R✶
|
26.01+0.94-0.91
|
--- | ||
|
b
|
0.76+0.04-0.06
|
--- | ||
|
S
(S⨁)
|
9.1+0.9-0.8
|
10.8558881982889 | ||
|
ω
(deg)
|
23.0+109.0-132.0
|
--- | ||
|
e
|
0.036+0.060-0.027
|
--- | ||
|
i
(deg)
|
88.31+0.14-0.13
|
--- | ||
|
P
(days)
|
4.9652229+0.0000096-0.0000075
|
4.96520685527644±0.00001884956300 | ||
|
Rp
(R⨁)
|
0.9810+0.0700-0.0720
|
0.856692464166333±2.662542800000000 | ||
|
Rp
(RJup)
|
0.08752+0.00624-0.00642
|
0.0764291140376692±0.2375365674418549 | ||
|
Rp/R✶
|
0.0273+0.0017-0.0018
|
--- | ||
|
a
(au)
|
0.0400+0.0018-0.0017
|
--- | ||
|
T14
(hours)
|
1.00+0.11-0.08
|
0.936152358432916±0.775467460000000 | ||
|
TC
(days)
|
2459000.45806+0.00090-0.00087
|
2458414.56293300±0.00136307 | ||
|
Teq
(K)
|
--- | 462.952133709335 | ||
|
δ
(%)
|
--- | 0.0633058084917184±0.0110265656000000 |
- RA
- 04h32m42.96s
- Dec
- -39d47m27.15s
- Distance
- 19.8782±0.0094 pc
- Parallax
- ---
- Ecliptic Latitude
- -60.56612 deg
- Ecliptic Longitude
- 54.4608 deg
- Galactic Latitude
- -42.91685 deg
- Galactic Longitude
- 243.29836 deg
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV---
-
mTESS---
-
mJ---
-
mH---
-
mKs---
-
mGaia---
- Known Objects
- 3 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 3 Associated Literature Data
- Known Objects
- 3 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 3 Associated Literature Data
-
Validation of a Third Planet in the LHS 1678 System
Silverstein et al. 2024 | Reference Overview -
The LHS 1678 System: Two Earth-sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc
Silverstein et al. 2022 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI
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- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
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- Kepler | K2
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