LTT 1445 Overview
LTT 1445 B
0.38
R⦿
LTT 1445 C
0.20
R⦿
LTT 1445 A
0.24
R⦿
3785.02
K
LTT 1445 A c
0.102
RJup
LTT 1445 A b
0.116
RJup
- Architecture
- LTT 1445
- LTT 1445 B
- LTT 1445 C
- LTT 1445 A
- Other Data
- Bibliography 13
- Exoplanet Archive Notes 2
- LTT 1445 B Nearby Data 4
- LTT 1445 C Nearby Data 4
- LTT 1445 A Nearby Data 4
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| LTT 1445 A | LTT 1445 A c | Transit | 2022 | Winters et al. 2021 | Confirmed Planet |
| LTT 1445 A | LTT 1445 A b | Transit | 2019 | Winters et al. 2019 | Confirmed Planet |
LTT 1445
- This reference contains discussion regarding the stellar multiplicity of this system. (Winters et al. 2019)
- Some stellar parameter values may be biased due to companion blend (WDS Catalog)
- RA
- 03h01m51.08s
- Dec
- -16d35m30.67s
- Distance
- 17.94686 pc
- Parallax
- ---
- Ecliptic Latitude
- -32.25696 deg
- Ecliptic Longitude
- 37.35961 deg
- Galactic Latitude
- -58.07432 deg
- Galactic Longitude
- 200.48285 deg
- Total Proper Motion
- 432.6014332±8.0000000 mas/yr
- Proper Motion (RA)
- -338.0±8.0 mas/yr
- Proper Motion (Dec)
- -270.0±8.0 mas/yr
- Photometry
-
mV10.6±0.2
-
mTESS8.554±0.058
-
mJ7.110±0.019
-
mH6.56±0.02
-
mKs6.285±0.020
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mIc---
-
mGaia---
-
mB---
-
mg---
-
mi---
-
mr---
-
mu---
-
mz---
| Source | TICv8 | Winters et al. 2019 |
|---|---|---|
|
ρ✶
(g/cm3)
|
9.26434930±2.08007180 | --- |
|
M✶
(M⦿)
|
0.3741010±0.0562906 | 0.215±0.014 |
|
R✶
(R⦿)
|
0.384692±0.047432 | 0.236±0.027 |
|
log g
(log10(cm/s2))
|
4.8408300±0.0417957 | --- |
- RA
- ---
- Dec
- ---
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- ---
- Ecliptic Longitude
- ---
- Galactic Latitude
- ---
- Galactic Longitude
- ---
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV---
-
mTESS---
-
mJ---
-
mH---
-
mKs---
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mIc---
-
mGaia---
-
mB---
-
mg---
-
mi---
-
mr---
-
mu---
-
mz---
- Tools
| Source | Winters et al. 2019 |
|---|---|
|
M✶
(M⦿)
|
0.161±0.014 |
|
R✶
(R⦿)
|
0.197±0.027 |
- RA
- 03h01m50.99s
- Dec
- -16d35m40.18s
- Distance
- 6.869290±0.003805 pc
- Parallax
- 145.5470000±0.0800058 mas
- Ecliptic Latitude
- -32.25934 deg
- Ecliptic Longitude
- 37.35821 deg
- Galactic Latitude
- -58.07573 deg
- Galactic Longitude
- 200.48712 deg
- Total Proper Motion
- 456.5121099±0.1425326 mas/yr
- Proper Motion (RA)
- -369.196000±0.140193 mas/yr
- Proper Motion (Dec)
- -268.510000±0.146854 mas/yr
- Photometry
-
mV10.590±0.046
-
mTESS8.8429400±0.0078993
-
mJ7.294±0.024
-
mH6.774±0.038
-
mKs6.496±0.021
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mIc---
-
mGaia10.046900±0.001234
-
mB12.304±0.048
-
mg15.3786000±0.0119816
-
mi9.3169000±0.0008559
-
mr10.6150000±0.0007149
-
mu15.7983000±0.0069061
-
mz11.0226000±0.0083714
| Source | Winters et al. 2021 | Winters et al. 2019 | TICv8 | Gaia DR2 | Turnbull 2015 | Hawley et al. 1996 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
3340±150 | 3337±150 | 3384.0±157.0 |
3785.0203+253.8297-222.0703
|
3697 | --- | 3562±83 | ||
|
Sp. T
|
--- | --- | --- | --- | M2.5V | M3 | --- | ||
|
L✶
(log10(L⦿))
|
--- | --- |
-2.04591+0.09585-0.12318
|
--- |
-2.000 +1.000-0.903
|
--- | --- | ||
|
M✶
(M⦿)
|
0.257±0.014 | 0.256±0.014 | 0.2494390±0.0201557 | --- | 0.30 | --- | --- | ||
|
R✶
(R⦿)
|
0.265+0.011-0.010
|
0.276+0.024-0.019
|
0.2759530±0.0082828 | --- | 0.24 | --- | 0.275952994823456±0.008282760000000 | ||
|
Metallicity
(dex)
|
-0.34±0.09 [Fe/H] | -0.34±0.08 [Fe/H] | --- | --- | --- | --- | --- | ||
|
γ
(km/s)
|
--- | -5.4323±0.0021 | --- | --- | --- | --- | --- | ||
|
v sin i
(km/s)
|
--- | <3.4 | --- | --- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
--- | 17.3±3.9 | 16.7349201±0.1518594 | --- | --- | --- | --- | ||
|
log g
(log10(cm/s2))
|
--- |
4.967+0.061-0.075
|
4.9533600±0.0090908 | --- | --- | --- | 4.973890±0.060229 |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Winters et al. 2021 |
|---|---|
|
a/R✶
|
21.56+0.78-0.82
|
|
Teq
(K)
|
508±25 |
|
b
|
0.937+0.012-0.016
|
|
S
(S⨁)
|
10.9+2.4-2.0
|
|
Mp
(M⨁)
|
1.54+0.20-0.19
|
|
Mp
(MJup)
|
0.00485+0.00063-0.00060
|
|
e
|
<0.223 |
|
i
(deg)
|
87.43+0.18-0.29
|
|
P
(days)
|
3.1239035+0.0000034-0.0000036
|
|
ρ
(g/cm3)
|
5.57+0.68-0.60
|
|
Rp
(R⨁)
|
1.147+0.055-0.054
|
|
Rp
(RJup)
|
0.1023+0.0049-0.0048
|
|
Rp/R✶
|
0.0396+0.0018-0.0017
|
|
K
(m/s)
|
1.67+0.21-0.20
|
|
a
(au)
|
0.02661+0.00047-0.00049
|
|
δ
(%)
|
0.157+0.015-0.014
|
|
T14
(hours)
|
0.482±0.026 |
|
TC
(days)
|
2458412.58159+0.00059-0.00057
|
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Winters et al. 2021 | Winters et al. 2019 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|
|
a/R✶
|
30.9+1.1-1.2
|
29.6+2.6-2.5
|
--- | ||
|
Teq
(K)
|
424±21 |
433+28-27
|
403.740154057577 | ||
|
b
|
0.17+0.15-0.12
|
0.29+0.23-0.20
|
--- | ||
|
S
(S⨁)
|
5.4+1.2-1.0
|
--- | 6.27955370949943 | ||
|
Mp
(M⨁)
|
2.87+0.26-0.25
|
2.2+1.7-2.1
|
--- | ||
|
Mp
(MJup)
|
0.00903+0.00082-0.00079
|
0.0069+0.0053-0.0066
|
--- | ||
|
e
|
<0.110 |
0.19+0.35-0.14
|
--- | ||
|
i
(deg)
|
89.68+0.22-0.29
|
89.40+0.41-0.46
|
--- | ||
|
P
(days)
|
5.3587657+0.0000043-0.0000042
|
5.35882+0.00030-0.00031
|
5.35877595248221±0.00000754897100 | ||
|
ρ
(g/cm3)
|
7.1+1.2-1.1
|
4.4+4.0-4.2
|
--- | ||
|
Rp
(R⨁)
|
1.305+0.066-0.061
|
1.38+0.13-0.12
|
1.44541540651259±0.29846486000000 | ||
|
Rp
(RJup)
|
0.1164+0.0059-0.0054
|
0.123+0.012-0.011
|
0.128951547442007±0.026627297163604 | ||
|
Rp/R✶
|
0.0451+0.0014-0.0013
|
0.0458+0.0012-0.0011
|
--- | ||
|
K
(m/s)
|
2.60±0.21 |
2.1+1.6-2.0
|
--- | ||
|
a
(au)
|
0.03813+0.00068-0.00070
|
0.03807+0.00068-0.00071
|
--- | ||
|
δ
(%)
|
0.203±0.012 | 0.2498±0.0168 | 0.27084393715462±0.01327808700000 | ||
|
T14
(hours)
|
1.367+0.017-0.016
|
1.38±0.03 | 1.369776439469±0.147485540000 | ||
|
TC
(days)
|
2458412.70851+0.00040-0.00039
|
2458423.42629+0.00044-0.00045
|
2459168.2952740±0.0007279 | ||
|
ω
(deg)
|
--- |
-139+120-76
|
--- |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 94 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 2 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 2 Associated Literature Data
- Known Objects
- 2 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 2 Associated Literature Data
- Known Objects
- 2 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 2 Associated Literature Data
-
A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds
Winters et al. 2021 -
Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M-dwarf System at 6.9 pc
Winters et al. 2019 -
The Revised TESS Input Catalog and Candidate Target List
TICv8 -
Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M-dwarf System at 6.9 pc
Winters et al. 2019 -
Gaia Data Release 2
Gaia DR2 -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 -
All WISE Data Release
Cutri et al. 2014 -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog -
The Washington Double Star Catalog (WDS, 1996.0)
WDS Catalog -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs -
The Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
Hawley et al. 1996
- 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
