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AU Mic Overview

AU Mic 0.70 R⦿ 3753.00 K
AU Mic b
0.353 RJup
AU Mic d
AU Mic c
0.225 RJup
?
AU Mic e
Architecture
AU Mic
AU Mic
AU Mic b
AU Mic d
AU Mic c
AU Mic e
Other Data
Bibliography 24
Exoplanet Archive Notes 2
Nearby Data 5
Discovery Data
Host Planet Method Year Reference Disposition
AU Mic AU Mic b Transit 2020 Plavchan et al. 2020 Confirmed Planet
AU Mic AU Mic d Transit Timing Variations 2023 Wittrock et al. 2023 Confirmed Planet
AU Mic AU Mic c Transit 2021 Martioli et al. 2021 Confirmed Planet
AU Mic AU Mic e Radial Velocity 2023 Donati et al. 2023 Candidate Planet
AU Mic
  • Some stellar parameter values may be biased due to companion blend (WDS Catalog)
AU Mic c
  • Planet mass, planet density, and RV semi-amplitude value/uncertainties estimated from range given in ref. (Martioli et al. 2021)
RA
20h45m09.87s
Dec
-31d20m32.82s
Distance
9.722100±0.004625 pc
Parallax
102.8290000±0.0485613 mas
Ecliptic Latitude
-12.82465 deg
Ecliptic Longitude
305.30682 deg
Galactic Latitude
-36.80401 deg
Galactic Longitude
12.65304 deg
Total Proper Motion
456.8630854±0.0628010 mas/yr
Proper Motion (RA)
281.4240000±0.0750541 mas/yr
Proper Motion (Dec)
-359.8950000±0.0539548 mas/yr
Photometry
mV
8.81±0.10
mTESS
6.755±0.032
mJ
5.436±0.017
mH
4.831±0.016
mKs
4.529±0.020
mW1
4.449±0.277
mW2
4.008±0.166
mW3
4.313±0.014
mW4
4.140±0.026
mIc
---
mGaia
7.840380±0.000731
mB
10.209±0.036
Tools
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source Wittrock et al. 2023 Donati et al. 2023 Zicher et al. 2022 Gilbert et al. 2022 Cale et al. 2021 Martioli et al. 2021 Klein et al. 2021 Hirano et al. 2020 Plavchan et al. 2020 TICv8 Gaia DR2 Turnbull 2015 Pizzolato et al. 2003 Hawley et al. 1996 Michigan Catalog, Vol. 3 Cannon & Pickering 1918 ExoFOP-TESS TOI Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
3678+90-88
 3665±31 3700±100 --- --- 3700±100 3700±100 --- 3700±100 ---
3992.3599+149.7026-166.3396
 3753 --- --- --- --- 3588±87
L✶
(log10(L⦿))
-1.038+0.049-0.049
 -0.99±0.01
-1.0+0.1-0.1
 --- --- ---
-1.0+0.1-0.1
 --- -1 ---
-1.0646184+0.0004074-0.0004078
-1.046 +0.368-0.477
--- --- --- --- ---
M✶
(M⦿)
0.510+0.028-0.027
 0.60±0.04 0.50±0.03 --- 0.50±0.03 0.50±0.03 0.50±0.03 --- 0.50±0.03 0.6620740±0.0204762 --- 0.54 --- --- --- --- ---
R✶
(R⦿)
0.744+0.023-0.021
 0.82±0.02 0.75±0.03
0.750+0.029-0.030
 --- 0.75±0.03 0.75±0.03 --- 0.75±0.03 0.6980090±0.0210957
0.61359823+0.05451321-0.04355186
 0.70 --- --- --- --- 0.6980090±0.0210957
Sp. T
--- --- --- --- --- --- M1 --- --- --- --- M1VE --- M0.0 M1 VE K5 ---
v sin i
(km/s)
--- 8.5±0.2 7.8±0.3 --- --- --- 7.8±0.3
9.230+0.790-0.310
 8.7±0.2 --- --- --- --- --- --- --- ---
Age
(Gyr)
0.0201+0.0025-0.0024
 0.0185±0.0024 0.022±0.003 --- --- 0.022±0.003 0.022±0.003 --- 0.022±0.003 --- --- --- --- --- --- --- ---
Prot
(days)
--- 4.856±0.003 4.86±0.01 4.85±0.03 --- 4.863±0.010 4.86±0.01 --- 4.863±0.010 --- --- --- 4.85 --- --- --- ---
γ
(km/s)
--- --- --- --- --- --- --- --- --- --- -6.3103105566262805±0.2868232871415796 --- --- --- --- --- ---
ρ✶
(g/cm3)
1.75+0.14-0.16
 --- ---
1.67+0.38-0.34
 --- --- --- --- --- 2.7446639±0.1642603 --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.404+0.026-0.031
 4.52±0.05 4.39±0.03 --- --- --- 4.39±0.03 --- --- 4.5712500±0.0128232 --- --- --- --- --- --- 4.6019800±0.0633204
Metallicity
(dex)
0.23+0.24-0.30
[Fe/H] 		0.12±0.10 [M/H] --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit, Transit Timing Variations
Tools
Transit Prediction Service
TOI
Transit
Source Wittrock et al. 2023 Donati et al. 2023 Zicher et al. 2022 Gilbert et al. 2022 Cale et al. 2021 Martioli et al. 2021 Klein et al. 2021 Hirano et al. 2020 Plavchan et al. 2020 ExoFOP-TESS TOI Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
18.79+0.50-0.59
 --- ---
18.5+1.3-1.4
 --- 19.1±0.3 ---
19.34+0.45-0.59
19.1+1.8-1.6
 ---
b
0.134+0.096-0.089
 --- ---
0.26+0.13-0.17
 --- 0.18±0.11 ---
0.18+0.07-0.03
0.16+0.14-0.11
 ---
Mp sin i
(M⨁)
--- --- --- --- --- --- --- --- <57 ---
Mp sin i
(MJup)
--- --- --- --- --- --- --- --- <0.18 ---
e
0.00577±0.00101 ---
0.040+0.045-0.025
0.12+0.16-0.08
0.186+0.036-0.035
 0 --- 0
0.10+0.17-0.09
 ---
P
(days)
8.46308±0.00006 8.4631427 8.463000±0.000002
8.4630004+0.0000058-0.0000060
 8.4629991 8.463000±0.000002 8.46321 8.46321 8.46321±0.00004 ---
ρ
(g/cm3)
--- --- 0.97±0.43 ---
1.32+0.19-0.20
 1.4±0.4 1.3±0.4 --- <4.4 ---
Rp
(R⨁)
3.96±0.15 --- ---
4.19+0.24-0.22
 --- 4.07±0.17 --- --- 4.20±0.20 4.02692583280562±0.21189068000000
Rp
(RJup)
0.353±0.013 --- ---
0.374+0.021-0.020
 --- 0.363±0.015 --- --- 0.375±0.018 0.359258878267639±0.018903652854001
Rp/R✶
0.0488±0.0010 --- --- 0.0512±0.0020 --- 0.0496±0.0007 --- 0.0514 0.0514±0.0013 ---
K
(m/s)
---
4.5+1.7-1.2
 5.8±2.5 ---
10.23+0.88-0.91
8.50+2.30-2.20
8.50+2.30-2.20
 --- <28 ---
a
(au)
0.0649±0.0012 --- ---
0.0644+0.0056-0.0054
 0.0645±0.0013 0.0645±0.0013 --- ---
0.066+0.007-0.006
 ---
T14
(hours)
3.4927+0.0074-0.0067
 --- ---
3.56+0.60-0.46
 --- 3.50±0.08 --- ---
3.50+0.63-0.59
 3.57380057446±0.06982116400
TC
(days)
2458525.04109+0.00052-0.00051
 --- 2458330.39051±0.00015
2458330.39080+0.00058-0.00057
 2458330.39046 2458330.39051±0.00015 --- 2458651.99275±0.00061
2458330.39153+0.00070-0.00068
 2459041.28174600±0.00095672
ω
(deg)
88.43038±0.05783 ---
179+128-125
-20+140-130
 88.528±0.218 --- --- --- --- ---
Mp
(M⨁)
---
10.2+3.9-2.7
 11.7±5.0 ---
20.12+1.57-1.72
 17±5
17.1+4.7-4.5
 --- --- ---
Mp
(MJup)
---
0.0321+0.0123-0.0085
 0.0368±0.0157 ---
0.06330+0.00494-0.00541
 0.053±0.016
0.0538+0.0148-0.0142
 --- --- ---
Teq
(K)
600+17-16
 --- --- --- --- 593±21 --- --- --- 754.624093544796
i
(deg)
89.57917±0.37639 --- ---
89.18+0.53-0.45
 --- 89.5±0.3 89.5±0.4 --- --- ---
Tp
(days)
2458322.77+0.83-2.30
 2458330.38416 --- --- --- --- --- --- --- ---
λ
(deg)
--- --- --- --- --- --- ---
-4.70+6.80-6.40
 --- ---
S
(S⨁)
21.2+2.5-2.4
 --- --- --- --- --- --- --- --- 76.6379131651693
δ
(%)
0.2379+0.0100-0.0099
 --- --- --- --- --- --- --- --- 0.287228875253504±0.021704503000000
Print
Status
Confirmed Planet
Detected By
Tools
Source Wittrock et al. 2023
ω
(deg)
160.78945±2.59947
Mp
(M⨁)
1.053±0.511
Mp
(MJup)
0.00331±0.00161
e
0.00305±0.00104
i
(deg)
89.31812±1.15800
P
(days)
12.73596±0.00793
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Transit Prediction Service
Transit
Source Wittrock et al. 2023 Donati et al. 2023 Zicher et al. 2022 Gilbert et al. 2022 Cale et al. 2021 Martioli et al. 2021
Mp
(M⨁)
---
14.2+4.8-3.5
 22.2±6.7 ---
9.600+2.070-2.310
 13.6±11.4
Mp
(MJup)
---
0.0447+0.0151-0.0110
 0.0698±0.0211 ---
0.03020+0.00651-0.00727
 0.0428±0.0359
P
(days)
18.85969±0.00008 18.85882 18.8590190±0.0000016
18.858982+0.000053-0.000050
 18.858991 18.859019±0.000016
ρ
(g/cm3)
--- --- 3.66±1.28 ---
1.22+0.26-0.29
2.3+1.8-1.9
K
(m/s)
---
4.8+1.6-1.2
 8.5±2.5 ---
3.68+0.87-0.86
5.2+4.3-4.4
a
(au)
0.1108±0.0020 --- --- 0.110±0.010 0.1101±0.0020 0.1101±0.0022
TC
(days)
2458342.2240+0.0019-0.0018
 --- 2458342.22231±0.00050
2458342.2239+0.0017-0.0019
 2458342.2243 2458342.2223±0.0005
a/R✶
32.05+0.86-1.00
 --- ---
31.7+2.6-2.7
 --- 29±3
Teq
(K)
459+13-12
 --- --- --- --- 454±16
b
0.30+0.13-0.19
 --- ---
0.30+0.21-0.20
 --- 0.51±0.21
e
0.00338±0.00164 ---
0.041+0.047-0.026
0.13+0.16-0.09
 --- 0
i
(deg)
89.22655±0.21654 --- ---
89.39+0.40-0.38
 ---
89.0+0.5-0.4
Rp
(R⨁)
2.52±0.25 --- ---
2.79+0.31-0.30
 --- 3.24±0.16
Rp
(RJup)
0.225±0.022 --- ---
0.249+0.028-0.027
 --- 0.289±0.014
Rp/R✶
0.0311±0.0028 --- ---
0.0340+0.0034-0.0033
 --- 0.0395±0.0011
T14
(hours)
4.236±0.029 --- ---
4.42+0.92-0.67
 --- 4.5±0.8
Tp
(days)
2458324.0+2.9-3.7
 2459454.8973 --- --- --- ---
ω
(deg)
223.28438±1.68357 ---
153+124-94
-20+140-130
 --- ---
S
(S⨁)
7.3+0.9-0.8
 --- --- --- --- ---
δ
(%)
0.0970+0.0180-0.0170
 --- --- --- --- ---
Print
Status
Candidate Planet
Detected By
Radial Velocity
Tools
Source Donati et al. 2023
Tp
(days)
2459117.1±0.9
Mp sin i
(M⨁)
35.2+6.7-5.4
Mp sin i
(MJup)
0.111+0.021-0.017
P
(days)
33.39±0.10
K
(m/s)
11.1+2.1-1.7
Print
Literature Stellar Spectra (1 File)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical California Planet Search
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     80 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
3 Confirmed Planets
3 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
3 Associated Literature Data
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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