AU Mic Overview

AU Mic 0.70 R⦿ 3753.00 K
AU Mic b
AU Mic c
Architecture
AU Mic
AU Mic
AU Mic b
AU Mic c
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 c Transit 2021 Martioli et al. 2021 Confirmed 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
305.31069 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
6.59
mGaia
7.840380±0.000731
mB
10.209±0.036
Source Zicher et al. 2022 Gilbert et al. 2022 Cale et al. 2021 Martioli et al. 2021 Klein et al. 2021 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)
3700±100 --- --- 3700±100 3700±100 3700±100 ---
3992.3599+149.7026-166.3396
3753 --- --- --- --- 3588±87
L
(log10(L⦿))
-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⦿)
0.50±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⦿)
0.75±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)
7.8±0.3 --- --- --- 7.8±0.3 8.7±0.2 --- --- --- --- --- --- --- ---
Age
(Gyr)
0.022±0.003 --- --- 0.022±0.003 0.022±0.003 0.022±0.003 --- --- --- --- --- --- --- ---
Prot
(days)
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)
---
1.67+0.38-0.34
--- --- --- --- 2.7446639±0.1642603 --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.39±0.03 --- --- --- 4.39±0.03 --- 4.5712500±0.0128232 --- --- --- --- --- --- 4.6019800±0.0633204
Status
Confirmed Planet
Detected By
Radial Velocity, Transit, Transit Timing Variations
Source Cale et al. 2021 Zicher et al. 2022 Gilbert et al. 2022 Martioli et al. 2021 Klein et al. 2021 Plavchan et al. 2020 ExoFOP-TESS TOI Show Candidate Solutions >> << Hide Candidate Solutions
ω
(deg)
88.528±0.218
179+128-125
-20+140-130
--- --- --- ---
Mp
(M)
20.12+1.57-1.72
11.7±5.0 --- 17±5
17.1+4.7-4.5
--- ---
Mp
(MJup)
0.06330+0.00494-0.00541
0.0368±0.0157 --- 0.053±0.016
0.0538+0.0148-0.0142
--- ---
e
0.186+0.036-0.035
0.040+0.045-0.025
0.12+0.16-0.08
0 ---
0.10+0.17-0.09
---
P
(days)
8.4629991 8.463000±0.000002
8.4630004+0.0000058-0.0000060
8.463000±0.000002 8.46321 8.46321±0.00004 ---
ρ
(g/cm3)
1.32+0.19-0.20
0.97±0.43 --- 1.4±0.4 1.3±0.4 <4.4 ---
K
(m/s)
10.23+0.88-0.91
5.8±2.5 ---
8.50+2.30-2.20
8.50+2.30-2.20
<28 ---
a
(au)
0.0645±0.0013 ---
0.0644+0.0056-0.0054
0.0645±0.0013 ---
0.066+0.007-0.006
---
TC
(days)
2458330.39046 2458330.39051±0.00015
2458330.39080+0.00058-0.00057
2458330.39051±0.00015 ---
2458330.39153+0.00070-0.00068
2459041.28174600±0.00095672
i
(deg)
--- ---
89.18+0.53-0.45
89.5±0.3 89.5±0.4 --- ---
a/R
--- ---
18.5+1.3-1.4
19.1±0.3 ---
19.1+1.8-1.6
---
b
--- ---
0.26+0.13-0.17
0.18±0.11 ---
0.16+0.14-0.11
---
Mp sin i
(M)
--- --- --- --- --- <57 ---
Mp sin i
(MJup)
--- --- --- --- --- <0.18 ---
Rp
(R)
--- ---
4.19+0.24-0.22
4.07±0.17 --- 4.20±0.20 4.02692583280562±0.21189068000000
Rp
(RJup)
--- ---
0.374+0.021-0.020
0.363±0.015 --- 0.375±0.018 0.359258878267639±0.018903652854001
Rp/R
--- --- 0.0512±0.0020 0.0496±0.0007 --- 0.0514±0.0013 ---
T14
(hours)
--- ---
3.56+0.60-0.46
3.50±0.08 ---
3.50+0.63-0.59
3.57380057446±0.06982116400
Teq
(K)
--- --- --- 593±21 --- --- 754.624093544796
S
(S)
--- --- --- --- --- --- 76.6379131651693
δ
(%)
--- --- --- --- --- --- 0.287228875253504±0.021704503000000
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Source Cale et al. 2021 Zicher et al. 2022 Gilbert et al. 2022 Martioli et al. 2021
a/R
--- ---
31.7+2.6-2.7
29±3
Teq
(K)
--- --- --- 454±16
b
--- ---
0.30+0.21-0.20
0.51±0.21
Mp
(M)
9.600+2.070-2.310
22.2±6.7 --- 13.6±11.4
Mp
(MJup)
0.03020+0.00651-0.00727
0.0698±0.0211 --- 0.0428±0.0359
e
---
0.041+0.047-0.026
0.13+0.16-0.09
0
i
(deg)
--- ---
89.39+0.40-0.38
89.0+0.5-0.4
P
(days)
18.858991 18.8590190±0.0000016
18.858982+0.000053-0.000050
18.859019±0.000016
ρ
(g/cm3)
1.22+0.26-0.29
3.66±1.28 ---
2.3+1.8-1.9
Rp
(R)
--- ---
2.79+0.31-0.30
3.24±0.16
Rp
(RJup)
--- ---
0.249+0.028-0.027
0.289±0.014
Rp/R
--- ---
0.0340+0.0034-0.0033
0.0395±0.0011
K
(m/s)
3.68+0.87-0.86
8.5±2.5 ---
5.2+4.3-4.4
a
(au)
0.1101±0.0020 --- 0.110±0.010 0.1101±0.0022
T14
(hours)
--- ---
4.42+0.92-0.67
4.5±0.8
TC
(days)
2458342.2243 2458342.22231±0.00050
2458342.2239+0.0017-0.0019
2458342.2223±0.0005
ω
(deg)
---
153+124-94
-20+140-130
---
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
2 Confirmed Planets
3 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
2 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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