AU Mic Overview

AU Mic 0.70 R⦿ 3753.00 K
AU Mic b
0.363 RJup
AU Mic c
0.289 RJup
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
---
mW2
---
mW3
---
mW4
---
mIc
6.59
mGaia
7.840380±0.000731
mB
10.209±0.036
Source Martioli 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
Teff
(K)
3700±100 3700±100 ---
3992.3599+149.7026-166.3396
3753 --- --- --- ---
L
(log10(L⦿))
--- -1 ---
-1.0646184+0.0004074-0.0004078
-1.046 +0.368-0.477
--- --- --- ---
M
(M⦿)
0.50±0.03 0.50±0.03 0.6620740±0.0204762 --- 0.54 --- --- --- ---
R
(R⦿)
0.75±0.03 0.75±0.03 0.6980090±0.0210957
0.61359823+0.05451321-0.04355186
0.70 --- --- --- ---
Sp. T
--- --- --- --- M1VE --- M0.0 M1 VE K5
v sin i
(km/s)
--- 8.7±0.2 --- --- --- --- --- --- ---
Age
(Gyr)
0.022±0.003 0.022±0.003 --- --- --- --- --- --- ---
Prot
(days)
4.863±0.010 4.863±0.010 --- --- --- 4.85 --- --- ---
γ
(km/s)
--- --- --- -6.3103105566262805±0.2868232871415796 --- --- --- --- ---
ρ
(g/cm3)
--- --- 2.7446639±0.1642603 --- --- --- --- --- ---
log g
(log10(cm/s2))
--- --- 4.5712500±0.0128232 --- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Source Martioli et al. 2021 Plavchan et al. 2020
a/R
19.1±0.3
19.1+1.8-1.6
Teq
(K)
593±21 ---
b
0.18±0.11
0.16+0.14-0.11
Mp
(M)
17±5 ---
Mp
(MJup)
0.053±0.016 ---
e
0
0.10+0.17-0.09
i
(deg)
89.5±0.3 ---
P
(days)
8.463000±0.000002 8.46321±0.00004
ρ
(g/cm3)
1.4±0.4 <4.4
Rp
(R)
4.07±0.17 4.20±0.20
Rp
(RJup)
0.363±0.015 0.375±0.018
Rp/R
0.0496±0.0007 0.0514±0.0013
K
(m/s)
8.50+2.30-2.20
<28
a
(au)
0.0645±0.0013
0.066+0.007-0.006
T14
(hours)
3.50±0.08
3.50+0.63-0.59
TC
(days)
2458330.39051±0.00015
2458330.39153+0.00070-0.00068
Mp sin i
(M)
--- <57
Mp sin i
(MJup)
--- <0.18
Status
Confirmed Planet
Detected By
Transit
Source Martioli et al. 2021
a/R
29±3
Teq
(K)
454±16
b
0.51±0.21
Mp
(M)
13.6±11.4
Mp
(MJup)
0.0428±0.0359
e
0
i
(deg)
89.0+0.5-0.4
P
(days)
18.859019±0.000016
ρ
(g/cm3)
2.3+1.8-1.9
Rp
(R)
3.24±0.16
Rp
(RJup)
0.289±0.014
Rp/R
0.0395±0.0011
K
(m/s)
5.2+4.3-4.4
a
(au)
0.1101±0.0022
T14
(hours)
4.5±0.8
TC
(days)
2458342.2223±0.0005
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
Refuted
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
External Link
Search
Browse
Download