Fomalhaut Overview

Fomalhaut B 0.69 R⦿ 4617.31 K
Fomalhaut C 0.23 R⦿ 3172.00 K
Fomalhaut 1.92 R⦿ 8399.00 K
Fomalhaut b
Architecture
Fomalhaut
Fomalhaut B
Fomalhaut C
Fomalhaut
Fomalhaut b
Discovery Data
Host Planet Method Year Reference Disposition
Fomalhaut Fomalhaut b Imaging 2008 Kalas et al. 2008 False Positive Planet
Fomalhaut
  • This reference contains discussion regarding the stellar multiplicity of this system. (Mamajek 2012)
  • This reference contains discussion regarding the stellar multiplicity of this system. (Mamajek et al. 2013)
Fomalhaut Fomalhaut b
RA
22h56m24.45s
Dec
-31d33m58.49s
Distance
7.60648±0.00499 pc
Parallax
131.4380000±0.0856406 mas
Ecliptic Latitude
-22.79579 deg
Ecliptic Longitude
332.7282 deg
Galactic Latitude
-64.61868 deg
Galactic Longitude
15.93528 deg
Total Proper Motion
365.6195738±0.1130627 mas/yr
Proper Motion (RA)
329.577000±0.115848 mas/yr
Proper Motion (Dec)
-158.293000±0.100096 mas/yr
Photometry
mV
6.48±0.03
mTESS
5.4128±0.0068
mJ
4.533±0.037
mH
3.804±0.210
mKs
3.805±0.240
mW1
---
mW2
---
mW3
---
mW4
---
mIc
---
mGaia
6.0763500±0.0014683
mB
7.586±0.018
Source TICv8
Teff
(K)
4617.310+106.208-110.135
L
(log10(L⦿))
-0.7069726+0.0155102-0.0182783
Metallicity
(dex)
0.0453846±0.0499230 [M/H]
ρ
(g/cm3)
3.0997287+0.7833065-0.7571486
M
(M⦿)
0.7300000+0.0717938-0.0998661
R
(R⦿)
0.6924500+0.0446950-0.0472045
log g
(log10(cm/s2))
4.6206100+0.0858942-0.0886350
RA
22h48m04.87s
Dec
-24d22m10.57s
Distance
7.67271±0.00442 pc
Parallax
130.3030000±0.0745599 mas
Ecliptic Latitude
-15.46958 deg
Ecliptic Longitude
334.02148 deg
Galactic Latitude
-62.1553 deg
Galactic Longitude
31.63169 deg
Total Proper Motion
379.2346516±0.1129551 mas/yr
Proper Motion (RA)
331.899000±0.113268 mas/yr
Proper Motion (Dec)
-183.472000±0.111925 mas/yr
Photometry
mV
12.639±0.026
mTESS
9.7816600±0.0074452
mJ
8.075±0.023
mH
7.527±0.055
mKs
7.206±0.021
mW1
---
mW2
---
mW3
---
mW4
---
mIc
---
mGaia
11.135700±0.000958
mB
14.365±0.066
Source TICv8
Teff
(K)
3172.0±157.0
L
(log10(L⦿))
-2.3176+0.1003-0.1306
ρ
(g/cm3)
23.1757116±0.2539816
M
(M⦿)
0.1992360±0.0200993
R
(R⦿)
0.2297030±0.0069063
log g
(log10(cm/s2))
5.0151000±0.0178388
RA
22h57m39.02s
Dec
-29d37m19.40s
Distance
7.70 pc
Parallax
129.87 mas
Ecliptic Latitude
-21.13542 deg
Ecliptic Longitude
333.85637 deg
Galactic Latitude
-64.9095 deg
Galactic Longitude
20.48857 deg
Total Proper Motion
367.6098475±8.0000000 mas/yr
Proper Motion (RA)
329.0±8.0 mas/yr
Proper Motion (Dec)
-164.0±8.0 mas/yr
Photometry
mV
1.160
mTESS
1.537±0.800
mJ
1.037±0.234
mH
0.9370±0.2560
mKs
0.9450±0.2860
mW1
---
mW2
---
mW3
---
mW4
---
mIc
1.075
mGaia
---
mB
-0.120±0.237
Source Swastik et al. 2021 TICv8 Turnbull 2015 Beust et al. 2014 Kalas et al. 2008 Gray et al. 2006 Garrison & Beattie 1998 Cannon & Pickering 1918
Teff
(K)
8508+43-12
8515.4810±35.1802 8399 --- --- --- --- ---
L
(log10(L⦿))
--- --- 1.217±0.001 --- --- --- --- ---
M
(M⦿)
--- --- 2.05 1.92 2 --- --- ---
R
(R⦿)
--- --- 1.92 --- --- --- --- ---
log g
(log10(cm/s2))
4.02+0.01-0.02
--- 4.14 --- --- --- --- ---
Sp. T
--- --- A3V --- A3 V A4 V A3 Va A3
Metallicity
(dex)
0.13+0.05-0.03
[Fe/H]
--- --- --- --- --- --- ---
v sin i
(km/s)
75.31+0.57-0.14
--- --- --- 3.9 --- --- ---
Age
(Gyr)
--- --- --- --- 0.2±0.1 --- --- ---
Status
False Positive Planet
Detected By
Imaging
Tools
Source Kalas et al. 2008
Mp
(M)
826±286
Mp
(MJup)
2.6±0.9
e
>0.13
P
(days)
318000
a
(au)
119
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     73 Hp (Hipparcos) Hipparcos and Tycho Catalogs
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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