51 Peg Overview

51 Peg 1.29 R⦿ 5773.00 K
51 Peg b
Architecture
51 Peg
51 Peg
51 Peg b
Discovery Data
Host Planet Method Year Reference Disposition
51 Peg 51 Peg b Radial Velocity 1995 Mayor & Queloz 1995 Confirmed Planet
51 Peg
RA
22h57m28.21s
Dec
+20d46m08.74s
Distance
15.4614±0.0297 pc
Parallax
64.648800±0.123201 mas
Ecliptic Latitude
25.18633 deg
Ecliptic Longitude
354.28512 deg
Galactic Latitude
-34.7275 deg
Galactic Longitude
90.06374 deg
Total Proper Motion
216.4603396±0.2040787 mas/yr
Proper Motion (RA)
207.363000±0.207151 mas/yr
Proper Motion (Dec)
62.094000±0.166006 mas/yr
Photometry
mV
5.45309±0.02300
mTESS
4.8576±0.0069
mJ
4.655±0.296
mH
4.234±0.270
mKs
3.911±0.021
mW1
3.909±0.387
mW2
3.624±0.246
mW3
3.929±0.016
mW4
3.904±0.024
mGaia
5.286470±0.002768
mB
6.104±0.020
Source Rosenthal et al. 2021 TICv8 Gaia DR2 Turnbull 2015 Maldonado et al. 2015 Martins et al. 2015 Sanz-Forcada et al. 2010 Takeda et al. 2007 Gray et al. 2006 Valenti & Fischer 2005 Wright et al. 2004 Nordstrom et al. 2004 Naef et al. 2004 Gray et al. 2003 Santos et al. 2003 Nidever et al. 2002 Fuhrmann et al. 1997 Henry et al. 1996 Mayor & Queloz 1995 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Duncan et al. 1991 Cannon & Pickering 1918
S Index
--- --- --- --- --- --- --- --- --- --- 0.148±0.019 --- --- --- --- --- --- 0.166 --- 0.1554 0.1671±0.0009 0.1580±0.0030 0.1604±0.0013 0.1481±0.0040 0.1474±0.0016 0.1506±0.0026 0.1611±0.0040 0.1628 0.1595±0.0022 0.1554 0.1671±0.0009 0.1580±0.0030 0.1604±0.0013 ---
CAII LOG RHK
--- --- --- --- --- --- --- --- --- --- -5.08 --- --- --- --- --- --- -4.97 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Teff
(K)
5760.76290103000±95.49206000705
5758.000+101.623-119.624
5830.0+214.0-55.0
5787 5786±15 --- --- --- --- --- --- --- --- --- 5805 --- 5793±70 --- 5773 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Metallicity
(dex)
0.20578539957000003±0.05986965753325001 [Fe/H] 0.18±0.10 [M/H] --- 0.2 [Fe/H] 0.20±0.02 [Fe/H] --- --- --- --- --- --- --- --- --- 0.21 [Fe/H] --- 0.20±0.07 [Fe/H] --- 0.20 [M/H] --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
v sin i
(km/s)
--- --- --- --- --- --- --- --- --- 2.6±0.5 --- 2 --- --- --- --- 2.0 --- 2.2±1.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Age
(Gyr)
--- --- --- 6.76 --- --- 15
6.76+1.64-1.48
--- --- --- --- --- --- --- --- 4.0±2.5 --- 10 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
R
(R⦿)
1.1867440275400001±0.0277028364840500
1.1756100+0.0673608-0.0353276
1.1609589+0.0222188-0.0807567
1.15 --- --- --- 1.15±0.04 --- --- --- --- --- --- --- --- 1.20 --- 1.29 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.31735258730000±0.03084871457625
4.3103800+0.0812461-0.0625947
--- 4.36 4.34±0.04 --- ---
4.36+0.04-0.03
--- --- --- --- --- --- 4.51 --- 4.33±0.1 --- 4.32 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Prot
(days)
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 30 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
M
(M⦿)
1.0692960810299998±0.0474389516249000
1.0300000+0.1666990-0.0854185
--- 1.05 --- 1.04 ---
1.054+0.039-0.036
--- --- --- --- --- --- 1.04 --- 1.12±0.06 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Sp. T
--- --- --- G5V --- --- --- --- G2 V+ --- --- --- --- G3 V --- --- G2.5 IV --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- G0
L
(log10(L⦿))
---
0.13630954+0.00741580-0.01524743
0.14700266+0.00125609-0.00125977
0.161±0.012 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
γ
(km/s)
--- --- -33.24426497896846±0.42964159507662 --- --- -33.152 --- --- --- -32.4 --- -33.7±0.1 -33.2516±0.0006 --- --- -33.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
ρ
(g/cm3)
---
0.89373820+0.19618580-0.15014090
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Butler et al. 2006 Rosenthal et al. 2021 Martins et al. 2015 Naef et al. 2004 Mayor & Queloz 1995
ω
(deg)
58.0
6.0+60.0-69.0
0 0±0 ---
Mp sin i
(M)
150.009±12.395 147±4 143 148.738±2.225 149±6
Mp sin i
(MJup)
0.472±0.039 0.464±0.014 0.450 0.468±0.007 0.47±0.02
e
0.013±0.012
0.0042+0.0046-0.0030
0 0±0 0
P
(days)
4.230785±0.000036
4.23079690+7.30000000-7.80000000
4.231 4.23077±0.00004 4.2293±0.0011
K
(m/s)
55.94±0.69
55.73+0.32-0.30
55.2 57.3±0.8 59±3
a
(au)
0.0527±0.0030
0.05235+0.00076-0.00079
0.052 0.052 ---
TC
(days)
--- 2455705.001±0.006 --- --- ---
Tp
(days)
2450001.51±0.61 --- 2456021.256 2452497.0±0.022 2449797.773±0.036
Mp
(M)
--- --- 145 --- ---
Mp
(MJup)
--- --- 0.457 --- ---
Mp
(M)
--- ---
146+19-3
--- ---
Mp
(MJup)
--- ---
0.46+0.06-0.01
--- ---
i
(deg)
--- ---
80+10-19
--- ---
Literature Stellar Spectra (4 Files)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Spectra     Infrared Beichman et al. 2006
Literature Time Series (2 File Types, 6 Files)
File Type Data Points Filter Reference
Photometric Light Curve     165 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Radial Velocity Curve     202 Optical Spectra Howard & Fulton 2016
Radial Velocity Curve     41 Optical Spectra Howard & Fulton 2016
Radial Velocity Curve     256 Optical Spectra Butler et al. 2006
Radial Velocity Curve     153 Optical Spectra Naef et al. 2004
Radial Velocity Curve     111 Optical Spectra Marcy et al. 1997
Known Objects
1 Confirmed Planets
2 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
1 Associated Literature Data
System
Star
Confirmed
Candidate
Refuted
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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