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HD 80653 Overview

  • Star: HD 80653
    • Stellar Radius: 1.20 Solar Radius
    • Stellar Effective Temperature: 5959.00 K
    • Planet: HD 80653 b
      • Disposition Confirmed
      • Planet Radius 0.145 Jupiter Radius
    • Planet: K2-312 c
      • Disposition Confirmed

HD 80653 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HD 80653
HD 80653 b 0.72 d 1.62 R⨁ Transit 2020 Frustagli et al. 2020 Confirmed Planet
K2-312 c 871.32 d > 1681.31 M⨁ Radial Velocity 2023 Bonomo et al. 2023 Confirmed Planet
RA
09h21m21.38s
Dec
+14d22m04.33s
Distance
109.860+0.811-0.800
pc
Parallax
9.0743500±0.0662085 mas
Ecliptic Latitude
-1.0467 deg
Ecliptic Longitude
138.23096 deg
Galactic Latitude
39.62439 deg
Galactic Longitude
216.49965 deg
Total Proper Motion
36.2761417±0.0875135 mas/yr
Proper Motion (RA)
-33.4626000±0.0897427 mas/yr
Proper Motion (Dec)
-14.0076000±0.0735093 mas/yr
Photometry
mV 9.452±0.003
mTESS 8.89098±0.00630
mJ 8.315±0.023
mH 8.079001±0.029000
mKs 8.018±0.021
mKep 9.438
mW1 7.959±0.024
mW2 8.004±0.020
mW3 8.011±0.021
mW4 7.869±0.204
mGaia 9.307330±0.000346
mB 10.119±0.047
Abundances
(Hypatia Catalog)
[Fe/H] 0.49±0.04 dex
[Mg/H] 0.51±0.07 dex
Mission
K2: Observed in Campaign 16
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Naponiello et al. 2026 Bonomo et al. 2023 Frustagli et al. 2020 TICv8 Gaia DR2 Yu et al. 2018 ExoFOP
Teff
(K)
5959±61 5959±61 ---
5910.000+101.307-152.704
5838.0+50.0-56.0
 6080±130 5910.000±127.006
L✶
(log10(L⦿))
0.2117+0.0185-0.0194
 --- 0.24±0.02
0.23836480+0.01182518-0.01745623
0.23176903+0.00406463-0.00410303
 --- ---
Metallicity
(dex)
0.255±0.065 [Fe/H] 0.255±0.065 [Fe/H] --- --- --- --- ---
v sin i
(km/s)
3.50±0.50 --- --- --- --- --- ---
Age
(Gyr)
3.3+2.7-2.0
 2.67±1.20 2.67±1.20 --- --- --- ---
ρ✶
(g/cm3)
0.9410±0.0950 --- 0.90±0.06
0.7666438+0.1810217-0.1508359
 --- --- ---
M✶
(M⦿)
1.150+0.063-0.069
 1.18±0.04 1.18±0.04
1.075000+0.135535-0.140582
 --- --- ---
R✶
(R⦿)
1.199±0.033 1.22±0.01 1.22±0.01
1.2550500+0.0642025-0.0520889
1.2764652+0.0248679-0.0215870
 1.224±0.016 1.25504994392395±0.05814570000000
log g
(log10(cm/s2))
4.342+0.032-0.037
 --- 4.34±0.02
4.2721600+0.0795258-0.0767927
 --- 4.338±0.033 4.2721600±0.0781593
Sp. T
G0 V --- G2 --- --- --- ---
Prot
(days)
---
19.55+0.57-0.50
 19.8±0.5 --- --- --- ---
γ
(km/s)
--- --- 8.31017±0.00220 --- 8.4907890013659753±0.2566260456854415 --- ---
Print
Status
Confirmed Planet
Detected By
Orbital Brightness Modulation, Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Naponiello et al. 2026 Bonomo et al. 2023 Frustagli et al. 2020 Yu et al. 2018 ExoFOP
P
(days)
0.71957926+0.00000042-0.00000036
 0.719573±0.000021 0.719573±0.000021 0.719597 0.719571209844274±0.000052978325000
δ
(%)
--- --- --- 0.0149 0.0159640398493719±0.0018058200000000
T14
(hours)
1.725+0.029-0.028
 ---
1.80+0.06-0.06
 1.53360 1.75752191994997±0.34870010000000
TC
(days)
2458095.56741+0.00051-0.00052
(BJD)
2458134.42440±0.00070
(BJD-TDB)
2458134.4244±0.0007
(BJD-TDB)
2458095.56479
(BJD)
2459526.0912980±0.0018724
(BJD)
a/R✶
2.973+0.096-0.100
 --- 2.92±0.05 --- ---
b
0.429+0.075-0.107
 ---
0.40+0.08-0.14
 --- ---
Mp
(M⨁)
5.61+0.38-0.37
5.72+0.36-0.35
 5.60±0.43 --- ---
Mp
(MJup)
0.0177+0.0012-0.0012
0.0180+0.0011-0.0011
 0.0176±0.0014 --- ---
i
(deg)
81.7+2.2-1.8
 82.1±2.4 82.1±2.4 --- ---
ρ
(g/cm3)
7.24+0.97-0.81
7.47+1.20-1.00
 7.4±1.1 --- ---
Rp
(R⨁)
1.621+0.054-0.057
 1.613±0.071 1.613±0.071 --- 1.61084174422069±2.43317910000000
Rp
(RJup)
0.1446+0.0048-0.0051
 0.1439±0.0063 0.1439±0.0063 --- 0.143709922189507±0.217074073470391
Rp/R✶
0.01242+0.00022-0.00029
 --- 0.0121±0.0004 --- ---
K
(m/s)
3.66±0.20 3.62±0.21 3.55±0.26 --- ---
a
(au)
0.01657+0.00070-0.00071
 0.01661±0.00019 0.0166±0.0003 --- ---
Teq
(K)
2438+47-45
 2463±30 --- --- 2301.93999511406
ω
(deg)
90 --- --- --- ---
e
0 0 --- --- ---
S
(S⨁)
--- 6130±310 --- --- 6635.85665977611
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
K2 Names
K2 Planets and Candidates
Source Naponiello et al. 2026 Bonomo et al. 2023
a/R✶
338±11 ---
Teq
(K)
229+5-4
 ---
ω
(deg)
41.3±0.5 41.6±2.2
Mp sin i
(M⨁)
1681+64-70
1719+165-140
Mp sin i
(MJup)
5.29+0.20-0.22
5.41+0.52-0.44
e
0.8435±0.0013 0.853±0.011
P
(days)
871.32±0.13 921.2±10.8
K
(m/s)
191.6±1.3
194+17-13
a
(au)
1.882+0.080-0.081
 1.961±0.027
TC
(days)
2458968.72±0.23
(BJD)
2458968.80±0.41
(BJD-TDB)
Print
Known Objects
2 Confirmed Planets
1 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 K2 Time Series
2 Associated Literature Data
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