Planet HD 189733 Ab

Detailed information about planet HD 189733 Ab and its parameters.

Planet

Name
HD 189733 Ab
Planet Status
Confirmed
Discovered in
2005
Update
2024-07-29
Mass
1.138 ( +0.025 -0.025 ) MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Primary Transit
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary Transit
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
0.4 ( +0.12 -0.11 )
Surface gravity log(g/gH)
Alternate Names
TOI-4470.01
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference
C
Measurements Detected 2024 - FINNERTY L.
Measurements Detected 2023 - DOS SANTOS L.
Measurements Detected 2020 - WILSON CAULEY P.
Measurements Detected 2015 - BENNEKE B.
Ca
Measurements Detected 2022 - LIRA-BARRIA A.
CH4
Measurements Detected 2024 - FINNERTY L.
Measurements Detected 2016 - CRIDLAND A.
Measurements Detected 2008 - SWAIN M.
CO
Measurements Detected 2024 - FINNERTY L.
Measurements Detected 2016 - BROGI M.
Measurements Detected 2016 - CRIDLAND A.
Measurements Detected 2008 - SWAIN M.
CO2
Measurements Detected 2016 - CRIDLAND A.
Fe I
Measurements Detected 2020 - MOUTOU C.
H
Measurements Detected 2013 - BOURRIER V.
Measurements Detected 2012 - JENSEN A.
H2O
Measurements Detected 2024 - FINNERTY L.
Measurements Detected 2018 - BROGI M.
Measurements Detected 2017 - ALLART R.
Measurements Detected 2016 - BROGI M.
Measurements Detected 2016 - CRIDLAND A.
Measurements Detected 2013 - BIRKBY J.
Measurements Detected 2008 - SWAIN M.
H2S
Measurements Detected 2024 - FINNERTY L.
HCN
Measurements Detected 2024 - FINNERTY L.
Measurements Detected 5σ 2019 - CABOT S. H. C.
He
Measurements Detected 2021 - LAMPON M.
Measurements Detected 2020 - GUILLUY G.
Measurements Detected 2018 - SALZ M.
Measurements Detected 2018 - SALZ M.
K
Measurements Detected 2020 - GEBEK A. & OZA A.
Na
Measurements Detected 2024 - KELES E.
Measurements Detected 2020 - GEBEK A. & OZA A.
Measurements Detected 2017 - WITTENMYER R.
Measurements Detected 2016 - KHALAFINEJAD S.
Measurements Detected 2015 - WYTTENBACH A.
Measurements Detected 2008 - REDFIELD S.
NH3
Measurements Detected 2024 - FINNERTY L.
O
Measurements Detected 2024 - FINNERTY L.
Measurements Detected 2023 - DOS SANTOS L.
Measurements Detected 2020 - WILSON CAULEY P.
O I
Measurements Detected 2023 - DOS SANTOS L.
Measurements Detected 2015 - BENNEKE B.
Measurements Detected 2013 - BEN-JAFFEL L. & BALLESTER G.
Sc
Measurements Detected 2022 - LIRA-BARRIA A.
Ti+
Measurements Detected 2022 - LIRA-BARRIA A.

(Brogi et al. 2015): A rotational period of 1.7+2.9-0.4 consistent with the planet orbital period of 2.2 days and therefore with tidal locking.
(Evans et al. 2013): The given geometric albedo is measured at 290-450 nm. The albedo at 450-570 nm is 0.00+0.12-0.10.
(Gibson et al. 2010): No conclusive evidence for molecular features in NICMOS data.
(Hébrard et al 2005): A posteriori detection of transits in the Hipparcos photometry.
(Deming et al 2006): Thermal emission detected by Spitzer from secondary transit.
29 Jul. 2024: See also Planets in Binaries webpage.

Star

01 Dec 2006: A M3.5 to M5 companion (0.175 to 0.2 MSun) is detected at ~216 AU from HD 189733 (Bakos et al. 2006).

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