Planet ups And Ac

Detailed information about planet ups And Ac and its parameters.

Planet

Name
ups And Ac
Planet Status
Confirmed
Discovered in
1999
Update
2024-07-21
Mass
9.1 ( +5.04 -2.93 ) MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Radial Velocity, Astrometry
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
53.498 ( ± 0.55 ) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
HD 9826 c
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

υ And c Notes:
21 Aug 2012: The given mass is the minimum mass from Ligi et a; (2012). Benedict et al. (2010) give an orbital inclination of 8 deg., which would lead to a mass of 13.25 MJup.
19 Oct 2010: Simpson et al. (2010) infer the orbital inclination 58 deg. from the parent star rotation, deriving a planet mass 2.3+0.5-0.3MJ; but the coplanarity of stellar equator with planet orbits is generally not demonstrated.
08 May 10: The value of the parameters are using dynamical stability analysis of the system (Table 15, McArthur et al 2010)
08 May 10: Mutual inclination between planets c and d: 30.4 deg.
20 Apr 03: Planet in wide (a ~ 750 AU) binary system (Eggenberger et al 2003)
21 May 02:A M4.5 V stellar companion detected at ~ 750 AU (Lowrance et al. 2002)
22 Nov 00: From astrometry Han et al. (2000) claim a preliminary mass of 10 MJ and inclination of 155.5o for the planet d.
Circumstellar disk searched for at UKIRT and KECK but not found (Trilling et al.1999, 2000)

Star

Alias HD 9826.
Lowrance et al. (2002) detected an M dwarf companion star (spT M4.5V) 750 AUs away.
08 May 2010: RV measurements also reveal a long-period trend indicating a fourth planet in the system (McArthur et al. 2010).

No link