20330+4950 MCA 61 AB (HD 196088)

 
 
20h 32m 59.04s +49 50' 28.3" P.A. 233.00 sep 0.1 mag 6.70, Sp A0+G dist. 458.72 pc (1496.34 l.y.)
 
 
Coord 2000 20330+4950 Discov num MCA  61 Comp AB Coord arcsec 2000 20 32 59.04 +49 50 28.3
Date first 1980 Date last 2006 Obs 13
Pa first 68 Pa last 232.8 P.A. Now (θ) 232.8°
Sep first 0.1 Sep last 0.108 Sep. Now (ρ) 0.108"
Mag pri 6.70 Mag sec delta mag (ΔM) Spectral class A0+G (white/yellow)
Pri motion ra -002 Sec motion ra
Pri motion dec +005 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
20330+4950 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 196088 49782 20 32 59 +49 50 28 MCA 61 AB 2006 13 233 0.1 6.70 Y <===
Show 49782 20 32 59 +49 50 28 RBR 49 AC 2004 2 136 4.3 6.70 15.00 8.30
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 196088 Constellation Cygnus SAO 49782 HIP 101398
Tycho2 3581-01342-1 Gaia DR2 2180169006262367104 HD 196088 GC 28610
BD BD+49 3310 Distance 458.72 Distance ly 1496.34
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier20330+4950 MCA 61
coord_arcsec_2000203259.04+495028.3
Period (P)184.75y± 33.29 Periastron (T)1986.09y± 0.66 Semi-major axis (a)0.133a± 0.016
Eccentricity (e)0.612± 0.045 Inclination (i)46°± 3.8 Longitude of periastron (ω)266.7°± 4.8
Node (Ω)219.5°± 4.5 Notes ReferenceHrt2009
Equinox Last observation2006 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 220.6 0.088
2001 223.0 0.091
2002 225.2 0.094
2003 227.3 0.097
2004 229.2 0.100
2005 231.1 0.103
2006 232.8 0.105
2007 234.5 0.108
2008 236.1 0.110
2009 237.6 0.112
2010 239.1 0.114
2011 240.6 0.116
2012 241.9 0.118
2013 243.3 0.119
2014 244.6 0.121
2015 245.9 0.123
2016 247.1 0.124
2017 248.3 0.126
2018 249.5 0.127
2019 250.7 0.128
2020 251.8 0.129
2021 253.0 0.131
2022 254.1 0.132
2023 255.1 0.133
2024 256.2 0.134
2025 257.3 0.135
2026 258.3 0.136
2027 259.3 0.136
2028 260.3 0.137
2029 261.3 0.138
2030 262.3 0.139


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds20330%2B4950a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic