11017+3641 COU 1422 Ba,Bb

 
 
11h 01m 48.52s +36° 41' 14.6" P.A. 47.00 sep 0.7 mag 11.20,11.50
 
 
Coord 2000 11017+3641 Discov num COU1422 Comp Ba,Bb Coord arcsec 2000 11 01 48.52 +36 41 14.6
Date first 1976 Date last 2016 Obs 7
Pa first 329 Pa last 47 P.A. Now (θ) 47°
Sep first 0.4 Sep last 0.664 Sep. Now (ρ) 0.664"
Mag pri 11.20 Mag sec 11.50 delta mag (ΔM) 0.3 Spectral class
Pri motion ra -009 Sec motion ra
Pri motion dec +055 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
11017+3641 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 62360 11 01 46 +36 40 42 HDS 1574 Aa,Ab 2019 13 99 0.3 7.58 11.06 3.48 Y
Show HD 95485 62360 11 01 46 +36 40 42 UC 2059 AB 2015 11 46 46.6 7.49 10.70 3.21
Show 11 01 49 +36 41 15 COU 1422 Ba,Bb 2016 7 47 0.7 11.20 11.50 0.30 Y <===
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ursa Major Gaia DR2 763088115086038400
 
 
ORBITAL ELEMENTS
 
 
Period (P)173y Periastron (T)1958y Semi-major axis (a)0.56a
Eccentricity (e)0.35 Inclination (i)39.5° Longitude of periastron (ω)180°
Node (Ω)74° Notes ReferenceTok2019e
Equinox2000 Last observation2018 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 26.6 0.527
2001 28.2 0.536
2002 29.8 0.545
2003 31.4 0.554
2004 32.9 0.563
2005 34.4 0.571
2006 35.8 0.580
2007 37.2 0.588
2008 38.5 0.597
2009 39.8 0.605
2010 41.1 0.613
2011 42.4 0.621
2012 43.6 0.628
2013 44.7 0.636
2014 45.9 0.643
2015 47.0 0.650
2016 48.1 0.657
2017 49.2 0.664
2018 50.3 0.670
2019 51.3 0.676
2020 52.3 0.682
2021 53.3 0.688
2022 54.3 0.694
2023 55.3 0.699
2024 56.3 0.704
2025 57.2 0.709
2026 58.1 0.714
2027 59.1 0.718
2028 60.0 0.722
2029 60.9 0.726
2030 61.7 0.730


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



 
 


wds11017%2B3641b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic