20329+1357 L 35 CD

 
 
20h 32m 53.06s +13 58' 09.1" P.A. 130.00 sep 0.5 mag 10.60,10.92 Sp K3.6V+G9V dist. 72.78 pc (237.41 l.y.)
 
 
Coord 2000 20329+1357 Discov num L    35 Comp CD Coord arcsec 2000 20 32 53.06 +13 58 09.1
Date first 1900 Date last 2021 Obs 65
Pa first 143 Pa last 129.9 P.A. Now (θ) 129.6°
Sep first 0.3 Sep last 0.521 Sep. Now (ρ) 0.501"
Mag pri 10.60 Mag sec 10.92 delta mag (ΔM) 0.32 Spectral class K3.6V+G9V (yellow-orange/yellow)
Pri motion ra -077 Sec motion ra
Pri motion dec +141 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
20329+1357 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 32 55 +13 56 40 BU 670 AB 2016 92 5 0.8 9.44 9.87 0.43
Show 20 32 55 +13 56 40 A 3108 AB,CD 2016 20 340 98.4 9.12 10.02 0.90
Show 20 32 53 +13 58 09 L 35 CD 2021 65 130 0.5 10.60 10.92 0.32 Y <===
Quadruple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus HIP 101390 Tycho2 1099-01004-1 Gaia DR2 1804320884949038976
ADS 13987 BD BD+13 4434 Distance 72.78 Distance ly 237.41
 
 
ORBITAL ELEMENTS
 
 
Period (P)117.92y Periastron (T)1974.32y Semi-major axis (a)0.426a
Eccentricity (e)0.198 Inclination (i)166° Longitude of periastron (ω)6.6°
Node (Ω)294.9° Notesn ReferenceHrt2014b
Equinox2000 Last observation2009 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 186.6 0.414
2001 183.6 0.419
2002 180.6 0.424
2003 177.7 0.428
2004 174.9 0.433
2005 172.1 0.438
2006 169.4 0.442
2007 166.7 0.447
2008 164.1 0.451
2009 161.5 0.456
2010 159.0 0.460
2011 156.6 0.464
2012 154.1 0.468
2013 151.7 0.472
2014 149.4 0.475
2015 147.1 0.479
2016 144.8 0.482
2017 142.5 0.485
2018 140.3 0.488
2019 138.1 0.491
2020 135.9 0.494
2021 133.8 0.496
2022 131.7 0.499
2023 129.6 0.501
2024 127.5 0.502
2025 125.4 0.504
2026 123.3 0.506
2027 121.3 0.507
2028 119.2 0.508
2029 117.2 0.509
2030 115.1 0.509


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



 
 


wds20329%2B1357b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic