22070+3605 STT 462 AB (HD 210087)

 
 
22h 07m 02.19s +36° 05' 37.4" P.A. 315.00 sep 1.1 mag 8.05,9.53 Sp A5III dist. 183.15 pc (597.44 l.y.)
 
 
Coord 2000 22070+3605 Discov num STT 462 Comp AB Coord arcsec 2000 22 07 02.19 +36 05 37.4
Date first 1843 Date last 2016 Obs 52
Pa first 336 Pa last 315.2 P.A. Now (θ) 315.2°
Sep first 1.4 Sep last 1.127 Sep. Now (ρ) 1.127"
Mag pri 8.05 Mag sec 9.53 delta mag (ΔM) 1.48 Spectral class A5III (white)
Pri motion ra +006 Sec motion ra +006
Pri motion dec -014 Sec motion dec -014
Notes O (Orbital solution)
This double is physical.
 
 
22070+3605 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 210087 72040 22 07 02 +36 05 37 STT 462 AB 2016 52 315 1.1 8.05 9.53 1.48 Y <===
Show 72040 22 07 02 +36 05 37 STT 462 AC 2015 21 31 7.6 8.06 11.71 3.65
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 210087 Constellation Lacerta SAO 72040 HIP 109180
Tycho2 2732-02102-1 Gaia DR2 1954584026652159360 HD 210087 GC 30937
ADS 15645 BD BD+35 4712 Distance 183.15 Distance ly 597.44
 
 
ORBITAL ELEMENTS
 
 
Period (P)3710y± 449 Periastron (T)2262.4y± 53.1 Semi-major axis (a)1.968a± 0.157
Eccentricity (e)0.347± 0.021 Inclination (i)117.1°± 0.9 Longitude of periastron (ω)278.1°± 12.8
Node (Ω)163.6°± 1 Notes ReferencePkO2018b
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 318.3 1.096
2001 318.2 1.093
2002 318.1 1.090
2003 317.9 1.087
2004 317.8 1.084
2005 317.7 1.081
2006 317.5 1.078
2007 317.4 1.075
2008 317.3 1.072
2009 317.1 1.069
2010 317.0 1.066
2011 316.8 1.063
2012 316.7 1.060
2013 316.5 1.057
2014 316.4 1.054
2015 316.3 1.051
2016 316.1 1.048
2017 316.0 1.045
2018 315.8 1.042
2019 315.7 1.039
2020 315.5 1.036
2021 315.4 1.033
2022 315.2 1.030
2023 315.1 1.027
2024 314.9 1.024
2025 314.8 1.021
2026 314.6 1.018
2027 314.4 1.015
2028 314.3 1.012
2029 314.1 1.009
2030 314.0 1.006


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



 
 


wds22070%2B3605a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic