01345+7804 HDS 211 Aa,Ab

 
 
01h 34m 30.53s +78° 03' 46.6" P.A. 211.00 sep 0.2 mag 11.02,12.76 Sp M0 dist. 37.71 pc (123.01 l.y.)
 
 
Coord 2000 01345+7804 Discov num HDS 211 Comp Aa,Ab Coord arcsec 2000 01 34 30.53 +78 03 46.6
Date first 1991 Date last 2011 Obs 13
Pa first 188 Pa last 211 P.A. Now (θ) 211°
Sep first 0.2 Sep last 0.223 Sep. Now (ρ) 0.223"
Mag pri 11.02 Mag sec 12.76 delta mag (ΔM) 1.74 Spectral class M0 (red)
Pri motion ra -066 Sec motion ra
Pri motion dec +104 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
01345+7804 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 01 34 31 +78 03 47 HDS 211 Aa,Ab 2011 13 211 0.2 11.02 12.76 1.74 Y <===
Show 01 34 31 +78 03 47 TOK 227 AB 2015 7 350 61.9 10.64 13.28 2.64
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus HIP 7338 Tycho2 4498-01104-3 Gaia DR2 560680428277635456
Distance 37.71 Distance ly 123.01
 
 
ORBITAL ELEMENTS
 
 
Period (P)22.74y Periastron (T)1996.99y Semi-major axis (a)0.207a
Eccentricity (e)0.462 Inclination (i)127.7° Longitude of periastron (ω)28.5°
Node (Ω)68.8° Notes ReferenceDoc2007g
Equinox2000 Last observation2006 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 285.1 0.142
2001 271.2 0.186
2002 262.3 0.222
2003 255.7 0.249
2004 250.3 0.270
2005 245.5 0.282
2006 241.0 0.289
2007 236.6 0.289
2008 232.1 0.283
2009 227.4 0.273
2010 222.1 0.258
2011 216.2 0.238
2012 209.0 0.216
2013 200.1 0.190
2014 188.3 0.164
2015 172.2 0.140
2016 150.5 0.123
2017 124.4 0.117
2018 97.9 0.120
2019 72.2 0.117
2020 40.4 0.096
2021 348.4 0.080
2022 302.8 0.108
2023 280.7 0.154
2024 268.6 0.196
2025 260.5 0.230
2026 254.2 0.255
2027 249.0 0.274
2028 244.3 0.285
2029 239.8 0.289
2030 235.4 0.288


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


 
  


wds01345%2B7804a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic