01112+4113 A 655 (HD 7018)

 
 
01h 11m 14.56s +41 13' 17.3" P.A. 5.00 sep 0.2 mag 8.35,9.36 Sp G5 dist. 116.28 pc (379.31 l.y.)
 
 
Coord 2000 01112+4113 Discov num A   655 Comp Coord arcsec 2000 01 11 14.56 +41 13 17.3
Date first 1904 Date last 2014 Obs 64
Pa first 145 Pa last 5.1 P.A. Now (θ) 15°
Sep first 0.3 Sep last 0.223 Sep. Now (ρ) 0.231"
Mag pri 8.35 Mag sec 9.36 delta mag (ΔM) 1.01 Spectral class G5 (yellow)
Pri motion ra +054 Sec motion ra
Pri motion dec -028 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 7018 Constellation Andromeda SAO 37001 HIP 5553
Tycho2 2804-00925-1 Gaia DR2 372775334201165824 HD 7018 GC 1433
ADS 974 BD BD+40 235 Distance 116.28 Distance ly 379.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)153.09y± 4.78 Periastron (T)2040.77y± 2.97 Semi-major axis (a)0.338a± 0.007
Eccentricity (e)0.185± 0.012 Inclination (i)53.1°± 0.8 Longitude of periastron (ω)290.5°± 5.3
Node (Ω)157.5°± 1.1 Notesn ReferenceCve2006e
Equinox2000 Last observation1995 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 334.2 0.354
2001 335.4 0.353
2002 336.7 0.350
2003 338.0 0.348
2004 339.3 0.345
2005 340.7 0.342
2006 342.0 0.339
2007 343.4 0.335
2008 344.9 0.331
2009 346.3 0.326
2010 347.9 0.321
2011 349.4 0.316
2012 351.0 0.310
2013 352.7 0.304
2014 354.5 0.298
2015 356.3 0.292
2016 358.2 0.285
2017 0.2 0.278
2018 2.3 0.270
2019 4.5 0.263
2020 6.9 0.255
2021 9.4 0.247
2022 12.1 0.239
2023 15.0 0.231
2024 18.0 0.223
2025 21.3 0.216
2026 24.9 0.208
2027 28.6 0.201
2028 32.7 0.194
2029 37.1 0.188
2030 41.7 0.182


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



 
 


wds01112%2B4113b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic