01108+6747 HDS 155 (HD 6840)

 
 
01h 10m 50.74s +67 46' 48.2" P.A. 174.00 sep 0.1 mag 7.22,7.68 Sp G0IV+G0IV dist. 54.64 pc (178.24 l.y.)
 
 
Coord 2000 01108+6747 Discov num HDS 155 Comp Coord arcsec 2000 01 10 50.74 +67 46 48.2
Date first 1991 Date last 2013 Obs 27
Pa first 165 Pa last 174 P.A. Now (θ) 189.2°
Sep first 0.1 Sep last 0.133 Sep. Now (ρ) 0.103"
Mag pri 7.22 Mag sec 7.68 delta mag (ΔM) 0.46 Spectral class G0IV+G0IV (yellow/yellow)
Pri motion ra +250 Sec motion ra
Pri motion dec +024 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 6840 Constellation Cassiopeia SAO 11614 HIP 5531
Tycho2 4296-01443-1 Gaia DR2 526537396786294784 HD 6840 GC 1409
BD BD+67 98 Distance 54.64 Distance ly 178.24
 
 
ORBITAL ELEMENTS
 
 
Period (P)7.453y Periastron (T)1995.5y Semi-major axis (a)0.083a
Eccentricity (e)0.744 Inclination (i)52° Longitude of periastron (ω)215°
Node (Ω)151.8° Notes ReferenceDoc2018i
Equinox2000 Last observation2013 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 182.0 0.118
2001 194.4 0.091
2002 222.5 0.052
2003 16.0 0.016
2004 148.8 0.086
2005 161.3 0.121
2006 169.7 0.132
2007 177.8 0.126
2008 188.0 0.105
2009 205.8 0.071
2010 270.6 0.031
2011 136.5 0.057
2012 156.6 0.109
2013 166.1 0.129
2014 174.0 0.130
2015 182.9 0.116
2016 196.0 0.088
2017 227.7 0.048
2018 68.3 0.017
2019 150.4 0.091
2020 162.2 0.123
2021 170.4 0.132
2022 178.6 0.124
2023 189.2 0.103
2024 208.5 0.067
2025 284.9 0.029
2026 140.0 0.064
2027 157.7 0.112
2028 166.8 0.130
2029 174.8 0.129
2030 183.9 0.114


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



 
 


wds01108%2B6747b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic