01077-1557 HDS 148 (HD 6708)

 
 
01h 07m 44.93s -15 56' 58.5" P.A. 23.00 sep 0.1 mag 9.88,10.51 Sp G1V dist. 73.37 pc (239.33 l.y.)
 
 
Coord 2000 01077-1557 Discov num HDS 148 Comp Coord arcsec 2000 01 07 44.93 -15 56 58.5
Date first 1991 Date last 2021 Obs 11
Pa first 0 Pa last 22.6 P.A. Now (θ) 22.6°
Sep first 0.1 Sep last 0.09 Sep. Now (ρ) 0.11"
Mag pri 9.88 Mag sec 10.51 delta mag (ΔM) 0.63 Spectral class G1V (yellow)
Pri motion ra +268 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 6708 Constellation Cetus SAO 147624 HIP 5295
Tycho2 5851-02163-1 Gaia DR2 2359455887674721920 HD 6708 BD BD-16 183
Distance 73.37 Distance ly 239.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.51y± 1 Periastron (T)2019.12y± 0.25 Semi-major axis (a)0.074a± 0.02
Eccentricity (e)0.98 Inclination (i)65.9°± 14.8 Longitude of periastron (ω)213.4°± 26.4
Node (Ω)10.2°± 8.6 Notes ReferenceTok2021c
Equinox2000 Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 28.5 0.097
2001 29.8 0.081
2002 31.9 0.060
2003 36.5 0.033
2004 21.3 0.093
2005 19.4 0.068
2006 21.1 0.090
2007 22.1 0.105
2008 23.0 0.115
2009 23.7 0.122
2010 24.4 0.126
2011 25.0 0.127
2012 25.7 0.125
2013 26.4 0.121
2014 27.1 0.114
2015 28.0 0.104
2016 29.1 0.090
2017 30.7 0.072
2018 33.6 0.047
2019 56.7 0.008
2020 357.5 0.005
2021 20.3 0.080
2022 21.6 0.098
2023 22.6 0.110
2024 23.4 0.119
2025 24.1 0.124
2026 24.7 0.127
2027 25.3 0.126
2028 26.0 0.123
2029 26.7 0.118
2030 27.5 0.109


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



 
 


wds01077-1557a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic