12006+6911 A 1088 (OR Dra)

 
 
12h 00m 37.54s +69° 11' 07.8" P.A. 2.00 sep 0.2 mag 7.88,8.81 Sp F2V dist. 206.19 pc (672.59 l.y.)
 
 
Coord 2000 12006+6911 Discov num A  1088 Comp Coord arcsec 2000 12 00 37.54 +69 11 07.8
Date first 1905 Date last 2010 Obs 37
Pa first 223 Pa last 2.1 P.A. Now (θ) 209.1°
Sep first 0.3 Sep last 0.179 Sep. Now (ρ) 0.176"
Mag pri 7.88 Mag sec 8.81 delta mag (ΔM) 0.93 Spectral class F2V (yellow-white)
Pri motion ra -019 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name OR Dra Constellation Draco SAO 15686 HIP 58567
Tycho2 4393-00948-1 Gaia DR2 1682085256709072256 HD 104288 GC 16418
ADS 8387 BD BD+69 636 Distance 206.19 Distance ly 672.59
 
 
ORBITAL ELEMENTS
 
 
Period (P)134.9y Periastron (T)2017.3y Semi-major axis (a)0.356a
Eccentricity (e)0.805 Inclination (i)75.5° Longitude of periastron (ω)67.3°
Node (Ω)29.5° Notesn ReferenceUSN2002
Equinox2000 Last observation1993 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 340.7 0.119
2001 344.2 0.121
2002 347.6 0.123
2003 350.9 0.125
2004 354.0 0.127
2005 357.1 0.129
2006 0.1 0.131
2007 3.0 0.132
2008 5.9 0.133
2009 8.7 0.134
2010 11.5 0.134
2011 14.3 0.132
2012 17.2 0.130
2013 20.3 0.124
2014 23.8 0.115
2015 28.1 0.101
2016 34.4 0.078
2017 49.1 0.043
2018 140.2 0.020
2019 191.0 0.056
2020 200.4 0.094
2021 204.6 0.126
2022 207.2 0.153
2023 209.1 0.176
2024 210.5 0.196
2025 211.7 0.214
2026 212.7 0.230
2027 213.6 0.244
2028 214.4 0.256
2029 215.2 0.268
2030 215.8 0.278


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



 
 


wds12006%2B6911a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic