13341+6746 STF1767

 
 
13H 34M 06.04S +67 46' 07.9" P.A. 344.1 SEP 4.15 MAG 9.26,9.56 SP G1V DIST. 69.4 PC (226.38 L.Y.)
 
 
Coord 2000
13341+6746
Discov num
STF1767
Comp
Coord arcsec 2000
13 34 06.04 +67 46 07.9
Date first
1832
Date last
2014
Obs
63
Pa first
354
Pa last
344
P.A. Now (θ)
344.1°
Sep first
4.7
Sep last
4.2
Sep. Now (ρ)
4.15"
Mag pri
9.26
Mag sec
9.56
delta mag (ΔM)
0.3
Spectral class
G1V (yellow)
Pri motion ra
-180
Sec motion ra
-175
Pri motion dec
+023
Sec motion dec
+007
Notes
N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
SAO
16111
HIP
66195
Tycho2
4402-01970-1
HD
118328
ADS
8959
BD
BD+68 730
Distance
69.4
Distance ly
226.38
last precise pa
344.1
last precise sep
4.155
 
 
ORBITAL ELEMENTS
 
 
Period (P)3236.6y± 625.6 Periastron (T)2833.8y± 589.9 Semi-major axis (a)4.04a± 0.52
Eccentricity (e)0.67± 0.07 Inclination (i)136.5°± 8.9 Longitude of periastron (ω)226°± 9.7
Node (Ω)51.5°± 11.9 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 4.204 345.2
2001 4.200 345.1
2002 4.197 345.0
2003 4.194 345.0
2004 4.191 344.9
2005 4.188 344.9
2006 4.185 344.8
2007 4.182 344.8
2008 4.178 344.7
2009 4.175 344.7
2010 4.172 344.6
2011 4.169 344.5
2012 4.166 344.5
2013 4.163 344.4
2014 4.159 344.4
2015 4.156 344.3
2016 4.153 344.3
2017 4.150 344.2
2018 4.147 344.1
2019 4.144 344.1
2020 4.140 344.0
2021 4.137 344.0
2022 4.134 343.9
2023 4.131 343.9
2024 4.128 343.8
2025 4.124 343.7
2026 4.121 343.7
2027 4.118 343.6
2028 4.115 343.6
2029 4.112 343.5
2030 4.109 343.5

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic