02174+6121 STF 234AB

 
 
02H 17M 23.00S +61 21' 06.5" P.A. 222.9 SEP 0.66 MAG 8.74,9.40 SP G2V DIST. 59.14 PC (192.91 L.Y.)
 
 
Coord 2000
02174+6121
Discov num
STF 234
Comp
AB
Coord arcsec 2000
02 17 23.00 +61 21 06.5
Date first
1831
Date last
2012
Obs
73
Pa first
239
Pa last
222
P.A. Now (θ)
222.9°
Sep first
0.8
Sep last
0.6
Sep. Now (ρ)
0.66"
Mag pri
8.74
Mag sec
9.40
delta mag (ΔM)
0.66
Spectral class
G2V (yellow)
Pri motion ra
+051
Sec motion ra
+051
Pri motion dec
-087
Sec motion dec
-087
Notes
O (Orbital solution)
This double is physical.
 
 
02174+6121 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12207 02174+6121 STF 234 AB 1831 2012 73 223 0.7 8.74 9.40 0.66 Y <===
Show 12207 02174+6121 STF 234 AB,C 1904 2003 4 247 83.3 8.26 12.38 4.12
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cassiopeia
SAO
12207
HIP
10677
Tycho2
4046-00286-1
HD
13864
ADS
1737
BD
BD+60 457
Distance
59.14
Distance ly
192.91
last precise pa
222.4
last precise sep
0.641
 
 
ORBITAL ELEMENTS
 
 
Period (P)139.868y Periastron (T)1909.214y Semi-major axis (a)0.51a
Eccentricity (e)0.718 Inclination (i)123.5° Longitude of periastron (ω)353.9°
Node (Ω)54.8° Note Grade4(1=Definitive, 9=Indet.)
Equinox1900 Last observation1978
label rho theta
2000 0.816 230.9
2001 0.810 230.5
2002 0.803 230.1
2003 0.796 229.7
2004 0.789 229.3
2005 0.781 228.8
2006 0.772 228.4
2007 0.764 228.0
2008 0.755 227.5
2009 0.745 227.1
2010 0.735 226.6
2011 0.725 226.1
2012 0.715 225.6
2013 0.703 225.1
2014 0.692 224.6
2015 0.680 224.0
2016 0.667 223.5
2017 0.655 222.9
2018 0.641 222.3
2019 0.627 221.6
2020 0.613 221.0
2021 0.598 220.3
2022 0.583 219.5
2023 0.567 218.8
2024 0.550 217.9
2025 0.533 217.1
2026 0.516 216.1
2027 0.498 215.1
2028 0.479 214.0
2029 0.460 212.9
2030 0.440 211.6

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