03321+4340 COU1688AB

 
 
03H 32M 05.10S +43 40' 11.5" P.A. 69.6 SEP 0.12 MAG 8.56,8.90 SP G5 DIST. 60.79 PC (198.3 L.Y.)
 
 
Coord 2000
03321+4340
Discov num
COU1688
Comp
AB
Coord arcsec 2000
03 32 05.10 +43 40 11.5
Date first
1978
Date last
2008
Obs
5
Pa first
29
Pa last
135
P.A. Now (θ)
69.6°
Sep first
0.1
Sep last
0.2
Sep. Now (ρ)
0.12"
Mag pri
8.56
Mag sec
8.90
delta mag (ΔM)
0.34
Spectral class
G5 (yellow)
Pri motion ra
+299
Sec motion ra
Pri motion dec
-119
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
03321+4340 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 38921 03321+4340 COU1688 AB 1978 2008 5 70 0.1 8.56 8.90 0.34 Y <===
Show 38921 03321+4340 LDS9155 AC 1960 2015 8 138 14.8 8.56 13.09 4.53
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
135.2
Precise sep
0.159
Constellation
Perseus
SAO
38921
HIP
16467
Tycho2
2874-00788-1
HD
21727
BD
BD+43 744
Distance
60.79
Distance ly
198.3
last precise pa
135.2
last precise sep
0.159
 
 
ORBITAL ELEMENTS
 
 
Period (P)9.15y Periastron (T)1987.02y Semi-major axis (a)0.144a
Eccentricity (e)0.08 Inclination (i)43.7° Longitude of periastron (ω)303.9°
Node (Ω)26.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1986
label rho theta
2000 0.113 128.5
2001 0.134 168.2
2002 0.150 196.8
2003 0.140 224.0
2004 0.108 262.8
2005 0.101 322.1
2006 0.128 8.0
2007 0.137 40.2
2008 0.120 75.6
2009 0.111 121.4
2010 0.130 163.1
2011 0.149 192.9
2012 0.143 219.5
2013 0.112 255.5
2014 0.098 313.1
2015 0.124 2.5
2016 0.137 35.6
2017 0.123 69.6
2018 0.111 114.3
2019 0.126 157.8
2020 0.147 188.9
2021 0.146 215.3
2022 0.117 248.9
2023 0.097 303.9
2024 0.120 356.6
2025 0.138 30.9
2026 0.126 63.9
2027 0.111 107.1
2028 0.123 152.1
2029 0.145 184.8
2030 0.148 211.2

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