02471+3533 BU    9AB

 
 
02H 47M 03.60S +35 33' 17.3" P.A. 216.7 SEP 0.92 MAG 6.42,8.64 SP F0IV DIST. 50.61 PC (165.09 L.Y.)
 
 
Coord 2000
02471+3533
Discov num
BU    9
Comp
AB
Coord arcsec 2000
02 47 03.60 +35 33 17.3
Date first
1872
Date last
2015
Obs
61
Pa first
165
Pa last
218
P.A. Now (θ)
216.7°
Sep first
1.5
Sep last
0.9
Sep. Now (ρ)
0.92"
Mag pri
6.42
Mag sec
8.64
delta mag (ΔM)
2.22
Spectral class
F0IV (yellow-white)
Pri motion ra
-040
Sec motion ra
-040
Pri motion dec
-054
Sec motion dec
-054
Notes
O (Orbital solution)
This double is physical.
 
 
02471+3533 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 55872 02471+3533 BU 9 AB 1872 2015 61 217 0.9 6.42 8.64 2.22 Y <===
Show 55872 02471+3533 BU 9 AC 1913 2013 5 127 30.2 6.42 13.30 6.88
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
55872
HIP
12990
Tycho2
2333-00738-1
HD
17240
HR
820
ADS
2117
BD
BD+34 513
Distance
50.61
Distance ly
165.09
last precise pa
217.7
last precise sep
0.87
 
 
ORBITAL ELEMENTS
 
 
Period (P)616y Periastron (T)1952y Semi-major axis (a)1.882a
Eccentricity (e)0.1 Inclination (i)67.3° Longitude of periastron (ω)21.5°
Node (Ω)174° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 1.116 203.4
2001 1.104 204.0
2002 1.092 204.7
2003 1.080 205.4
2004 1.068 206.1
2005 1.056 206.8
2006 1.044 207.5
2007 1.032 208.2
2008 1.020 209.0
2009 1.008 209.8
2010 0.996 210.6
2011 0.984 211.4
2012 0.972 212.2
2013 0.960 213.0
2014 0.949 213.9
2015 0.937 214.8
2016 0.926 215.7
2017 0.915 216.7
2018 0.904 217.6
2019 0.893 218.6
2020 0.882 219.6
2021 0.871 220.7
2022 0.861 221.7
2023 0.850 222.8
2024 0.840 223.9
2025 0.830 225.1
2026 0.821 226.2
2027 0.811 227.4
2028 0.802 228.6
2029 0.793 229.9
2030 0.785 231.2

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