00320+2740 COU 547

 
 
00H 32M 00.65S +27 39' 44.1" P.A. 57.9 SEP 0.11 MAG 8.90,9.10 SP G0V
 
 
Coord 2000
00320+2740
Discov num
COU 547
Comp
Coord arcsec 2000
00 32 00.65 +27 39 44.1
Date first
1970
Date last
2007
Obs
36
Pa first
222
Pa last
247
P.A. Now (θ)
57.9°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.11"
Mag pri
8.90
Mag sec
9.10
delta mag (ΔM)
0.2
Spectral class
G0V (yellow)
Pri motion ra
+079
Sec motion ra
Pri motion dec
+012
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
74069
Tycho2
1737-02134-1
HD
2854
last precise pa
247.2
last precise sep
0.15
 
 
ORBITAL ELEMENTS
 
 
Period (P)265y Periastron (T)1984.9y Semi-major axis (a)0.322a
Eccentricity (e)0.737 Inclination (i)79.9° Longitude of periastron (ω)295.9°
Node (Ω)31.7° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2007
label rho theta
2000 0.139 40.8
2001 0.139 41.7
2002 0.139 42.6
2003 0.138 43.4
2004 0.137 44.3
2005 0.136 45.2
2006 0.135 46.1
2007 0.134 47.0
2008 0.132 48.0
2009 0.130 49.0
2010 0.129 50.0
2011 0.127 51.0
2012 0.125 52.0
2013 0.123 53.1
2014 0.120 54.3
2015 0.118 55.4
2016 0.116 56.7
2017 0.114 57.9
2018 0.112 59.2
2019 0.109 60.6
2020 0.107 62.0
2021 0.105 63.5
2022 0.102 65.1
2023 0.100 66.7
2024 0.098 68.4
2025 0.096 70.2
2026 0.094 72.0
2027 0.092 74.0
2028 0.090 76.0
2029 0.088 78.1
2030 0.086 80.3

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