00542+4318 COU1654

 
 
00H 54M 11.08S +43 17' 54.1" P.A. 268.6 SEP 0.09 MAG 8.40,8.40 SP F0
 
 
Coord 2000
00542+4318
Discov num
COU1654
Comp
Coord arcsec 2000
00 54 11.08 +43 17 54.1
Date first
1978
Date last
2008
Obs
21
Pa first
107
Pa last
90
P.A. Now (θ)
268.6°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.09"
Mag pri
8.40
Mag sec
8.40
delta mag (ΔM)
0
Spectral class
F0 (yellow-white)
Pri motion ra
+012
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
36758
Tycho2
2810-00453-1
HD
5178
last precise pa
90.3
last precise sep
0.413
 
 
ORBITAL ELEMENTS
 
 
Period (P)93y Periastron (T)1918y Semi-major axis (a)0.15a
Eccentricity (e)0.564 Inclination (i)109.7° Longitude of periastron (ω)110°
Node (Ω)91.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.126 91.3
2001 0.119 89.7
2002 0.111 87.9
2003 0.102 85.8
2004 0.092 83.2
2005 0.080 79.9
2006 0.068 75.4
2007 0.054 68.8
2008 0.040 57.4
2009 0.027 34.5
2010 0.023 351.6
2011 0.030 314.3
2012 0.044 295.9
2013 0.057 286.1
2014 0.068 279.8
2015 0.078 275.3
2016 0.085 271.7
2017 0.091 268.6
2018 0.095 265.8
2019 0.098 263.2
2020 0.100 260.7
2021 0.101 258.3
2022 0.101 255.9
2023 0.100 253.6
2024 0.099 251.1
2025 0.098 248.6
2026 0.096 246.1
2027 0.095 243.4
2028 0.092 240.7
2029 0.090 237.8
2030 0.088 234.7

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