02145+6631 MCA   6 (55 Cas)

 
 
02H 14M 29.10S +66 31' 28.0" P.A. 341.8 SEP 0.1 MAG 6.40,7.60 SP B9V+... DIST. 218.82 PC (713.79 L.Y.)
 
 
Coord 2000
02145+6631
Discov num
MCA   6
Comp
Coord arcsec 2000
02 14 29.10 +66 31 28.0
Date first
1980
Date last
2011
Obs
29
Pa first
10
Pa last
134
P.A. Now (θ)
341.8°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
6.40
Mag sec
7.60
delta mag (ΔM)
1.2
Spectral class
B9V+... (blue-white)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
55 Cas
Constellation
Cassiopeia
SAO
12180
HIP
10438
Tycho2
4045-00788-1
HD
13474
HR
640
GC
2661
BD
BD+65 239
Flamsteed
55 Cassiopeiae
Flamsteed name
55 Cas
Distance
218.82
Distance ly
713.79
last precise pa
133.9
last precise sep
0.106
 
 
ORBITAL ELEMENTS
 
 
Period (P)40.97y Periastron (T)1989.39y Semi-major axis (a)0.084a
Eccentricity (e)0.374 Inclination (i)20.6° Longitude of periastron (ω)84.1°
Node (Ω)43.5° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.094 257.6
2001 0.097 263.5
2002 0.100 269.1
2003 0.102 274.4
2004 0.104 279.5
2005 0.105 284.4
2006 0.106 289.2
2007 0.107 293.9
2008 0.108 298.6
2009 0.108 303.2
2010 0.108 307.8
2011 0.108 312.4
2012 0.107 317.0
2013 0.106 321.8
2014 0.105 326.6
2015 0.104 331.5
2016 0.102 336.6
2017 0.100 341.8
2018 0.098 347.3
2019 0.095 353.1
2020 0.092 359.2
2021 0.089 5.8
2022 0.085 12.9
2023 0.081 20.7
2024 0.076 29.4
2025 0.072 39.2
2026 0.066 50.6
2027 0.061 63.8
2028 0.056 79.6
2029 0.052 98.1
2030 0.050 119.2

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