02257+6133 STF 257 (V559 Cas)

 
 
02H 25M 40.12S +61 32' 58.8" P.A. 78.7 SEP 0.46 MAG 7.51,8.16 SP B8IV DIST. 213.22 PC (695.52 L.Y.)
 
 
Coord 2000
02257+6133
Discov num
STF 257
Comp
Coord arcsec 2000
02 25 40.12 +61 32 58.8
Date first
1830
Date last
2007
Obs
100
Pa first
165
Pa last
71
P.A. Now (θ)
78.7°
Sep first
0.6
Sep last
0.4
Sep. Now (ρ)
0.46"
Mag pri
7.51
Mag sec
8.16
delta mag (ΔM)
0.65
Spectral class
B8IV (blue-white)
Pri motion ra
+017
Sec motion ra
+017
Pri motion dec
-013
Sec motion dec
-013
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V559 Cas
Constellation
Cassiopeia
SAO
12277
HIP
11318
Tycho2
4046-00698-1
HD
14817
ADS
1833
BD
BD+60 472
Distance
213.22
Distance ly
695.52
last precise pa
71
last precise sep
0.416
 
 
ORBITAL ELEMENTS
 
 
Period (P)557y Periastron (T)1934y Semi-major axis (a)0.621a
Eccentricity (e)0.588 Inclination (i)43.8° Longitude of periastron (ω)165.8°
Node (Ω)142.4° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2007
label rho theta
2000 0.385 64.6
2001 0.389 65.6
2002 0.393 66.5
2003 0.398 67.5
2004 0.402 68.4
2005 0.406 69.3
2006 0.410 70.1
2007 0.414 71.0
2008 0.419 71.8
2009 0.423 72.6
2010 0.427 73.4
2011 0.432 74.2
2012 0.436 75.0
2013 0.440 75.8
2014 0.445 76.5
2015 0.449 77.2
2016 0.453 78.0
2017 0.458 78.7
2018 0.462 79.3
2019 0.467 80.0
2020 0.471 80.7
2021 0.475 81.3
2022 0.480 82.0
2023 0.484 82.6
2024 0.488 83.2
2025 0.493 83.8
2026 0.497 84.4
2027 0.502 85.0
2028 0.506 85.6
2029 0.510 86.1
2030 0.515 86.7

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