02257+6133 STF 257 (V559 Cas)
02h 25m 40.12s +61° 32' 58.8" P.A. 82.00 sep 0.4 mag 7.51,8.16 Sp B8IV dist. 213.22 pc (695.52 l.y.)
Coord 2000 |
02257+6133 |
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Discov num |
STF 257 |
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Comp |
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Coord arcsec 2000 |
02 25 40.12 +61 32 58.8 |
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Date first |
1830 |
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Date last |
2019 |
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Obs |
103 |
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Pa first |
165 |
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Pa last |
81.8 |
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P.A. Now (θ) |
82.6° |
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Sep first |
0.6 |
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Sep last |
0.36 |
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Sep. Now (ρ) |
0.484" |
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Mag pri |
7.51 |
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Mag sec |
8.16 |
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delta mag (ΔM) |
0.65 |
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Spectral class |
B8IV (blue-white) |
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Pri motion ra |
+017 |
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Sec motion ra |
+017 |
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Pri motion dec |
-013 |
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Sec motion dec |
-013 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
V559 Cas |
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Constellation |
Cassiopeia |
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SAO |
12277 |
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HIP |
11318 |
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Tycho2 |
4046-00698-1 |
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Gaia DR2 |
513573914171764352 |
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HD |
14817 |
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GC |
2895 |
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ADS |
1833 |
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BD |
BD+60 472 |
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Distance |
213.22 |
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Distance ly |
695.52 |
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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° | |
Notes | n | |
Reference | Doc2016b | |
Equinox | 2000 | |
Last observation | 2007 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
64.6 |
0.385 |
2001 |
65.6 |
0.389 |
2002 |
66.5 |
0.393 |
2003 |
67.5 |
0.398 |
2004 |
68.4 |
0.402 |
2005 |
69.3 |
0.406 |
2006 |
70.1 |
0.410 |
2007 |
71.0 |
0.414 |
2008 |
71.8 |
0.419 |
2009 |
72.6 |
0.423 |
2010 |
73.4 |
0.427 |
2011 |
74.2 |
0.432 |
2012 |
75.0 |
0.436 |
2013 |
75.8 |
0.440 |
2014 |
76.5 |
0.445 |
2015 |
77.2 |
0.449 |
2016 |
78.0 |
0.453 |
2017 |
78.7 |
0.458 |
2018 |
79.3 |
0.462 |
2019 |
80.0 |
0.467 |
2020 |
80.7 |
0.471 |
2021 |
81.3 |
0.475 |
2022 |
82.0 |
0.480 |
2023 |
82.6 |
0.484 |
2024 |
83.2 |
0.488 |
2025 |
83.8 |
0.493 |
2026 |
84.4 |
0.497 |
2027 |
85.0 |
0.502 |
2028 |
85.6 |
0.506 |
2029 |
86.1 |
0.510 |
2030 |
86.7 |
0.515 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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