00243+5201 HU 506 (NSV155)

 
 
00h 24m 15.64s +52 01' 11.7" P.A. 105.00 sep 0.1 mag 5.95,6.84 Sp B5IV dist. 306.75 pc (1000.62 l.y.)
 
 
Coord 2000 00243+5201 Discov num HU  506 Comp Coord arcsec 2000 00 24 15.64 +52 01 11.7
Date first 1902 Date last 2010 Obs 41
Pa first 217 Pa last 104.9 P.A. Now (θ) 149.5°
Sep first 0.2 Sep last 0.112 Sep. Now (ρ) 0.12"
Mag pri 5.95 Mag sec 6.84 delta mag (ΔM) 0.89 Spectral class B5IV (blue-white)
Pri motion ra +017 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV155 Constellation Cassiopeia SAO 21366 HIP 1921
Tycho2 3260-02342-1 Gaia DR2 418916648901801728 HD 1976 HR 91
GC 476 ADS 328 BD BD+51 62 Distance 306.75
Distance ly 1000.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)169.76y± 3.29 Periastron (T)1953.643y± 2.245 Semi-major axis (a)0.211a± 0.097
Eccentricity (e)0.176± 0.023 Inclination (i)64°± 16 Longitude of periastron (ω)308.2°± 9.4
Node (Ω)29°± 12 Notesn ReferenceHmn2018
Equinox2000 Last observation2004 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 72.9 0.128
2001 75.4 0.125
2002 78.1 0.122
2003 80.9 0.119
2004 83.9 0.116
2005 86.9 0.114
2006 90.1 0.112
2007 93.5 0.110
2008 96.9 0.108
2009 100.5 0.106
2010 104.1 0.105
2011 107.8 0.104
2012 111.6 0.104
2013 115.3 0.104
2014 119.1 0.104
2015 122.9 0.105
2016 126.6 0.105
2017 130.2 0.107
2018 133.7 0.108
2019 137.1 0.110
2020 140.4 0.112
2021 143.6 0.115
2022 146.6 0.117
2023 149.5 0.120
2024 152.3 0.123
2025 154.9 0.126
2026 157.4 0.130
2027 159.7 0.133
2028 162.0 0.137
2029 164.1 0.140
2030 166.1 0.144


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds00243%2B5201d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic