00416+2438 WRH 28 (NSV258)

 
 
00h 41m 35.98s +24 37' 44.6" P.A. 302.00 sep 0.1 mag 6.06, Sp A7m dist. 126.74 pc (413.43 l.y.)
 
 
Coord 2000 00416+2438 Discov num WRH  28 Comp Coord arcsec 2000 00 41 35.98 +24 37 44.6
Date first 1980 Date last 2005 Obs 8
Pa first 179 Pa last 302.1 P.A. Now (θ) 302.1°
Sep first 0.2 Sep last 0.066 Sep. Now (ρ) 0.066"
Mag pri 6.06 Mag sec delta mag (ΔM) Spectral class A7m (white)
Pri motion ra +107 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV258 Constellation Andromeda SAO 74200 HIP 3269
Tycho2 1738-01977-1 Gaia DR2 2806529032199025536 HD 3883 HR 178
GC 822 BD BD+23 94 FK5 2044 Distance 126.74
Distance ly 413.43
 
 
ORBITAL ELEMENTS
 
 
Period (P)21.26y± 0.94 Periastron (T)1993.02y± 0.56 Semi-major axis (a)0.126a± 0.006
Eccentricity (e)0.5± 0.04 Inclination (i)33.4°± 3.6 Longitude of periastron (ω)230.5°± 8
Node (Ω)145.7°± 6.7 Notesn ReferenceOle2005c
Equinox2000 Last observation1988 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 167.2 0.168
2001 173.9 0.172
2002 180.3 0.174
2003 186.8 0.173
2004 193.4 0.170
2005 200.4 0.164
2006 207.8 0.157
2007 216.1 0.149
2008 225.5 0.139
2009 236.5 0.128
2010 249.6 0.116
2011 265.8 0.104
2012 286.3 0.091
2013 313.8 0.077
2014 355.3 0.061
2015 56.3 0.057
2016 101.2 0.079
2017 124.5 0.105
2018 138.9 0.127
2019 149.4 0.145
2020 157.9 0.157
2021 165.3 0.166
2022 172.2 0.171
2023 178.7 0.174
2024 185.1 0.173
2025 191.7 0.171
2026 198.5 0.166
2027 205.8 0.159
2028 213.9 0.151
2029 223.0 0.141
2030 233.5 0.131


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



 
 


wds00416%2B2438a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic