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Current system
00026-0829
A 428
HD 225015


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Selections
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Binary Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

00026-0829 A 428 (HD 225015)

 
 
00h 02m 38.92s -08° 29' 16.6" P.A. 274.00 sep 0.1 mag 9.82,10.07 Sp G0 dist. 134.77 pc (439.62 l.y.)
 
 
Coord 2000 00026-0829 Discov num A   428 Comp Coord arcsec 2000 00 02 38.92 -08 29 16.6
Date first 1902 Date last 2022 Obs 45
Pa first 111 Pa last 274 P.A. Now (θ) 274°
Sep first 0.2 Sep last 0.122 Sep. Now (ρ) 0.122"
Mag pri 9.82 Mag sec 10.07 delta mag (ΔM) 0.25 Spectral class G0 (yellow)
Pri motion ra +000 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 225015 Constellation Cetus SAO 128549 HIP 210
Tycho2 5260-00354-1 Gaia DR2 2441125824679584896 HD 225015 ADS 4
BD BD-09 6310 Distance 134.77 Distance ly 439.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)761y Periastron (T)1995.6y Semi-major axis (a)0.793a
Eccentricity (e)0.644 Inclination (i)108.8° Longitude of periastron (ω)210.3°
Node (Ω)197.9° Notes ReferenceTok2023a
Equinox2000 Last observation2022 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 1.3 0.218
2001 359.7 0.211
2002 358.0 0.204
2003 356.2 0.196
2004 354.2 0.188
2005 352.0 0.181
2006 349.7 0.173
2007 347.1 0.166
2008 344.3 0.158
2009 341.3 0.151
2010 337.9 0.145
2011 334.2 0.138
2012 330.2 0.132
2013 325.8 0.127
2014 321.1 0.122
2015 316.0 0.118
2016 310.6 0.115
2017 305.0 0.113
2018 299.2 0.112
2019 293.3 0.112
2020 287.5 0.113
2021 281.8 0.115
2022 276.4 0.118
2023 271.4 0.122
2024 266.6 0.127
2025 262.3 0.133
2026 258.3 0.139
2027 254.7 0.145
2028 251.3 0.153
2029 248.3 0.160
2030 245.6 0.168
2031 243.1 0.176
2032 240.9 0.184
2033 238.8 0.193
2034 236.9 0.201
2035 235.2 0.210
2036 233.6 0.219
2037 232.1 0.228
2038 230.8 0.237
2039 229.5 0.246
2040 228.3 0.255
2041 227.2 0.264
2042 226.2 0.273
2043 225.2 0.281
2044 224.4 0.290
2045 223.5 0.299
2046 222.7 0.308
2047 222.0 0.317
2048 221.3 0.326
2049 220.6 0.335
2050 219.9 0.343


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds00026-0829c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic