22586-4531 HU 1335 (HD 217084)

 
 
22h 58m 36.41s -45° 31' 09.6" P.A. 34.00 sep 0.2 mag 8.03,9.24 Sp G3V dist. 45.81 pc (149.43 l.y.)
 
 
Coord 2000 22586-4531 Discov num HU 1335 Comp Coord arcsec 2000 22 58 36.41 -45 31 09.6
Date first 1903 Date last 2021 Obs 53
Pa first 90 Pa last 34.1 P.A. Now (θ) 58.9°
Sep first 0.5 Sep last 0.18 Sep. Now (ρ) 0.296"
Mag pri 8.03 Mag sec 9.24 delta mag (ΔM) 1.21 Spectral class G3V (yellow)
Pri motion ra +073 Sec motion ra +073
Pri motion dec +048 Sec motion dec +048
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 217084 Constellation Grus SAO 231376 HIP 113454
Tycho2 8447-00035-1 Gaia DR2 6540497526881683712 HD 217084 CD CD-4614497
CP CP-4610474 Distance 45.81 Distance ly 149.43
 
 
ORBITAL ELEMENTS
 
 
Period (P)43.8y± 0.5 Periastron (T)2016.07y± 0.15 Semi-major axis (a)0.328a± 0.003
Eccentricity (e)0.448± 0.004 Inclination (i)57.9°± 0.5 Longitude of periastron (ω)196.6°± 0.5
Node (Ω)82.3°± 0.5 Notesn ReferenceDoc2022a
Equinox Last observation2019 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 104.7 0.385
2001 107.7 0.364
2002 111.1 0.341
2003 114.9 0.317
2004 119.5 0.291
2005 124.9 0.264
2006 131.7 0.237
2007 140.1 0.210
2008 150.9 0.186
2009 164.5 0.167
2010 180.9 0.155
2011 198.9 0.153
2012 216.3 0.159
2013 231.8 0.171
2014 245.3 0.182
2015 257.7 0.185
2016 270.4 0.177
2017 285.3 0.157
2018 305.4 0.134
2019 331.9 0.121
2020 360.0 0.128
2021 21.8 0.153
2022 36.4 0.188
2023 46.3 0.225
2024 53.4 0.262
2025 58.9 0.296
2026 63.2 0.327
2027 66.8 0.355
2028 69.9 0.380
2029 72.6 0.402
2030 75.1 0.420
2031 77.4 0.436
2032 79.6 0.448
2033 81.6 0.457
2034 83.6 0.463
2035 85.5 0.467
2036 87.5 0.467
2037 89.4 0.465
2038 91.4 0.461
2039 93.4 0.453
2040 95.5 0.444
2041 97.6 0.431
2042 100.0 0.417
2043 102.5 0.400
2044 105.3 0.381
2045 108.3 0.360
2046 111.8 0.337
2047 115.8 0.312
2048 120.5 0.286
2049 126.2 0.259
2050 133.2 0.231


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds22586-4531c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic