09005+3225 HU 718 (HD 76975)

 
 
09h 00m 30.68s +32 25' 03.2" P.A. 42.00 sep 0.2 mag 9.30,9.49 Sp G5 dist. 89.05 pc (290.48 l.y.)
 
 
Coord 2000 09005+3225 Discov num HU  718 Comp Coord arcsec 2000 09 00 30.68 +32 25 03.2
Date first 1904 Date last 2013 Obs 38
Pa first 201 Pa last 42.4 P.A. Now (θ) 217.2°
Sep first 0.5 Sep last 0.224 Sep. Now (ρ) 0.201"
Mag pri 9.30 Mag sec 9.49 delta mag (ΔM) 0.19 Spectral class G5 (yellow)
Pri motion ra +046 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 76975 Constellation Cancer SAO 61192 HIP 44230
Tycho2 2492-00013-1 Gaia DR2 712110323617683712 HD 76975 ADS 7124
BD BD+32 1826 Distance 89.05 Distance ly 290.48
 
 
ORBITAL ELEMENTS
 
 
Period (P)139.765y± 1.185 Periastron (T)2019.142y± 0.887 Semi-major axis (a)0.552a± 0.061
Eccentricity (e)0.783± 0.036 Inclination (i)102.1°± 2.4 Longitude of periastron (ω)79.3°± 2.3
Node (Ω)34.3°± 6.5 Notesn ReferenceFMR2015b
Equinox2000 Last observation2010 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 58.2 0.272
2001 56.8 0.275
2002 55.5 0.278
2003 54.2 0.280
2004 52.9 0.281
2005 51.6 0.282
2006 50.3 0.282
2007 49.0 0.281
2008 47.7 0.280
2009 46.4 0.277
2010 45.0 0.273
2011 43.6 0.266
2012 42.2 0.258
2013 40.5 0.246
2014 38.8 0.231
2015 36.7 0.211
2016 34.0 0.184
2017 30.3 0.147
2018 23.3 0.098
2019 357.3 0.040
2020 248.0 0.046
2021 226.5 0.105
2022 220.4 0.157
2023 217.2 0.201
2024 215.0 0.237
2025 213.4 0.267
2026 212.1 0.293
2027 211.0 0.315
2028 210.0 0.334
2029 209.1 0.350
2030 208.3 0.365


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



 
 


wds09005%2B3225a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic