09252+4606 HDS 1353 (HD 81105)

 
 
09h 25m 10.78s +46° 05' 53.6" P.A. 167.00 sep 0.4 mag 9.36,11.49 Sp K5V+M1.5V dist. 25.71 pc (83.87 l.y.)
 
 
Coord 2000 09252+4606 Discov num HDS1353 Comp Coord arcsec 2000 09 25 10.78 +46 05 53.6
Date first 1991 Date last 2019 Obs 31
Pa first 304 Pa last 166.6 P.A. Now (θ) 166.6°
Sep first 0.3 Sep last 0.41 Sep. Now (ρ) 0.41"
Mag pri 9.36 Mag sec 11.49 delta mag (ΔM) 2.13 Spectral class K5V+M1.5V (yellow-orange/red)
Pri motion ra -231 Sec motion ra
Pri motion dec +020 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81105 Constellation Ursa Major SAO 42846 HIP 46199
Tycho2 3425-01073-1 Gaia DR2 819208081921567232 HD 81105 BD BD+46 1500
Distance 25.71 Distance ly 83.87
 
 
ORBITAL ELEMENTS
 
 
Period (P)111.8y± 4.8 Periastron (T)1996.2y± 0.2 Semi-major axis (a)693.7m± 20.5
Eccentricity (e)0.891± 0.008 Inclination (i)77.8°± 0.4 Longitude of periastron (ω)264.8°± 0.5
Node (Ω)138.6°± 0.5 Notes ReferenceMit2020
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 146.5 0.271
2001 148.4 0.298
2002 149.9 0.320
2003 151.3 0.337
2004 152.5 0.351
2005 153.7 0.363
2006 154.8 0.373
2007 155.9 0.381
2008 156.9 0.388
2009 157.8 0.394
2010 158.8 0.399
2011 159.7 0.402
2012 160.6 0.405
2013 161.5 0.408
2014 162.4 0.410
2015 163.3 0.411
2016 164.2 0.411
2017 165.0 0.412
2018 165.9 0.411
2019 166.8 0.411
2020 167.7 0.410
2021 168.6 0.408
2022 169.5 0.407
2023 170.4 0.405
2024 171.3 0.403
2025 172.2 0.400
2026 173.1 0.398
2027 174.1 0.395
2028 175.0 0.392
2029 176.0 0.389
2030 177.0 0.386


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


 
  


wds09252%2B4606c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic