09446+6459 CHR 176 (HD 83962)

09h 44m 36.62s +64° 59' 02.6" P.A. 212.00 sep 0.1 mag 6.80,7.20 Sp A3V+A7V dist. 95.42 pc (311.26 l.y.)

Coord 2000 09446+6459 Discov num CHR 176 Comp Coord arcsec 2000 09 44 36.62 +64 59 02.6
Date first 1988 Date last 2019 Obs 18
Pa first 60 Pa last 212.2 P.A. Now (θ) 18.1°
Sep first 0.1 Sep last 0.063 Sep. Now (ρ) 0.09"
Mag pri 6.80 Mag sec 7.20 delta mag (ΔM) 0.4 Spectral class A3V+A7V (white/white)
Pri motion ra -047 Sec motion ra
Pri motion dec +025 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 83962 Constellation Ursa Major SAO 14976 HIP 47791
Tycho2 4139-00836-1 Gaia DR2 1064771050364196736 HD 83962 HR 3859
GC 13408 BD BD+65 731 Distance 95.42 Distance ly 311.26




ORBITAL ELEMENTS

Period (P)20.73y± 0.01 Periastron (T)1999.78y± 0.01 Semi-major axis (a)114.1m± 0.7
Eccentricity (e)0.373± 0.008 Inclination (i)76.3°± 0.2 Longitude of periastron (ω)259.7°± 0.1
Node (Ω)22.2°± 0.2 Notes ReferenceMit2020
Equinox Last observation Grade2(1=Definitive, 9=Indet.)

label theta rho
2000 286.7 0.017
2001 4.6 0.049
2002 16.3 0.083
2003 21.9 0.104
2004 26.0 0.113
2005 29.9 0.113
2006 33.9 0.107
2007 38.8 0.095
2008 45.3 0.080
2009 55.0 0.064
2010 71.4 0.048
2011 99.9 0.038
2012 135.4 0.039
2013 160.8 0.051
2014 175.3 0.067
2015 184.3 0.082
2016 190.7 0.094
2017 196.0 0.099
2018 201.2 0.094
2019 208.0 0.075
2020 223.7 0.040
2021 327.6 0.021
2022 9.1 0.060
2023 18.1 0.090
2024 23.1 0.108
2025 27.1 0.114
2026 30.9 0.112
2027 35.2 0.104
2028 40.4 0.091
2029 47.5 0.076
2030 58.6 0.059


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



 
 


wds09446%2B6459c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic