12108+3953 STF 1606 (HD 105824)

 
 
12h 10m 47.34s +39° 53' 29.5" P.A. 143.00 sep 0.7 mag 7.44,7.93 Sp A8III dist. 120.19 pc (392.06 l.y.)
 
 
Coord 2000 12108+3953 Discov num STF1606 Comp Coord arcsec 2000 12 10 47.34 +39 53 29.5
Date first 1830 Date last 2019 Obs 270
Pa first 349 Pa last 142.5 P.A. Now (θ) 142.5°
Sep first 0.8 Sep last 0.65 Sep. Now (ρ) 0.65"
Mag pri 7.44 Mag sec 7.93 delta mag (ΔM) 0.49 Spectral class A8III (white)
Pri motion ra -029 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 105824 Constellation Canes Venatici SAO 44064 HIP 59366
Tycho2 3017-00781-1 Gaia DR2 1535854814419613824 HD 105824 GC 16631
ADS 8446 BD BD+40 2508 Distance 120.19 Distance ly 392.06
 
 
ORBITAL ELEMENTS
 
 
Period (P)1431y± 78 Periastron (T)1988.32y± 0.98 Semi-major axis (a)2.002a± 0.096
Eccentricity (e)0.7796± 0.0043 Inclination (i)129.5°± 1.8 Longitude of periastron (ω)256.7°± 3
Node (Ω)122.2°± 1.5 Notesn ReferenceMsn1999a
Equinox2000 Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 179.2 0.337
2001 175.8 0.349
2002 172.6 0.361
2003 169.6 0.374
2004 166.9 0.388
2005 164.3 0.402
2006 161.9 0.416
2007 159.6 0.430
2008 157.5 0.445
2009 155.6 0.460
2010 153.7 0.474
2011 152.0 0.489
2012 150.4 0.504
2013 148.8 0.519
2014 147.4 0.534
2015 146.0 0.549
2016 144.7 0.563
2017 143.5 0.578
2018 142.3 0.593
2019 141.2 0.607
2020 140.1 0.621
2021 139.1 0.635
2022 138.1 0.649
2023 137.2 0.663
2024 136.3 0.677
2025 135.5 0.691
2026 134.6 0.704
2027 133.8 0.718
2028 133.1 0.731
2029 132.3 0.744
2030 131.6 0.757


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



 
 


wds12108%2B3953a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier12108+3953 STF1606 A
coord_arcsec_2000121047.34+395329.5
Period (P)75y Periastron (T)1880.276y Semi-major axis (a)0.078a
Eccentricity (e)0.37299 Inclination (i)83.137° Longitude of periastron (ω)191.57°
Node (Ω)138.419° Notesn ReferencevdW1974
Equinox1900 Last observation1973 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 142.2 0.091
2001 142.6 0.088
2002 143.0 0.085
2003 143.5 0.082
2004 144.0 0.078
2005 144.6 0.074
2006 145.2 0.070
2007 145.9 0.065
2008 146.7 0.060
2009 147.7 0.056
2010 148.8 0.050
2011 150.3 0.045
2012 152.1 0.039
2013 154.5 0.034
2014 157.9 0.028
2015 163.1 0.022
2016 171.9 0.017
2017 188.9 0.012
2018 222.5 0.009
2019 262.2 0.010
2020 285.0 0.014
2021 296.3 0.020
2022 302.7 0.025
2023 306.9 0.031
2024 309.8 0.036
2025 312.0 0.040
2026 313.8 0.044
2027 315.3 0.047
2028 316.7 0.049
2029 318.1 0.049
2030 319.4 0.048


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



 
 


wds12108%2B3953r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic