12244+2535 STF 1639 AB (HD 108007)

 
 
12h 24m 26.81s +25° 34' 56.7" P.A. 324.00 sep 1.9 mag 6.74,7.83 Sp A7V+F4V dist. 90.25 pc (294.4 l.y.)
 
 
Coord 2000 12244+2535 Discov num STF1639 Comp AB Coord arcsec 2000 12 24 26.81 +25 34 56.7
Date first 1827 Date last 2019 Obs 446
Pa first 291 Pa last 323.6 P.A. Now (θ) 323.6°
Sep first 1.3 Sep last 1.88 Sep. Now (ρ) 1.88"
Mag pri 6.74 Mag sec 7.83 delta mag (ΔM) 1.09 Spectral class A7V+F4V (white/yellow-white)
Pri motion ra -013 Sec motion ra -013
Pri motion dec -013 Sec motion dec -013
Notes O (Orbital solution)
This double is physical.
 
 
12244+2535 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 108007 82293 12 24 27 +25 34 57 STF 1639 AB 2019 446 324 1.9 6.74 7.83 1.09 Y <===
Show 82293 12 24 27 +25 34 57 STF 1639 AC 2015 11 159 91.4 6.74 11.42 4.68
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 108007 Constellation Coma Berenices SAO 82293 HIP 60525
Tycho2 1989-03211-1 Gaia DR2 4008366950132501120 HD 108007 HR 4719
GC 16911 ADS 8539 BD BD+26 2345 Distance 90.25
Distance ly 294.4
 
 
ORBITAL ELEMENTS
 
 
Period (P)575.44y Periastron (T)1891.75y Semi-major axis (a)1.224a
Eccentricity (e)0.926 Inclination (i)150.4° Longitude of periastron (ω)9.7°
Node (Ω)140.8° Notes ReferenceOle2000b
Equinox Last observation2000 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 324.6 1.712
2001 324.5 1.720
2002 324.4 1.728
2003 324.3 1.736
2004 324.2 1.744
2005 324.1 1.751
2006 324.0 1.759
2007 323.9 1.767
2008 323.8 1.774
2009 323.7 1.782
2010 323.6 1.789
2011 323.5 1.796
2012 323.4 1.804
2013 323.3 1.811
2014 323.2 1.818
2015 323.1 1.825
2016 323.0 1.832
2017 323.0 1.839
2018 322.9 1.846
2019 322.8 1.853
2020 322.7 1.860
2021 322.6 1.867
2022 322.5 1.873
2023 322.4 1.880
2024 322.3 1.886
2025 322.2 1.893
2026 322.2 1.899
2027 322.1 1.906
2028 322.0 1.912
2029 321.9 1.918
2030 321.8 1.925


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



 
 


wds12244%2B2535a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic