12244+2535 STF1639AB

 
 
12H 24M 26.81S +25 34' 56.7" P.A. 323 SEP 1.84 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
2016
Obs
431
Pa first
291
Pa last
325
P.A. Now (θ)
323°
Sep first
1.3
Sep last
1.9
Sep. Now (ρ)
1.84"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 82293 12244+2535 STF1639 AB 1827 2016 431 323 1.8 6.74 7.83 1.09 Y <===
Show 82293 12244+2535 STF1639 AC 1908 2015 10 159 91.4 6.74 11.42 4.68
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Coma Berenices
SAO
82293
HIP
60525
Tycho2
1989-03211-1
HD
108007
HR
4719
ADS
8539
BD
BD+26 2345
Distance
90.25
Distance ly
294.4
last precise pa
324.7
last precise sep
1.88
 
 
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° Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation2000
label rho theta
2000 1.712 324.6
2001 1.720 324.5
2002 1.728 324.4
2003 1.736 324.3
2004 1.744 324.2
2005 1.751 324.1
2006 1.759 324.0
2007 1.767 323.9
2008 1.774 323.8
2009 1.782 323.7
2010 1.789 323.6
2011 1.796 323.5
2012 1.804 323.4
2013 1.811 323.3
2014 1.818 323.2
2015 1.825 323.1
2016 1.832 323.0
2017 1.839 323.0
2018 1.846 322.9
2019 1.853 322.8
2020 1.860 322.7
2021 1.867 322.6
2022 1.873 322.5
2023 1.880 322.4
2024 1.886 322.3
2025 1.893 322.2
2026 1.899 322.2
2027 1.906 322.1
2028 1.912 322.0
2029 1.918 321.9
2030 1.925 321.8

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic