12194+1744 A  2059

 
 
12H 19M 22.27S +17 43' 43.6" P.A. 34 SEP 0.5 MAG 8.33,10.22 SP F5 DIST. 77.34 PC (252.28 L.Y.)
 
 
Coord 2000
12194+1744
Discov num
A  2059
Comp
Coord arcsec 2000
12 19 22.27 +17 43 43.6
Date first
1909
Date last
2010
Obs
24
Pa first
314
Pa last
34
P.A. Now (θ)
34°
Sep first
0.6
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.33
Mag sec
10.22
delta mag (ΔM)
1.89
Spectral class
F5 (yellow-white)
Pri motion ra
+027
Sec motion ra
Pri motion dec
-060
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Coma Berenices
SAO
100040
HIP
60091
Tycho2
1445-00682-1
HD
107169
BD
BD+18 2589
Distance
77.34
Distance ly
252.28
last precise pa
33.9
last precise sep
0.45
 
 
ORBITAL ELEMENTS
 
 
Period (P)244.8y Periastron (T)2040.96y Semi-major axis (a)0.647a
Eccentricity (e)0.677 Inclination (i)60.1° Longitude of periastron (ω)82.2°
Node (Ω)61.1° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2016
label rho theta
2000 0.493 24.2
2001 0.491 25.1
2002 0.490 26.1
2003 0.488 27.0
2004 0.486 28.0
2005 0.484 28.9
2006 0.482 29.9
2007 0.479 30.9
2008 0.477 31.9
2009 0.474 32.9
2010 0.471 33.9
2011 0.468 34.9
2012 0.464 35.9
2013 0.461 37.0
2014 0.457 38.1
2015 0.452 39.1
2016 0.448 40.3
2017 0.442 41.4
2018 0.437 42.6
2019 0.431 43.8
2020 0.425 45.0
2021 0.418 46.3
2022 0.410 47.6
2023 0.402 49.0
2024 0.393 50.4
2025 0.384 51.9
2026 0.373 53.5
2027 0.362 55.1
2028 0.350 56.9
2029 0.337 58.8
2030 0.322 60.9

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