12372+2112 STF1663

 
 
12H 37M 10.81S +21 11' 52.5" P.A. 67.2 SEP 0.63 MAG 8.03,9.16 SP F3V DIST. 187.27 PC (610.87 L.Y.)
 
 
Coord 2000
12372+2112
Discov num
STF1663
Comp
Coord arcsec 2000
12 37 10.81 +21 11 52.5
Date first
1830
Date last
2014
Obs
126
Pa first
118
Pa last
66
P.A. Now (θ)
67.2°
Sep first
0.8
Sep last
0.7
Sep. Now (ρ)
0.63"
Mag pri
8.03
Mag sec
9.16
delta mag (ΔM)
1.13
Spectral class
F3V (yellow-white)
Pri motion ra
-012
Sec motion ra
-012
Pri motion dec
-023
Sec motion dec
-023
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Coma Berenices
SAO
82402
HIP
61584
Tycho2
1448-02165-1
HD
109782
ADS
8611
BD
BD+21 2436
Distance
187.27
Distance ly
610.87
last precise pa
66
last precise sep
0.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)986y Periastron (T)1671y Semi-major axis (a)0.701a
Eccentricity (e)0.07 Inclination (i)141.5° Longitude of periastron (ω)280.9°
Node (Ω)113.7° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.646 73.0
2001 0.646 72.7
2002 0.645 72.4
2003 0.644 72.0
2004 0.644 71.7
2005 0.643 71.4
2006 0.642 71.0
2007 0.641 70.7
2008 0.641 70.3
2009 0.640 70.0
2010 0.639 69.7
2011 0.639 69.3
2012 0.638 69.0
2013 0.637 68.6
2014 0.636 68.3
2015 0.636 67.9
2016 0.635 67.6
2017 0.634 67.2
2018 0.634 66.9
2019 0.633 66.5
2020 0.632 66.2
2021 0.631 65.8
2022 0.631 65.5
2023 0.630 65.1
2024 0.629 64.8
2025 0.629 64.4
2026 0.628 64.1
2027 0.627 63.7
2028 0.627 63.4
2029 0.626 63.0
2030 0.625 62.6

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