12165+3304 CHR  37

 
 
12H 16M 30.17S +33 03' 42.5" P.A. 172 SEP 0.3 MAG 5.00, SP K0.5III DIST. 96.99 PC (316.38 L.Y.)
 
 
Coord 2000
12165+3304
Discov num
CHR  37
Comp
Coord arcsec 2000
12 16 30.17 +33 03 42.5
Date first
1983
Date last
1983
Obs
1
Pa first
172
Pa last
172
P.A. Now (θ)
172°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
5.00
Mag sec
delta mag (ΔM)
Spectral class
K0.5III (yellow-orange)
Pri motion ra
-053
Sec motion ra
Pri motion dec
-111
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Coma Berenices
SAO
62928
HIP
59856
Tycho2
2527-02202-1
HD
106760
HR
4668
BD
BD+33 2213
Distance
96.99
Distance ly
316.38
last precise pa
171.9
last precise sep
0.257
 
 
ORBITAL ELEMENTS
 
 
Period (P)1314.3d (3.6y) Periastron (T)41468.5d (1972.413y) Semi-major axis (a)6.6m± 2.89
Eccentricity (e)0.426 Inclination (i)120.06°± 20.16 Longitude of periastron (ω)303.6°
Node (Ω)77.87°± 16.18 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1991
label rho theta
2000-01-01 0.008 272.9
2001-01-01 0.002 199.6
2002-01-01 0.004 22.9
2003-01-01 0.007 294.9
2004-01-01 0.007 259.6
2005-01-01 0.004 80.6
2006-01-01 0.004 337.1
2007-01-01 0.008 279.3
2008-01-01 0.004 236.7
2009-01-01 0.005 43.5
2010-01-01 0.006 305.2
2011-01-01 0.008 266.4
2012-01-01 0.003 113.7
2013-01-01 0.004 359.1
2014-01-01 0.007 286.3
2015-01-01 0.006 250.6
2016-01-01 0.005 61.3
2017-01-01 0.005 318.6
2018-01-01 0.008 272.7
2019-01-01 0.002 196.8
2020-01-01 0.004 22.1
2021-01-01 0.007 294.5
2022-01-01 0.007 259.3
2023-01-01 0.004 79.8
2024-01-01 0.004 336.3
2025-01-01 0.008 279.0
2026-01-01 0.004 235.9
2027-01-01 0.005 42.7
2028-01-01 0.006 304.7
2029-01-01 0.008 266.1
2030-01-01 0.003 111.6

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