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
 
 
Precise pa
171.9
Precise sep
0.257
Cdsa2 id
CHR 37
Constellation
Coma Berenices
SAO
62928
HIP
59856
Tycho2
2527-02202-1
HD
106760
HR
4668
BD
BD+33 2213
Ra deg
12.275047222222224
De deg
33.06180555555555
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





wds12165%2B3304r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12165+3304 CHR 37 1983 1 172 0.3 5.00   K0.5III NO 121630.17+330342.5

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