12042+2407 A   682

 
 
12h 04m 12.06s +24 07' 10.1" P.A. 175.1 sep 0.2 mag 8.82,10.76 Sp F2V dist. 206.19 pc (672.59 l.y.)
 
 
Coord 2000
12042+2407
Discov num
A   682
Comp
Coord arcsec 2000
12 04 12.06 +24 07 10.1
Date first
1904
Date last
1991
Obs
30
Pa first
336
Pa last
251
P.A. Now (θ)
175.1°
Sep first
0.4
Sep last
0.1
Sep. Now (ρ)
0.2"
Mag pri
8.82
Mag sec
10.76
delta mag (ΔM)
1.94
Spectral class
F2V (yellow-white)
Pri motion ra
-032
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
251
Precise sep
0.143
Constellation
Coma Berenices
SAO
82122
HIP
58850
Tycho2
1986-00896-1
HD
104815
ADS
8405
BD
BD+24 2422
Distance
206.19
Distance ly
672.59
last precise pa
251
last precise sep
0.143
 
 
ORBITAL ELEMENTS
 
 
Period (P)380y Periastron (T)1999.48y Semi-major axis (a)0.389a
Eccentricity (e)0.27 Inclination (i)116.5° Longitude of periastron (ω)276.5°
Node (Ω)143.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.131 217.3
2001 0.133 213.8
2002 0.135 210.3
2003 0.138 207.0
2004 0.142 203.9
2005 0.145 200.9
2006 0.149 198.0
2007 0.153 195.3
2008 0.157 192.8
2009 0.162 190.3
2010 0.166 188.0
2011 0.171 185.9
2012 0.176 183.8
2013 0.181 181.9
2014 0.186 180.1
2015 0.191 178.3
2016 0.196 176.7
2017 0.201 175.1
2018 0.206 173.6
2019 0.212 172.2
2020 0.217 170.9
2021 0.222 169.6
2022 0.227 168.4
2023 0.232 167.2
2024 0.237 166.1
2025 0.242 165.0
2026 0.247 164.0
2027 0.252 163.0
2028 0.256 162.0
2029 0.261 161.1
2030 0.266 160.2

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

grafico orbita





wds12042%2B2407a.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
12042+2407 A 682 1991 29 251 0.1 8.82 10.76 F2V N 120412.06+240710.1

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