12042+2407 A 682 (HD 104815)

 
 
12h 04m 12.06s +24° 07' 10.1" P.A. 179.00 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 2014 Obs 35
Pa first 336 Pa last 178.6 P.A. Now (θ) 178.6°
Sep first 0.4 Sep last 0.199 Sep. Now (ρ) 0.199"
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
 
 
Name HD 104815 Constellation Coma Berenices SAO 82122 HIP 58850
Tycho2 1986-00896-1 Gaia DR2 4002673094807913856 HD 104815 ADS 8405
BD BD+24 2422 Distance 206.19 Distance ly 672.59
 
 
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° Notesn ReferenceFMR2015a
Equinox2000 Last observation2013 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 217.3 0.131
2001 213.8 0.133
2002 210.3 0.135
2003 207.0 0.138
2004 203.9 0.142
2005 200.9 0.145
2006 198.0 0.149
2007 195.3 0.153
2008 192.8 0.157
2009 190.3 0.162
2010 188.0 0.166
2011 185.9 0.171
2012 183.8 0.176
2013 181.9 0.181
2014 180.1 0.186
2015 178.3 0.191
2016 176.7 0.196
2017 175.1 0.201
2018 173.6 0.206
2019 172.2 0.212
2020 170.9 0.217
2021 169.6 0.222
2022 168.4 0.227
2023 167.2 0.232
2024 166.1 0.237
2025 165.0 0.242
2026 164.0 0.247
2027 163.0 0.252
2028 162.0 0.256
2029 161.1 0.261
2030 160.2 0.266


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



 
 


wds12042%2B2407a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic