12409+2708 COU 596 (HD 110297)

 
 
12h 40m 55.44s +27° 08' 20.9" P.A. 197.00 sep 0.2 mag 8.50,8.70 Sp F5V dist. 151.06 pc (492.76 l.y.)
 
 
Coord 2000 12409+2708 Discov num COU 596 Comp Coord arcsec 2000 12 40 55.44 +27 08 20.9
Date first 1971 Date last 2014 Obs 30
Pa first 209 Pa last 197.2 P.A. Now (θ) 191°
Sep first 0.2 Sep last 0.173 Sep. Now (ρ) 0.1"
Mag pri 8.50 Mag sec 8.70 delta mag (ΔM) 0.2 Spectral class F5V (yellow-white)
Pri motion ra -047 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 110297 Constellation Coma Berenices SAO 82439 HIP 61890
Tycho2 1992-01456-1 Gaia DR2 3962256662278634112 HD 110297 BD BD+27 2158
Distance 151.06 Distance ly 492.76
 
 
ORBITAL ELEMENTS
 
 
Period (P)38.13y Periastron (T)1988.88y Semi-major axis (a)0.118a
Eccentricity (e)0.976 Inclination (i)140.5° Longitude of periastron (ω)60.1°
Node (Ω)78° Notesn ReferenceDoc2013a
Equinox2000 Last observation2008 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 209.6 0.176
2001 208.9 0.181
2002 208.3 0.185
2003 207.6 0.188
2004 207.0 0.191
2005 206.4 0.193
2006 205.8 0.194
2007 205.2 0.195
2008 204.7 0.194
2009 204.1 0.194
2010 203.5 0.192
2011 202.9 0.190
2012 202.3 0.187
2013 201.6 0.184
2014 200.9 0.179
2015 200.2 0.174
2016 199.5 0.169
2017 198.7 0.162
2018 197.8 0.155
2019 196.8 0.146
2020 195.7 0.137
2021 194.4 0.126
2022 192.9 0.114
2023 191.0 0.100
2024 188.3 0.084
2025 184.4 0.065
2026 176.2 0.041
2027 57.0 0.003
2028 227.8 0.051
2029 222.4 0.074
2030 219.3 0.094


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



 
 


wds12409%2B2708c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic