12268-0536 A    78

 
 
12H 26M 47.72S -05 35' 31.6" P.A. 79.1 SEP 0.32 MAG 8.11,8.79 SP F4V DIST. 110.38 PC (360.06 L.Y.)
 
 
Coord 2000
12268-0536
Discov num
A    78
Comp
Coord arcsec 2000
12 26 47.72 -05 35 31.6
Date first
1900
Date last
2009
Obs
43
Pa first
86
Pa last
72
P.A. Now (θ)
79.1°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.32"
Mag pri
8.11
Mag sec
8.79
delta mag (ΔM)
0.68
Spectral class
F4V (yellow-white)
Pri motion ra
+016
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
 
 
Constellation
Virgo
HIP
60727
Tycho2
4947-01348-1
HD
108320
ADS
8551
BD
BD-04 3281
Distance
110.38
Distance ly
360.06
last precise pa
71.9
last precise sep
0.246
 
 
ORBITAL ELEMENTS
 
 
Period (P)111.93y± 1.72 Periastron (T)1997.5y± 0.4 Semi-major axis (a)0.263a± 0.005
Eccentricity (e)0.798± 0.008 Inclination (i)49.3°± 2.2 Longitude of periastron (ω)42.1°± 4.9
Node (Ω)249.9°± 3.2 Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation2007
label rho theta
2000 0.068 26.6
2001 0.092 40.6
2002 0.115 48.8
2003 0.137 54.3
2004 0.157 58.4
2005 0.175 61.6
2006 0.191 64.2
2007 0.207 66.4
2008 0.221 68.3
2009 0.235 70.0
2010 0.248 71.5
2011 0.259 72.8
2012 0.271 74.1
2013 0.281 75.2
2014 0.291 76.3
2015 0.300 77.3
2016 0.309 78.3
2017 0.317 79.1
2018 0.325 80.0
2019 0.332 80.8
2020 0.339 81.6
2021 0.346 82.3
2022 0.352 83.0
2023 0.358 83.7
2024 0.363 84.4
2025 0.369 85.1
2026 0.373 85.7
2027 0.378 86.3
2028 0.382 86.9
2029 0.386 87.5
2030 0.390 88.1

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