03489+1143 A   831 (V1243 Tau)

 
 
03H 48M 51.57S +11 42' 31.7" P.A. 84.3 SEP 0.19 MAG 8.54,10.00 SP F0 DIST. 153.14 PC (499.54 L.Y.)
 
 
Coord 2000
03489+1143
Discov num
A   831
Comp
Coord arcsec 2000
03 48 51.57 +11 42 31.7
Date first
1904
Date last
2009
Obs
26
Pa first
339
Pa last
51
P.A. Now (θ)
84.3°
Sep first
0.5
Sep last
0.2
Sep. Now (ρ)
0.19"
Mag pri
8.54
Mag sec
10.00
delta mag (ΔM)
1.46
Spectral class
F0 (yellow-white)
Pri motion ra
-009
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V1243 Tau
Constellation
Taurus
SAO
93616
HIP
17826
Tycho2
0661-00087-1
HD
23874
ADS
2785
BD
BD+11 526
Distance
153.14
Distance ly
499.54
last precise pa
50.8
last precise sep
0.234
 
 
ORBITAL ELEMENTS
 
 
Period (P)192y Periastron (T)2051y Semi-major axis (a)0.434a
Eccentricity (e)0.452 Inclination (i)64.5° Longitude of periastron (ω)30.5°
Node (Ω)165.2° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.276 36.1
2001 0.269 37.9
2002 0.261 39.9
2003 0.254 41.9
2004 0.247 44.1
2005 0.240 46.4
2006 0.234 48.8
2007 0.228 51.3
2008 0.222 54.0
2009 0.216 56.8
2010 0.211 59.8
2011 0.206 62.9
2012 0.202 66.2
2013 0.198 69.6
2014 0.195 73.1
2015 0.192 76.8
2016 0.190 80.5
2017 0.188 84.3
2018 0.187 88.1
2019 0.187 92.0
2020 0.188 95.9
2021 0.189 99.7
2022 0.190 103.5
2023 0.192 107.2
2024 0.195 110.8
2025 0.198 114.3
2026 0.202 117.7
2027 0.206 121.0
2028 0.210 124.1
2029 0.214 127.1
2030 0.219 130.0

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