11361+1251 STF1554

 
 
11h 36m 06.78s +12 51' 18.8" P.A. 218.5 sep 0.32 mag 9.44,9.63 Sp G5 dist. 97.56 pc (318.24 l.y.)
 
 
Coord 2000
11361+1251
Discov num
STF1554
Comp
Coord arcsec 2000
11 36 06.78 +12 51 18.8
Date first
1829
Date last
2010
Obs
57
Pa first
255
Pa last
209
P.A. Now (θ)
218.5°
Sep first
1.0
Sep last
0.3
Sep. Now (ρ)
0.32"
Mag pri
9.44
Mag sec
9.63
delta mag (ΔM)
0.19
Spectral class
G5 (yellow)
Pri motion ra
-092
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
208.7
Precise sep
0.26
Constellation
Leo
SAO
99686
HIP
56589
Tycho2
0863-00536-1
HD
100797
ADS
8230
BD
BD+13 2433
Distance
97.56
Distance ly
318.24
last precise pa
208.7
last precise sep
0.26
 
 
ORBITAL ELEMENTS
 
 
Period (P)478.88y Periastron (T)1962.44y Semi-major axis (a)0.868a
Eccentricity (e)0.902 Inclination (i)74.8° Longitude of periastron (ω)308.6°
Node (Ω)84.6° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2004
label rho theta
2000 0.210 202.1
2001 0.217 203.6
2002 0.223 204.9
2003 0.229 206.1
2004 0.235 207.3
2005 0.242 208.5
2006 0.248 209.5
2007 0.254 210.5
2008 0.261 211.5
2009 0.267 212.4
2010 0.274 213.3
2011 0.280 214.1
2012 0.287 214.9
2013 0.293 215.7
2014 0.299 216.4
2015 0.306 217.1
2016 0.312 217.8
2017 0.319 218.5
2018 0.325 219.1
2019 0.332 219.7
2020 0.338 220.2
2021 0.344 220.8
2022 0.351 221.3
2023 0.357 221.8
2024 0.363 222.3
2025 0.370 222.8
2026 0.376 223.3
2027 0.382 223.7
2028 0.389 224.1
2029 0.395 224.6
2030 0.401 225.0

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

grafico orbita





wds11361%2B1251a.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
11361+1251 STF1554 2004 54 203 0.2 9.44 9.63 G5 113606.78+125118.8
11361+1251 STF1554 2008 56 205 0.2 9.44 9.63 G5 O 113606.78+125118.8
11361+1251 STF1554 2010 57 209 0.3 9.44 9.63 G5 O 113606.78+125118.8

If you need more information about this double, apply for a data request form to the WDS.