11363+2747 STF1555AB

 
 
11H 36M 17.94S +27 46' 52.7" P.A. 150.6 SEP 0.66 MAG 6.41,6.78 SP F0V DIST. 71.58 PC (233.49 L.Y.)
 
 
Coord 2000
11363+2747
Discov num
STF1555
Comp
AB
Coord arcsec 2000
11 36 17.94 +27 46 52.7
Date first
1829
Date last
2016
Obs
296
Pa first
339
Pa last
148
P.A. Now (θ)
150.6°
Sep first
1.3
Sep last
0.8
Sep. Now (ρ)
0.66"
Mag pri
6.41
Mag sec
6.78
delta mag (ΔM)
0.37
Spectral class
F0V (yellow-white)
Pri motion ra
+027
Sec motion ra
+027
Pri motion dec
+013
Sec motion dec
+013
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
11363+2747 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 81893 11363+2747 STF1555 AB 1829 2016 296 151 0.7 6.41 6.78 0.37 Y <===
Show 81893 11363+2747 HJ 503 AB,C 1827 2016 55 156 22.5 5.83 11.17 5.34
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
SAO
81893
HIP
56601
Tycho2
1984-02611-1
HD
100808
HR
4465
ADS
8231
BD
BD+28 2022
Distance
71.58
Distance ly
233.49
last precise pa
148.2
last precise sep
0.76
 
 
ORBITAL ELEMENTS
 
 
Period (P)1730y Periastron (T)2023.2y Semi-major axis (a)3.042a
Eccentricity (e)0.778 Inclination (i)86.1° Longitude of periastron (ω)22.4°
Node (Ω)149.8° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.703 147.4
2001 0.707 147.6
2002 0.710 147.8
2003 0.712 147.9
2004 0.714 148.1
2005 0.716 148.2
2006 0.717 148.4
2007 0.717 148.6
2008 0.717 148.7
2009 0.716 148.9
2010 0.715 149.1
2011 0.712 149.2
2012 0.709 149.4
2013 0.706 149.5
2014 0.701 149.7
2015 0.696 149.9
2016 0.690 150.0
2017 0.683 150.2
2018 0.676 150.4
2019 0.668 150.6
2020 0.659 150.8
2021 0.649 151.0
2022 0.638 151.2
2023 0.627 151.4
2024 0.615 151.6
2025 0.602 151.8
2026 0.589 152.0
2027 0.574 152.3
2028 0.559 152.5
2029 0.544 152.8
2030 0.528 153.1

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