11330+0938 A  2576AB

 
 
11H 33M 03.00S +09 37' 38.8" P.A. 263.4 SEP 0.54 MAG 10.15,10.23 SP G5
 
 
Coord 2000
11330+0938
Discov num
A  2576
Comp
AB
Coord arcsec 2000
11 33 03.00 +09 37 38.8
Date first
1913
Date last
1991
Obs
10
Pa first
201
Pa last
238
P.A. Now (θ)
263.4°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.54"
Mag pri
10.15
Mag sec
10.23
delta mag (ΔM)
0.08
Spectral class
G5 (yellow)
Pri motion ra
+024
Sec motion ra
+024
Pri motion dec
-025
Sec motion dec
-025
Notes
O (Orbital solution)
This double is physical.
 
 
11330+0938 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 11330+0938 A 2576 AB 1913 1991 10 263 0.5 10.15 10.23 0.08 Y <===
Show 11330+0938 A 2576 AB,C 1910 2015 8 237 32.0 9.44 11.80 2.36
Show 11330+0938 J 428 CD 1911 2015 8 260 4.1 12.00 13.00 1.00
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
Tycho2
0856-00564-1
HD
100361
ADS
8211
last precise pa
238.2
last precise sep
0.45
 
 
ORBITAL ELEMENTS
 
 
Period (P)373.7y Periastron (T)1871.4y Semi-major axis (a)0.645a
Eccentricity (e)0.487 Inclination (i)55.6° Longitude of periastron (ω)95.6°
Node (Ω)11.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2016
label rho theta
2000 0.550 252.0
2001 0.550 252.7
2002 0.549 253.4
2003 0.548 254.0
2004 0.548 254.7
2005 0.547 255.3
2006 0.546 256.0
2007 0.546 256.7
2008 0.545 257.3
2009 0.544 258.0
2010 0.544 258.7
2011 0.543 259.3
2012 0.543 260.0
2013 0.542 260.7
2014 0.542 261.3
2015 0.541 262.0
2016 0.541 262.7
2017 0.541 263.4
2018 0.540 264.0
2019 0.540 264.7
2020 0.540 265.4
2021 0.539 266.1
2022 0.539 266.8
2023 0.539 267.4
2024 0.538 268.1
2025 0.538 268.8
2026 0.538 269.5
2027 0.538 270.2
2028 0.538 270.9
2029 0.538 271.5
2030 0.538 272.2

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