10454+3831 HO  532AC

 
 
10H 45M 21.48S +38 30' 42.4" P.A. 37.5 SEP 0.53 MAG 9.42,11.76 SP M2 DIST. 13.92 PC (45.41 L.Y.)
 
 
Coord 2000
10454+3831
Discov num
HO  532
Comp
AC
Coord arcsec 2000
10 45 21.48 +38 30 42.4
Date first
1896
Date last
2012
Obs
21
Pa first
326
Pa last
239
P.A. Now (θ)
37.5°
Sep first
1.2
Sep last
0.6
Sep. Now (ρ)
0.53"
Mag pri
9.42
Mag sec
11.76
delta mag (ΔM)
2.34
Spectral class
M2 (red)
Pri motion ra
-040
Sec motion ra
Pri motion dec
+151
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
10454+3831 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 62230 10454+3831 CHR 191 AB 1983 1991 3 135 0.4 9.42
Show 62230 10454+3831 HO 532 AC 1896 2012 21 38 0.5 9.42 11.76 2.34 Y <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo Minor
SAO
62230
HIP
52600
Tycho2
3009-02043-1
ADS
7915
GL
Gl 400A
BD
BD+39 2376
Distance
13.92
Distance ly
45.41
last precise pa
239
last precise sep
0.64
 
 
ORBITAL ELEMENTS
 
 
Period (P)160.67y Periastron (T)1972.58y Semi-major axis (a)1.791a
Eccentricity (e)0.86 Inclination (i)100.1° Longitude of periastron (ω)280.1°
Node (Ω)110.9° Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation1995
label rho theta
2000 0.623 72.2
2001 0.614 70.5
2002 0.606 68.8
2003 0.598 67.0
2004 0.590 65.2
2005 0.582 63.3
2006 0.575 61.4
2007 0.568 59.4
2008 0.561 57.4
2009 0.555 55.4
2010 0.549 53.2
2011 0.544 51.1
2012 0.539 48.9
2013 0.535 46.7
2014 0.532 44.4
2015 0.529 42.1
2016 0.527 39.8
2017 0.525 37.5
2018 0.524 35.2
2019 0.524 32.8
2020 0.524 30.5
2021 0.525 28.1
2022 0.527 25.8
2023 0.530 23.5
2024 0.533 21.2
2025 0.537 19.0
2026 0.541 16.8
2027 0.546 14.6
2028 0.552 12.5
2029 0.559 10.4
2030 0.565 8.3

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