03244-1539 A  2909AB

 
 
03H 24M 24.73S -15 39' 13.8" P.A. 59.1 SEP 0.1 MAG 8.40,8.40 SP G1/2V DIST. 49.33 PC (160.91 L.Y.)
 
 
Coord 2000
03244-1539
Discov num
A  2909
Comp
AB
Coord arcsec 2000
03 24 24.73 -15 39 13.8
Date first
1918
Date last
2013
Obs
8
Pa first
163
Pa last
140
P.A. Now (θ)
59.1°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0.1"
Mag pri
8.40
Mag sec
8.40
delta mag (ΔM)
0
Spectral class
G1/2V (yellow)
Pri motion ra
+223
Sec motion ra
Pri motion dec
-103
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
03244-1539 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 148944 03244-1539 A 2909 AB 1918 2013 8 59 0.1 8.40 8.40 0.00 Y <===
Show 148944 03244-1539 A 2909 AB,C 1918 2015 6 254 17.0 7.70 13.50 5.80
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
SAO
148944
HIP
15868
Tycho2
5873-00924-1
HD
21161
ADS
2524
BD
BD-16 630
Distance
49.33
Distance ly
160.91
last precise pa
140.2
last precise sep
0.032
 
 
ORBITAL ELEMENTS
 
 
Period (P)11.35y± 0.26 Periastron (T)2013.74y± 0.05 Semi-major axis (a)0.172a± 0.003
Eccentricity (e)0.507± 0.015 Inclination (i)71.3°± 1 Longitude of periastron (ω)283°± 1
Node (Ω)16.2°± 0.5 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.172 186.2
2001 0.145 196.1
2002 0.051 226.9
2003 0.098 10.7
2004 0.132 28.4
2005 0.117 44.7
2006 0.091 69.1
2007 0.081 106.1
2008 0.098 140.2
2009 0.129 161.0
2010 0.157 173.7
2011 0.172 183.1
2012 0.160 192.2
2013 0.093 208.1
2014 0.062 356.2
2015 0.129 23.2
2016 0.125 38.5
2017 0.100 59.1
2018 0.081 92.2
2019 0.089 129.8
2020 0.117 154.9
2021 0.148 169.8
2022 0.169 180.0
2023 0.168 188.9
2024 0.125 200.4
2025 0.028 295.2
2026 0.118 17.3
2027 0.131 32.9
2028 0.109 50.8
2029 0.086 79.1
2030 0.083 117.6

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